telephone equipment model no. kx-tg8421eb kx … equipment model no. kx-tg8421eb kx-tg8421em...

© Panasonic Communications Co., Ltd. 2009.Unauthorized copying and distribution is a viola-tion of law.

ORDER NO. KM40901797CE

Telephone EquipmentModel No. KX-TG8421EB

KX-TG8421EMKX-TG8421ENKX-TG8422EBKX-TG8422EMKX-TG8422ENKX-TG8423EBKX-TG8423EMKX-TG8423ENKX-TG8424EBKX-TG8424EMKX-TG8424ENKX-TGA840EBKX-TGA840EMKX-TGA840EN

Digital Cordless Answering SystemB:Black VersionM:Metallic Grey VersionN:Platinum Silver Version(for United Kingdom)

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KX-TG8421E/KX-TG8422E/KX-TG8423E/KX-TG8424E/KX-TGA840E

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TABLE OF CONTENTSPAGE PAGE

1 Safety Precautions----------------------------------------------- 41.1. For Service Technicians --------------------------------- 4

2 Warning -------------------------------------------------------------- 42.1. Battery Caution--------------------------------------------- 42.2. About Lead Free Solder (Pbf: Pb free)--------------- 42.3. Discarding of P.C. Board--------------------------------- 5

3 Specifications ----------------------------------------------------- 64 Technical Descriptions ----------------------------------------- 7

4.1. Block Diagram (Base Unit) ------------------------------ 74.2. Circuit Operation (Base Unit) --------------------------- 84.3. Block Diagram (Handset)-------------------------------114.4. Circuit Operation (Handset)----------------------------124.5. Circuit Operation (Charger Unit) ----------------------134.6. Signal Route -----------------------------------------------14

5 Location of Controls and Components ------------------165.1. Controls -----------------------------------------------------16

6 Setting up ----------------------------------------------------------176.1. Connections------------------------------------------------176.2. Battery-------------------------------------------------------17

7 Operating Instructions-----------------------------------------197.1. Programmable Settings---------------------------------197.2. Registering a Handset to a Base Unit ---------------227.3. Copying Phonebook Entries ---------------------------237.4. Error Messages -------------------------------------------237.5. Troubleshooting-------------------------------------------247.6. For Service Hint-------------------------------------------28

8 Service Mode -----------------------------------------------------298.1. Engineering Mode----------------------------------------298.2. Copying Phonebook Items when Repairing -------338.3. How to Clear User Setting------------------------------35

9 Troubleshooting Guide ----------------------------------------369.1. Troubleshooting Flowchart -----------------------------369.2. Troubleshooting by Symptom (Base Unit and

Charger Unit) ----------------------------------------------489.3. Troubleshooting by Symptom (Handset) -----------52

10 Disassembly and Assembly Instructions ---------------5610.1. Disassembly Instructions -------------------------------5610.2. How to Replace the Handset LCD -------------------60

11 Measurements and Adjustments---------------------------6111.1. The Setting Method of JIG (Base Unit) -------------6111.2. Adjustment Standard (Base Unit)---------------------6311.3. Adjustment Standard (Charger Unit)-----------------6411.4. The Setting Method of JIG (Handset) ---------------6511.5. Adjustment Standard (Handset) ----------------------6711.6. Things to Do after Replacing IC or X'tal ------------6811.7. RF Specification-------------------------------------------7011.8. How to Check the Handset Speaker or

Receiver ----------------------------------------------------7111.9. Frequency Table (MHz) ---------------------------------71

12 Miscellaneous ----------------------------------------------------7212.1. CPU Data (Base Unit) -----------------------------------7212.2. CPU Data (Handset)-------------------------------------7412.3. How to Replace the Flat Package IC----------------7612.4. How to Replace the LLP (Leadless Leadframe

Package) IC------------------------------------------------7812.5. Terminal Guide of the ICs, Transistors and

Diodes -------------------------------------------------------8013 Schematic Diagram ---------------------------------------------82

13.1. For Schematic Diagram -------------------------------- 8213.2. Schematic Diagram (Base Unit)---------------------- 8413.3. Schematic Diagram (Base Unit_Operation) ------- 8613.4. Schematic Diagram (Handset)------------------------ 8813.5. Schematic Diagram (Charger Unit)------------------ 90

14 Printed Circuit Board ------------------------------------------ 9114.1. Circuit Board (Base Unit_MAIN) --------------------- 9114.2. Circuit Board (Base Unit_Operation)---------------- 9314.3. Circuit Board (Handset) -------------------------------- 9414.4. Circuit Board (Charger Unit)--------------------------- 96

15 Exploded View and Replacement Parts List ----------- 9715.1. Cabinet and Electrical Parts (Base Unit) ----------- 9715.2. Cabinet and Electrical Parts (Handset)------------- 9815.3. Cabinet and Electrical Parts (Charger Unit) ------- 9915.4. Accessories and Packing Materials --------------- 10015.5. Replacement Part List -------------------------------- 105

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1 Safety Precautions1.1. For Service Technicians

• Repair service shall be provided in accordance with repair technology information such as service manual so as to pre-vent fires, injury or electric shock, which can be caused by improper repair work.1. When repair services are provided, neither the products nor their parts or members shall be remodeled. 2. If a lead wire assembly is supplied as a repair part, the lead wire assembly shall be replaced.3. FASTON terminals shall be plugged straight in and unplugged straight out.

• ICs and LSIs are vulnerable to static electricity.When repairing, the following precautions will help prevent recurring malfunctions.1. Cover plastic parts boxes with aluminum foil.2. Ground the soldering irons.3. Use a conductive mat on worktable.4. Do not grasp IC or LSI pins with bare fingers.

2 Warning2.1. Battery Caution

1. Danger of explosion if battery is incorrectly replaced.2. Replace only with the same or equivalent type recommended by the manufacturer.3. Dispose of used batteries according to the manufacture’s Instructions.

2.2. About Lead Free Solder (Pbf: Pb free)Note:

In the information below, Pb, the symbol for lead in the periodic table of elements, will refer to standard solder or solder that con-tains lead.We will use PbF solder when discussing the lead free solder used in our manufacturing process which is made from Tin (Sn),Silver (Ag), and Copper (Cu).This model, and others like it, manufactured using lead free solder will have PbF stamped on the PCB. For service and repairwork we suggest using the same type of solder.

Caution• PbF solder has a melting point that is 50 °F ~ 70 °F (30 °C ~ 40 °C) higher than Pb solder. Please use a soldering iron with

temperature control and adjust it to 700 °F ± 20 °F (370 °C ± 10 °C). • Exercise care while using higher temperature soldering irons.:

Do not heat the PCB for too long time in order to prevent solder splash or damage to the PCB.• PbF solder will tend to splash if it is heated much higher than its melting point, approximately 1100 °F (600 °C).• When applying PbF solder to double layered boards, please check the component side for excess which may flow onto the

opposite side (See the figure below).

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2.2.1. Suggested PbF SolderThere are several types of PbF solder available commercially. While this product is manufactured using Tin, Silver, and Copper(Sn+Ag+Cu), you can also use Tin and Copper (Sn+Cu) or Tin, Zinc, and Bismuth (Sn+Zn+Bi). Please check the manufacturer’sspecific instructions for the melting points of their products and any precautions for using their product with other materials. The following lead free (PbF) solder wire sizes are recommended for service of this product: 0.3 mm, 0.6 mm and 1.0 mm.

2.3. Discarding of P.C. BoardWhen discarding P. C. Board, delete all personal information such as telephone directory and caller list or scrap P. C. Board.

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3 Specifications

Note:• Design and specifications are subject to change without notice.

Note for Service:• Operation range: Up to 300 m outdoors, Up to 50 m indoors, depending on the condition.• Analog telephone connection: Telephone Line• Optional headset: KX-TCA94EX

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4 Technical Descriptions4.1. Block Diagram (Base Unit)

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4.2. Circuit Operation (Base Unit)4.2.1. Outline

Base Unit consists of the following ICs as shown in Block Diagram (Base Unit) (P.7).• DECT BBIC (Base Band IC): IC7

- Handling all the audio, signal and data processing needed in a DECT base unit- Controlling the DECT specific physical layer and radio section (Burst Module Controller section)- ADPCM code filter for speech encoding and speech decoding (DSP section)- Echo-cancellation and Echo-suppression (DSP section)- Any tones (tone, sidetone, ringing tone, etc.) generation (DSP section)- DTMF receiver (DSP section)- Clock Generation for RF Module- ADC, DAC, timer, and power control circuitry- PLL Oscillator- Detector - Compress/Expander- First Mixer- All interfaces (ex: RF Power Amp, EEPROM, LED, Analog Front End, etc.)

• RF Power Amp.: IC801- Amplifier for transmission and reception

• EEPROM: IC401- Temporary operating parameters (for RF, etc.)

• FLASH MEMORY: IC421- Voice Prompt (TAM) D/L Area- ICM/OGM Recording Area

• Additionally,- Power Supply Circuit (+3.0 V, +2.4 V, +1.8 V output)- Crystal Circuit (10.368 MHz)- Charge Circuit- Telephone Line Interface Circuit

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4.2.2. Power Supply CircuitThe power is supplied to the DECT BBIC, RF Module, EEPROM and Charge Contact from AC Adaptor (+6.5 V) as shown inFig.101. The power supply is as follows;

• DECT BBIC (IC7): DC Jack (+6.5 V) →D1→ IC1 → IC7DC Jack (+6.5 V) →D1→ IC1 → Q9 → IC7DC Jack (+6.5 V) →D1→ IC1 → Q8 → IC7

• RF Power Amp. (IC801): DC Jack (+6.5 V) →D1→ IC1 → IC801 (Power AMP)

• EEPROM (IC401): DC Jack (+6.5 V) →D1→ IC1 → IC7→ IC401

• FLASH MEMORY (IC421): DC Jack (+6.5 V) →D1→ IC1→ IC7→ IC421

• Charge Contact (TP16): DC Jack (+6.5 V) →D1→ R56 → R55 → D22→ TP16

<Fig.101>

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4.2.3. Telephone Line Interface<Function>

• Bell signal detection• Clip signal detection• ON/OFF hook circuit

Bell & Clip (: Calling Line Identification Presentation: Caller ID) signal detection:In the standby mode, Q3 is open to cut the DC loop current and decrease the ring load.When ring voltage appears at the L1T (A) and L1R (B) leads (when the telephone rings), the AC ring voltage is transferred asfollows;

• B → L2 → C4 → R6 → R33 → IC7 Pin 21 (CID INp) • A → L1 → C3 → R4 → R35 → IC7 Pin 20 (CID INn)

ON/OFF hook circuit:In the standby mode, Q3 is open, and connected as to cut the DC loop current and to cut the voice signal. The unit is conse-quently in an on-hook condition. When IC7 detects a ring signal or press the TALK Key onto the handset, Q4 turns on and then Q3 turns on, thus providing anoff-hook condition (DC current flows through the circuit) and the following signal flow makes the loop current.

• B → L2 →D3 → Q3 → Q5 → R21 → R22 → D3 → L1 →A [OFF HOOK]

4.2.4. Transmitter/Receiver• Audio Circuits and DTMF tone signal circuits.

Base Unit and Handset mainly consist of RF Module and DECT BBIC. Base Unit and Handset transmit/receive voice signal and data signal through the antenna on carrier frequency.

Signal Path:*Refer to Signal Route (P.14).

4.2.4.1. Transmitter BlockThe voice signal input from the TEL LINE interface goes to RF Power Amp. (IC801) through DECT BBIC (IC7) as shown inBlock Diagram (Base Unit) (P.7)The voice signal passes through the analog part of IC7 where it is amplified and converted to a digital audio stream signal. Theburst switch controller processes this stream performing encryption and scrambling, adding the various other fields to producethe GAP (Generic Access Profile) standard DECT frame, assigning to a time slot and channel etc.In IC7, the carrier frequency is changing, and frequency modulated RF signal is generated.In IC801,RF signal is amplified, andradiated from antenna. Handset detects the voice signal or data signal in the circuit same as the following explanation ofReceiver Block.

4.2.4.2. Receiver BlockThe signal of 1900 MHz band (1881.792 MHz ~ 1897.344 MHz) which is input from antenna is input to IC7 as shown in BlockDiagram (Base Unit) (P.7).In IC7, the signal of 1900 MHz band is downconverted to 864 kHz signal and demodulated, as GAP (Generic Access Profile)standard DECT frames. It passes through the decoding section burst switch controller where it separates out the frame informa-tion and performs de-encryption and de-scrambling as required. It then goes to the DSP section where it is turned back into ana-

log audio. This is amplified by the analog front end, and goes to the TEL LINE Interface.

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4.3. Block Diagram (Handset)

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12


4.4. Circuit Operation (Handset)4.4.1. Outline

Handset consists of the following ICs as shown in Block Diagram (Handset) (P.11).• DECT BBIC (Base Band IC): IC1

- All data signals (forming/analyzing ACK or CMD signal)- All interfaces (ex: Key, Detector Circuit, Charge, DC/DC Converter, EEPROM, LCD, RF Power Amp.)- PLL Oscillator- Detector- Compress/Expander- Reception

• RF Power Amp: IC801- Amplifier for transmission

• EEPROM: IC3- Temporary operating parameters (for RF, etc.)

4.4.2. Power Supply Circuit/Reset CircuitCircuit Operation:

When power on the Handset, the voltage is as follows;BATTERY(2.2 V ~ 2.6 V: BATT+) → F1 → Q2 (1.8 V), IC1-43pin (2.5V)The Reset signal generates IC1 (61 pin) and 1.8 V.

4.4.3. Charge CircuitCircuit Operation:

When charging the handset on the Base Unit, the charge current is as follows;DC+(6.5 V) → D1 → R56 → R55 → D22 → CHARGE+(Base) → CHARGE+(Handset) → Q4 → D7→ F1 → BATTERY+... Bat-tery... BATTERY- → R45 → GND → CHARGE-(Handset)→ CHARGE-(Base) → GND → DC-(GND)In this way, the BBIC on Handset detects the fact that the battery is charged.The charge current is controlled by switching Q9 of Handset.Refer to Fig.101 in Power Supply Circuit (P.9).

4.4.4. Battery Low/Power Down DetectorCircuit Operation:

“Battery Low” and “Power Down” are detected by BBIC which check the voltage from battery.The detected voltage is as follows;

• Battery LowBattery voltage: V(Batt) 2.25 V ± 50 mV

The BBIC detects this level and " " starts flashing.• Power Down

Battery voltage: V(Batt) 2.0 V ± 50 mVThe BBIC detects this level and power down.

4.4.5. SpeakerphoneThe hands-free loudspeaker at SP+ and SP- is used to generate the ring alarm.

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4.5. Circuit Operation (Charger Unit)4.5.1. Power Supply CircuitThe power supply is as shown.

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4.6. Signal Route

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5 Location of Controls and Components

5.1. Controls5.1.1. Base Unit

5.1.2. Handset

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6 Installation Instructions6.1. Connections

6.2. Battery6.2.1. Battery Installation

See For Service Hint (P.28)

6.2.2. Battery Charge

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Note for service:The battery strength may not be indicated correctly if thebattery is disconnected and connected again, even after it isfully charged. In that case, by recharging the battery asmentioned above, you will get a correct indication of thebattery strength.

6.2.3. Battery Level

6.2.4. Panasonic Ni-MH Battery Performance (supplied batteries)

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7 Operating Instructions7.1. Programmable SettingsYou can customise the unit by programming the following features using the handset.

7.1.1. Programming by scrolling through the display menus

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*1 The item will not be reset when pressing , , and keys. Refer to How to Clear User Setting (P.35).

*2 The item will not be reset when pressing , , and keys. Refer to How to Clear User Setting (P.35).

Cross Reference:Registering a Handset to a Base Unit (P.22)

7.1.2. Answering System Setting

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7.1.3. SMS Setting

Note:(*1) If the password of a private mailbox is forgotten, refer to For Service Hint (P.28)

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7.2. Registering a Handset to a Base Unit

If you forget your PIN, see "Programmable settings" in Troubleshooting (P.24)

Note:• When you purchase an additional handset, refer to the additional handset's installation manual for registration.

7.2.1. Deregistering a Handset

7.2.2. Cancelling a base unit

Cross Reference:Registering a Handset to a Base Unit (P.22)

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7.3. Copying Phonebook EntriesYou can copy phonebook entries to the phonebook of another compatible Panasonic handset.

Note:• Category settings for phonebook entries are not copied.

7.3.1. Copying all entries

7.4. Error Messages

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7.5. Troubleshooting

25


26


27


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7.6. For Service Hint

Cross Reference:Battery Charge (P.17)Frequently Used Items (Base Unit) (P.30)

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8 Service Mode8.1. Engineering Mode8.1.1. Base Unit

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Frequently Used Items (Base Unit)ex.)

Note:(*1) Refer to Registering a Handset to a Base Unit (P.22).(*2) When you enter the address or New Data, please refer to the table below.

(*3)

Items Address Default Data New Data RemarksC-ID (FSK) sensitivity 04 B6 00 01 (6 dB up) 02 (12 dB up) When hex changes from “00” to “01” or “02”,

gain increases by 6 dB or 12 dB.C-ID (DTMF) sensitivity 04 C4 50 60 (6 dB up) 70 (12 dB up) When hex changes from “50” to “60” or “70”,

gain increases by 6 dB or 12 dB.SMS (FSK) receiving sensitiv-ity

04 B6 00 01 (6 dB up) 02 (12 dB up) When hex changes from “00” to “01” or “02”, gain increases by 6 dB or 12 dB.

SMS (FSK) sending level 04 D0/04 CF 0C/90 19/20 (6 dB up)

32/40 (12 dB up)

When hex changes from “00 0B” to “00 16” or “00 2C”, gain increases by 6 dB or 12 dB.

Frequency 00 02/00 01 02/70 - - Use these items in a READ-ONLY mode toconfirm the contents. Careless rewriting maycause serious damage to the computer system.

ID 00 10~00 14 Given value - -

Bell length 01 F7 32 (5sec) (*3) 1E (3 sec) 14 (2 sec) This is time until bell stops ringing.(Unit: 100 ms)

Items Address Default Data New Data RemarksSMS MailBox1 Password 3F CF / 3F D0 Given value 00/00 When New Data is input, the password of

MailBox1 becomes “0000”.SMS MailBox2 Password 3F D1 ~ 3F D2 Given value 00/00 When New Data is input, the password of



MailBox4 becomes “0000”.SMS MailBox5 Password 3F D7 ~ 3F D8

Given value 00/00 When New Data is input, the password of

MailBox5 becomes “0000”.SMS MailBox6 Password 3F D9 ~ 3F DA Given value 00/00 When New Data is input, the password of

MailBox6 becomes “0000”.

Desired Number (hex) Input Keys Desired Number (hex) Input Keys0 0 A [R] + 01 1 B [R] + 1. . C [R] + 2. . D [R] + 3. . E [R] + 49 9 F [R] + 5

Bell length 32(hex) = 50(dec) → 50 × 100 msec = 5000 msec (5 sec)

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8.1.2. Handset

32


Frequently Used Items (Handset)ex.)

Note:(*1) When you enter the address or New Data, please refer to the table below.

(*2) When adding “01” (hex) to default value, sending level increases by 0.25 dB.ex.)

(*3) When reducing “01” (hex) from default value, receiving level increases by 0.25 dB.ex.)

(*4) Use these items in a READ-ONLY mode to confirm the contents. Careless rewriting may cause serious damage to thehandset.

Items Address Default Data New Data Possible AdjustedValue MAX (hex)

Possible AdjustedValue MIN (hex)

Remarks

Sending level 00 06 Adjusted value Given value 6F 00 (*2)Receiving level 00 07 Adjusted value Given value 00 3F (*3)

Battery Low 00 04 70 - - -(*4)Frequency 00 02/00 01 02/70 - - -

ID 00 10~00 14 Given value - - -

Desired Number (hex.) Input Keys Desired Number (hex.) Input Keys0 0 A [R] + 01 1 B [R] + 1. . C [R] + 2. . D [R] + 3. . E [R] + 49 9 F [R] + 5

Item Default Data New Data3A 3E 36

Sending level -8dBm -7dBm -9dBm

Item Default Data New Data14 18 10

Receiving level -22dBm -23dBm -21dBm

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8.2. Copying Phonebook Items when RepairingYou can copy the handset phonebook to another (compatible Panasonic) handset. This will help to save the original phonebookdata which the customer has registered.Available models: KX-TG8421/KX-TG8422/KX-TG8423/KX-TG8424Refer to the following procedures.

Note:• BS=Base Unit , HS=Handset• If the max number of handsets are already registered to the base unit, a new handset cannot be registered.• To register the handset, refer to Registering a Handset to a

Base Unit (P.22)• To cancel the handset, refer to Deregistering a Handset

(P.22)• To copy the handset phonebook, refer to Copying Phone-

book Entries (P.24)

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Note:• BS=Base Unit , HS=Handset• If the max number of handsets are already registered to the base unit, a new handset cannot be registered.• To register the handset, refer to Registering a Handset to a Base Unit (P.22)• To cancel the handset, refer to Deregistering a Handset (P.22)

• To copy the handset phonebook, refer to Copying Phonebook Entries (P.24)

35


8.3. How to Clear User SettingUnits are reset to the Factory settings by this operation (Erase recorded Voice messages*, stored Phone numbers, Caller listand etc.)

Note:• Some menus are not reset. Refer to Operating Instructions (P.19).• The reset menus differ depending on the following operations.• This operation should not be performed for a usual repair.

* KX-TG8421/KX-TG8422/KX-TG8423/KX-TG8424 only

8.3.1. Resetting both base unit and handsetBoth the base unit and the registered handset which you did the following steps to are reset. Other registered handsetswill not be reset.

Note:(*1) Refer to Registering a Handset to a Base Unit (P.22).

8.3.2. Resetting only handsetThe only handset is reset by doing the following steps to .

Note: (*2)• The handset registration to the base unit is cancelled.• If the handset needs to be registered to the base unit, refer to Registering a Handset to a Base Unit (P.22).

• If users do not bring the base unit with them, the registration procedure has to be done by users themselves.

36


9 Troubleshooting Guide9.1. Troubleshooting FlowchartFlow Chart

Cross Reference:Check Power (P.37)Bell Reception (P.47)Check Battery Charge (P.38)Check Link (P.39)Check the RF part (P.43)Check Handset Transmission (P.46)Check Handset Reception (P.46)Signal Route (P.14)Check Caller ID (P.46)Check TAM Operation (P.47)

37


9.1.1. Check Power9.1.1.1. Base Unit

Is the AC Adaptor inserted into AC outlet? (*1)

Cross Reference:Power Supply Circuit (P.9)

Note:(*1) Refer to Specifications (P.6) for part number and supply voltage of AC Adaptor.

9.1.1.2. Handset

Cross Reference:Power Supply Circuit/Reset Circuit (P.12)

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9.1.2. Check Battery Charge9.1.2.1. Base Unit

Cross Reference:Charge Circuit (P.12)

9.1.2.2. Handset

Cross Reference:Check Power (P.37)Charge Circuit (P.12)

9.1.2.3. Charger Unit

Cross Reference:Charge Circuit (P.12)

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9.1.3. Check Link9.1.3.1. Base Unit

Note:(*1) Refer to Troubleshooting by Symptom (Base Unit and Charger Unit) (P.48)

Cross Reference:Check Point (Base Unit) (P.48)Power Supply Circuit (P.9)

40


Cross Reference:Check Point (Base Unit) (P.48)

41


9.1.3.2. Handset

Cross Reference:Check Point (Handset) (P.52)Power Supply Circuit/Reset Circuit (P.12)

42


Cross Reference:Check Point (Handset) (P.52)

43


9.1.4. Check the RF part9.1.4.1. Finding out the Defective part

After All the Checkings or Repairing1. Re-register the checked Handset to the checked Base Unit, and Regular HS to Regular BU.

Note:If you need to register a handset, refer to Registering a Handset to a Base Unit (P.22)

44


9.1.4.2. RF Check FlowchartEach item (1 ~ 3) of RF Check Flowchart corresponds to Check Table for RF part (P.45).Please refer to the each item.

Note:(*1) Base unit - refer to (G) of Check Point (Base Unit) (P.48) Handset - refer to (H) of Check Point (Handset) (P.52)

45


9.1.4.3. Check Table for RF part

Note:(*1) Refer to Adjustment Standard (Base Unit) (P.63)(*2) Refer to Adjustment Standard (Handset) (P.67)

No. Item BU (Base Unit) Check HS (Handset) Check1 Link Confirmation Normal

HS, BU Mode: [Normal mode]

1. Register Regular HS to BU (to be checked).

2. Press [Talk] key of the Regular HS to establish link.

1. Register HS (to be checked) to Regular BU.

2. Press [Talk] key of the HS to establish link.

2 X’tal Frequency confirmation 1. Check X’tal Frequency. (*1)(10.368 MHz ± 100 Hz)

1. Check X’tal Frequency. (*2)(10.368 MHz ±100Hz)

3 Range Confirmation Normal

HS, BU Mode: [Normal mode]

1. Register Regular HS to BU (to be checked).

2. Press [Talk] key of the Regular HS to establish link.

3. Compare the range of the BU (being checked) with that of the Regular BU.

1. Register HS (to be checked) to Regular BU.

2. Press [Talk] key of the HS to establish link.3. Compare the range of the HS (being

checked) with that of the Regular HS.

46


9.1.5. Check Handset Transmission

Cross Reference:Signal Route (P.14)

9.1.6. Check Handset Reception

Cross Reference:How to Check the Handset Speaker or Receiver (P.71).Signal Route (P.14)

9.1.7. Check Caller ID

Cross Reference:Signal Route (P.14)

47


9.1.8. Bell Reception9.1.8.1. Base Unit

9.1.8.2. Handset

Cross Reference:Telephone Line Interface (P.10)Check Link (P.39)How to Check the Handset Speaker or Receiver (P.71)

9.1.9. Check TAM Operation

Cross Reference:Power Supply Circuit (P.9)

Note:(*1) When replacing FLASH MEMORY (IC421), TAM data need to be written to it. Refer to Base Unit of Things to Do afterReplacing IC or X'tal (P.68)

48


9.2. Troubleshooting by Symptom (Base Unit and Charger Unit)If your unit has below symptoms, follow the instructions in remedy column. Remedies depend on whether you have DECT tester(*1) or not.

Note:(*1) A general repair is possible even if you don’t have the DECT tester because it is for confirming the levels, such as Acousticlevel in detail.(*2) Refer to Check Point (Base Unit) (P.48)

9.2.1. Check Point (Base Unit)Please follow the items below when BBIC or EEPROM or FLASH is replaced.

Note:After the measuring, suck up the solder of TP.*: PC Setting (P.61) is required beforehand.The connections of simulator equipments are as shown in Adjustment Standard (Base Unit) (P.63).

Items Check Point

Procedure Check or Replace Parts

(A) 3.0 V Supply Confirma-tion

VDD3 1. Confirm that the voltage between test point VDD3 and GND is 3.0 V ± 0.2 V. IC1, C31, C32, R38, R39, C36,

F1, C37, D1(B) 1.8 V Supply Confirma-

tionVDD1 1. Confirm that the voltage between test point VDD1 and GND is 1.8 V ± 0.02 V.

2. Execute the command “VDD”, then check the current value.3. Adjust the 1.8V voltage of VDD1 executing command “VDD XX“(XX is the

value).

Q8, C75, C614, C61, IC7

(C) Charge Pump2.5V Supply Confirma-tion

VDD5 1. Confirm that the voltage between test point VDD5 and GND is 2.5 V -0.1/+0.3V.

IC7,C625,C631

(D) Charge Pump3.0V Supply Confirma-tion

VDD4 1. Confirm that the voltage between test point VDD4 and GND is 3.0 V ± 0.2 V. IC7,C616,C630

(E)* BBIC Confirmation - 1. BBIC Confirmation (Execute the command “getchk”).2. Confirm the returned checksum value.

Connection of checksum value and program number is shown below.

IC7, X1, R77, RA80

(F)* EEPROM Confirmation - 1. EEP-ROM Confirmation (Execute the command "sendchar EPV").2. Confirm the returned Value (Value for reference is written at "EEPROM C/

SUM" in Software_Version_Table.xls).

IC7, RA402, C51, R657,

IC401(G)* BBIC Clock Adjustment CLK 1. Input Command “ sendchar WWD ff 48 IC 8006”

2. Confirm that the voltage between testpoint VDD4 and GND is less than 1.0 V.3. Input Command “ sendchar sfr”, then you can confirm the current value.4. Check X’tal Frequency. (10.368 MHz ± 100 Hz).5. If the frequency is not 10.368MHz ± 100Hz, adjust the frequency of CLK exe-

cuting the command “sendchar sfr xx xx (where xx is the value)” so that thereading of the frequency counter is 10.368000 MHz ± 5 Hz.

X1, IC7, R430, C305

49


(H)* Hookswitch Check with DC Characteristics

- 1. Connect Telephone Socket to Tel-simulator which is connected with 600 Ω.2. Set line voltage to 48 V and line current to 40mA at off-hook condition of nor-

mal telephone.3. Execute the command “hookoff”4. Confirm that the line current is 40 mA ± 5 mA.5. Execute the command “hookon”.6. Confirm that the line current is less than + 0.8 mA.

L1, L2, Q3, R14, R15, Q4, R16,

R17, D3, R18~R24,

C15~C17, D21, Q5, R27, IC7

(I) DTMF Generator Check - 1. Connect Telephone Socket to DTMF tester. (Load=600 Ω)2. Link Handset and push dial key.3. Confirm DTMF character.4. Confirm that the high Group is -6.0 dBm ~ -10.0 dBm.5. Confirm that the low Group is -8.5 dBm ~ -12.5 dBm.

IC7, R116, C141, R29, C22,

C23, Q5, D21

(J)* Transmitted Power Con-firmation

-ANTI_TP

Remove the Antenna before starting step from 1 to 7.1. Configure the DECT tester (CMD60) as follows;

<Setting>• Test mode: FP• Traffic Carrier: 5• Traffic Slot: 4• Mode: Loopback• PMID: 00000• RF LEVEL = -70 dBm.

2. Execute the command ”sendchar TST”.3. Execute the command “sendchar dmv 2 2”.4. Check that “Signalling Status” has been set to “Locked”, then press “ACCEPT

RFPI”.5. Initiate connection from Dect tester (“set up connect”)6. Execute the command “ANT1”.7. Confirm that the NTP value at ANT is 19.0 dBm ~ 25.0 dBm.

IC7, C802~C806, C808~C814, C820, C819, C822, C823, C825, C827, C826, C834, C851, C853, C859~C861,

DA801, DA802, IC801,

L801~L803, C855~C858, R801~R807, R106, R109,

Q9, C617 (K)* Modulation Check and

Adjustment-

ANTI_TPFollow steps 1 to 6 of (J).

7.Confirm that the B-Field Modulation is -370 ± 30/ +370± 30 kHz/div & Modu-lated width 690 kHz using data type Fig31.8.Adjust the B-Field Modulation if required. (Execute the command “readmod”and “wrtmod xx”, where xx is the value.)


DA801, DA802, IC801,

L801~L803, C855~C858, R801~R807, R106, R109,

Q9, C617 (L)* Frequency Offset Check -


7.Confirm that the frequency offset is < ± 50 kHz.IC7,

C802~C806, C808~C814, C820, C819, C822, C823, C825, C827, C826, C834, C851, C853, C859~C861,

DA801, DA802, IC801,

L801~L803, C855~C858, R801~R807, R106, R109,

Q9, C617

Items Check Point


50


(M)* Frequency Drift Confir-mation

-ANTI_TP

Follow steps 1 to 6 of (J).7.Confirm that the frequency drift is < ± 35 kHz/ms.


DA801, DA802, IC801,

L801~L803, C855~C858, R801~R807, R106, R109,

Q9, C617 (N)* Sensitivity Receiver

Confirmation-


7.Set DECT tester power to -90 dBm.8.Confirm that the BER is < 1000 ppm.


DA801, DA802, IC801,

L801~L803, C855~C858, R801~R807, R106, R109,

Q9, C617 (O)* Timing Confirmation -


7.Confirm that the Timing accuracy is• ± 5.0 ppm (When adjust the frequency of CLK in item (G)).• ± 15 ppm (When do not adjust the frequency of CLK in item (A)).


DA801, DA802, IC801,

L801~L803, C855~C858, R801~R807, R106, R109,

Q9, C617 (P)* Power RAMP Confirma-

tion- Follow steps 1 to 6 of (J).

7.Confirm that Power RAMP is matching.IC7,

C802~C806, C808~C814, C820, C819, C822, C823, C825, C827, C826, C834, C851, C853, C859~C861,

DA801, DA802, IC801,

L801~L803, C855~C858, R801~R807, R106, R109,

Q9, C617

Items Check Point


51


9.2.2. Check Point (Charger Unit)

Note:After the measuring, suck up the solder of TP.The connection of adjustment equipment is as shown in Adjustment Standard (Charger Unit) (P.64).

(Q) Audio Check - 1. Link with Handset.2. Input -45dBm/1kHz to MIC of Handset.

Measure the Level at Line I/F and distortion level.3. Confirm that the level is -8 dBm ± 2 dBm and that the distortion level is < 5%

at TEL Line (600 Ω Load).4. Input -20 dBm/1 kHz to Line I/F.

Measure the level at Receiver of Handset and distortion level(*Receive volume set to second position from minimum).

5. Confirm that the level is -22 dBm ± 2 dBm and that the distortion level is < 5%at Receiver (Volume Middle, 150 Ω Load).

IC7, SA1, L1, L2, D3, Q3, Q4, R14, R15, R16, R17, D21, Q5, R19, R20, C14,

C56, R117, R116, C141, R9,

C22, C23

(R) Charging Check - 1. Connect Charge Contact 12 Ω/2 W resistor between charge+ and charge-.2. Measure and confirm voltage across the resistor is 3.10 V ± 0.3 V.

R55, R56, D22, D23

(S) TAM Operation Confir-mation

- 1. TAM Confirmation (Execute the command "sendchar VPI").2. Confirm the returned Value (Value is "DAS7EA 03").

IC7, IC421, R424~R429, C421, C422,

Q421(T) 2.4V Supply Confirma-

tion VDD2 VDD2 1. Confirm that the voltage between test point VDD2 and GND is 2.5V ± 0.2V. IC7, Q9, C617

Items Check Point


(A) Charging Check - 1. Connect Charge Contact 10Ω/2 W resistor between charge+ and charge-.2. Measure and confirm voltage across the resistor is 3.1 V ± 0.3 V.

R1 D1, F1

Items Check Point


52


9.3. Troubleshooting by Symptom (Handset)If your unit has below symptoms, follow the instructions in remedy column. Remedies depend on whether you have DECT tester(*1) or not.

Note:(*1) A general repair is possible even if you don’t have the DECT tester because it is for confirming the levels, such as Acousticlevel in detail.(*2) Refer to Check Point (Handset) (P.52)

9.3.1. Check Point (Handset)Please follow the items below when BBIC or EEPROM is replaced.

Note:After the measuring, suck up the solder of TP.*: PC Setting (P.65) is required beforehand.The connections of adjustment equipments are as shown in Adjustment Standard (Handset) (P.67).

Items Check Point


(A)* 1.8 V Supply Adjustment VDD1 1. Confirm that the voltage between test point VDD1 and GND is 1.8 V ± 0.02 V.2. Execute the command “VDD”, then check the current value.3. Adjust the 1.8V voltage of VDD1 executing command “VDD XX“(XX is the

value).

IC1, Q2, C48, D1, C1, C44,

R12, R45, C40, C45, F1

(B)* BBIC Confirmation - 1. BBIC Confirmation (Execute the command “getchk”).2. Confirm the returned checksum value.

Connection of checksum value and program number is shown below.

IC1, X1, RA61, R64, R66

(C)* EEP-ROM Confirmation - 1. EEP-ROM Confirmation (Execute the command "sendchar EPV").2. Confirm the returned Value (Value for reference is written at "EEPROM C/

SUM" in Software_Version_Table.xls).

IC1, IC3, R40~R42,

C172(D) Charge Control Check &

Charge Current Monitor Check

- 1. Apply 3.5 V between CHG(+) and CHG(-) with DC power supply and set cur-rent limit to 250 mA.Confirm the indication of “charging” on LCD.

2. Confirm that the current limit LED of DC power supply is ON/OFF.Confirm it after waiting over 1 minute at least.

3. Decrease current limit of DC power supply to 100 mA.4. Confirm that the current limit LED of DC power supply is stable. (Current limiter

is ON.)(If charge control cannot be confirmed by this procedure, please use battery to hand-set power supply and try again.)

IC1, Q4 Q9, D7, R6, R7, F1, C1, R2,

R30, R31, R8, R45

(E)* Charge Detection (OFF) Check

- 1. Stop supplying 3.5 V to CHG (+) and CHG (-).2. Confirm the indication of “charging” has been cleared.

IC1, Q4 Q9, D7, R6, R7, F1, C1, R2,

R30, R31, R8, R45

53


(F)* Battery Monitor Check - 1. Apply 2.25 V between BATT+ and BATT-.2. Execute the command

sendchar PADsendchar LED 0sendchar CRX 0 1sendchar AD1It assumes that the return value is XX.a) 6c XX 71: No need to adjustb) XX: 6A ~ 6B: Need to adjustXX: 72 ~ 74: Need to adjustWrite AD value of 2.25 V to EEPROM.ex) read data: XX = 6A, write data: YY = 6Aread data: XX = 73, write data: YY = 73EEPROM = 0004(Low Voltage) write “YY”Execute the command “wreeprom 00 04 01 YY”.EEPROM = 0005(No Voltage) write ‘’YY - 1D’’Execute the command “×wreeprom 00 05 01 ZZ”.EEPROM = 000A(Low Voltage BL) write “YY - 16”Execute the command “wreeprom 00 0A 01 WW”.Note:

ZZ = YY - CNo Voltage writing data limit is ‘00’.c) XX: 00 ~ 69: RejectXX: 75 ~ FF: Reject

IC1, F1, C1, R12, R45

(G) Battery Low Confirma-tion

- 1. Apply 2.40 V between BATT+ and BATT-.2. Confirm that there is no flashing of Battery Icon.3. Apply 2.25 V ± 0.08 V between BATT+ and BATT-.4. Confirm that there is flashing of Battery Icon.

IC1, F1, C1, R12, R45

(H)* BBIC Clock Adjustment CLK 1. Apply 2.6 V between BATT+ and BATT- with DC power.2. Input Command “sendchar sfr”, then you can confirm the current value.3. Check X’tal Frequency. (10.368 MHz ± 100 Hz).4. If the frequency is not 10.368 MHz ± 100 Hz, adjust the frequency of CLK exe-

cuting the command “sendchar sfr xx xx (where xx is the value)” so that thereading of the frequency counter is 10.368000 MHz ± 5 Hz.

Note:Clear the registered information for Base Unit before measurement, because theFrequency will not possibly get stable due to the registered information.Pressing the button of “3” “7” “9” “#” clears the registration.Register to it on Base Unit after measurement.

IC1, X1, C47

(I)* Transmitted Power Con-firmation

- Remove the Antenna before starting step from 1 to 4.1. Configure the DECT tester (CMD60) as follows;

<Setting>• Test mode: PP• RFPI: 0102030405• Traffic Carrier: 5• Traffic Slot: 4• Mode: Loopback• RF LEVEL = -70 dBm• PACKET: PP32Z

2. Execute the command “sendchar TST 01 02 03 04 05".3. Initiate connection from DECT tester.4. Confirm that the NTP value at ANT is 19 dBm ~ 25 dBm.

IC1, C802~C806, C808~C814, C819~C820,

C822, C825~C827,

C834, C859~C864, L801~L804,

DA801, R801~R808

(J)* Modulation Check and Adjustment

- Follow steps 1 to 3 of (K).4.Confirm that the B-Field Modulation is -370±30/ +370±30 kHz/div & Modulatedwidth 690 kHz using data type Fig 31.

IC1, C802~C806, C808~C814, C819~C820,

C822, C825~C827,

C834, C859~C864, L801~L804,

DA801, R801~R808

Items Check Point


54


(K)* Frequency Offset Confir-mation

- Follow steps 1 to 3 of (I).4.Confirm that the frequency Offset is < ± 50 kHz.

IC1, C802~C806, C808~C814, C819~C820,

C822, C825~C827,

C834, C859~C864, L801~L804,

DA801, R801~R808

(L)* Frequency Drift Confir-mation

- Follow steps 1 to 3 of (I).4.Confirm that the frequency Drift is < ± 35 kHz/ms.

IC1, C802~C806, C808~C814, C819~C820,

C822, C825~C827,

C834, C859~C864, L801~L804,

DA801, R801~R808

(M)* Sensitivity Receiver Confirmation

- Follow steps 1 to 3 of (I).4.Set DECT tester power to -88 dBm.5.Confirm that the BER is < 1000 ppm.

IC1, C802~C806, C808~C814, C819~C820,

C822, C825~C827,

C834, C859~C864, L801~L804,

DA801, R801~R808

(N)* Power RAMP Confirma-tion

- Follow steps 1 to 3 of (I).4.Confirm that Power RAMP is matching.

IC1, C802~C806, C808~C814, C819~C820,

C822, C825~C827,

C834, C859~C864, L801~L804,

DA801, R801~R808

(O) Audio Check and Confir-mation

- 1. Link to BASE which is connected to Line Simulator.2. Set line voltage to 48 V and line current to 40 mA.3. Input -45 dBm/1KHz to MIC and measure Line output level.4. Confirm that the level is -8 dBm ± 2 dBm and that the distortion level is < 5% at

TEL Line (600 Ω Load).5. Input -20 dBm/1KHz to Line I/F and measure Receiving level at REV+ and

REV-.6. Confirm that the level is -22 dBm ± 2 dBm and that the distortion level is < 5%

at Receiver. (vol = 2)

IC1, C12, D19, D20, C96,

C97, R215, R27, RA4, C11, C13,

R28, D3, D4, MIC, L9, RA2,

R73, R74

(P) SP phone Audio Check and Confirmation

- 1. Link to Base which is connected to Line Simulator.2. Set line voltage to 48 V and line current to 40 mA.3. Set the handset off-hook using SP-Phone key.4. Input -25 dBm/1KHz to Line I/F and measure Receiving level at SP+ and SP-.5. Confirm that the level is -15 dBm ± 2 dBm and that the distortion level is < 5%.

(vol = 3)

IC1, C12, C73, D13, D14,

R152, R73, R74, RA2, MIC, C11, C13, RA4, R27, R28,

R208, R209, C96, C97, R215, C72

(Q) Charge Pump 2.5V Sup-ply Confirmation

CP2.5V 1. Confirm that the voltage between testpoint CP2.5V and GND is 2.5V -0.1/+0.3V.

C52, C53, C49

(R) Charge Pump 4.0V Sup-ply Confirmation

CP4.0V 1. Confirm that the voltage between testpoint CP4.0V and GND is 4.0V I0.2V. C50, C51

Items Check Point


55


9.3.2. Troubleshooting for SpeakerphoneWhen the customer’s telephone line corresponds to the following conditions, and the transmission signal of SP-Phone is inter-rupted, performing the next set up to a cordless handset will improve it to some extent.Conditions1. When customer’s line has less line loss.

ex.) The customer is using optical fiber, ISDN terminal adaptor, or PBX.In this case, receiving signal is strong and it may affect transmission signal.

2. When the other party is talking from noisy place.ex.) The other party is using cellular phone. The background noise is very loud.In this case, the noise from the other party (i.e. surrounding noise) may affect transmission signal.

Setting Method• Change the handset address of EEPROM (0129) from 00 to 01 by Engineering Mode.

56


10 Disassembly and Assembly Instructions10.1. Disassembly Instructions10.1.1. Base Unit

57


58


10.1.2. Handset

59


10.1.3. Charger Unit

60


10.2. How to Replace the Handset LCD

61


11 Measurements and Adjustments11.1. The Setting Method of JIG (Base Unit)11.1.1. Preparation11.1.1.1. Equipment Required

• DECT tester: Rohde & Schwarz, CMD 60 is recommended.• Frequency counter: It must be precise enough to measure intervals of 1 Hz (precision; ±4 ppm).

Hewlett Packard, 53131A is recommended.• Digital multi-meter (DMM): it must be able to measure voltage and current.• Oscilloscope

11.1.1.2. JIG and PC• Serial JIG

JIG Cable: PQZZ1CD300E*• PC which runs in DOS mode• Batch file CD-ROM for setting: PNZZTG8421E

Note:*: If you have the JIG Cable for TCD500 series(PQZZ1CD505E), change the following values of resis-tance. Then you can use it as a JIG Cable for both TCD300and TCD500 series. (It is an upper compatible JIG Cable.)

11.1.2. PC Setting11.1.2.1. Connections

Connect the AC adaptor to DC-JACK (base unit). Connect the JIG Cable GND (black) to GND. Connect the JIG Cable RX (red) to URX and TX (yellow) to UTX.

Note:*: COM port names may vary depending on what your PC calls it.

Resistor Old value (kΩ) New value (kΩ)R2 22 3.3R3 22 3.3R4 22 4.7R7 4.7 10

62


11.1.2.2. Batch file Setting

Note:• “****” varies depending on the country.

11.1.2.3. CommandsSee the table below for frequently used commands.

Command name Function Examplerdeeprom Read the data of EEPROM Type “rdeeprom 00 00 FF”, and the data from address

“00 00” to “FF” is read out.readid Read ID (RFPI) Type “readid”, and the registered ID is read out.writeid Write ID (RFPI) Type “writeid 00 18 E0 0E 98”, and the ID “0018 E0 0E

98” is written.hookoff Off-hook mode on Base Type “hookoff”.hookon On-hook mode on Base Type “hookon”.getchk Read checksum Type “getchk”.wreeprom Write the data of EEPROM Type “wreeprom 01 23 45”. “01 23” is address and “45”

is data to be written.

63


11.2. Adjustment Standard (Base Unit)When connecting the simulator equipments for checking, please refer to below.

11.2.1. Bottom View

Note:(A) - (T) is referred to Check Point (Base Unit) (P.48)

A

PN

LB11

00Z

CH

G

SP

L2TL1T

L1RL2R

1

80

EE

E

1

CLK

VD

D5

VD

D4

VD

D3

VD

D2

UT

X

J101

RE

DW

HT

RE

DB

LK

GN

D

AN

T1_

TP

CL1

JTA

G

UR

X

4

E

DC

PbF

C421

C422C631

C625

C72

C137 C53C55

C54

C148

C423C84

C147

C826

C820

C305

C65C614

C61

VDD1

C617

C814

R76

R77R78

R75

R34

R81

R33

R37R36

R615

IC7SPp

DCP

DCM

SPm

Q421

Q9

AN

T2_

TP

CL2

C62

3C

626

C15

5

LIN

E_D

C

C18

C22 C

56

C16

7

C14

1

C24

C23

C85

7

C85

6

C85

5

C52

C16

9C

170

C13

6

C17

1

C16

8

C14

9 C74

C83

7C

75

C14

5C

146 C15

0

C85

8

R20

R23

R18R

24R

116

R12

R13

R35

R32

R87

R86

L2R

L1R

L2T

L1T

BLK

YLW

RE

DG

RN

TP

10

D23

D26

D21

Q2

C622

C14

C57

R19

R117

R29

R2

TP9

D22

D16

D15

Q5

GN

D_C

Q8

C61

5

C43

0

C60

C63

0

C61

6

R42

4R

425

R43

0

R42

6 R42

9

R42

8R

427

IC42

1

TP

16-s

ub

TP

16

TP

15-s

ub

TP

15

RA

80

RA

1

GND

LINE_DC

GND

CHARGE+

CHARGE-

GND

RX

TX

L1T(Q

)

(Q)

(I)

(Q)

((A

),(B

),(C

),(D

),(T

)

(R)

(G)

DT

MF

Tes

ter

CA

LL-I

DS

imul

ator

BE

LLS

imul

ator

AF

OS

C

AF

Vol

t M

eter

LOO

PS

imul

ator

OS

C

600

150

SP

DC

_IN

GN

DA

F V

olt

Met

er

Dum

my

Han

dset

AF

OS

C

6.3 V 47 F

CLK

GN

D

GN

D

(E),

(F),

(G),

(H)

(I)

,(J)

,(K

),(S

)(J

),(K

),(L

),(M

) (

N),

(O),

(P)

AN

T

CP

_2.5

V

+3.

0V

+2.

4V

+1.

8V

VD

D5

CP

_3.0

VV

DD

4

VD

D3

VD

D2

VD

D1

Fre

quen

cyC

ount

er

Dig

ital

Vol

t Met

er

Dig

ital

Vol

t Met

er

Dig

ital

Vol

t Met

erD

C P

OW

ER

DC

6.5

VD

EC

T T

este

rC

TS

60P

C

U-A

RT

L1R

50T

erm

inal

12 2W

OS

C

64


11.3. Adjustment Standard (Charger Unit)When connecting the simulator equipment for checking, please refer to below.

11.3.1. Bottom View

Note:(A) is referred to Check Point (Charger Unit) (P.51)

TP

4

TP

3

1

2

J1

D1

AF

1Pb

FP

QLV

30055P

QLV

30056

PQ

UP

11532Z

Charge-

Charge+

10 /2 W

DigitalVolt Meter

(A)

DC POWERDC 6.5 V

TP

3

TP

4 (GN

D)

65


11.4. The Setting Method of JIG (Handset)11.4.1. Preparation11.4.1.1. Equipment Required

• DECT tester: Rohde & Schwarz, CMD 60 is recommended.• Frequency counter: It must be precise enough to measure intervals of 1 Hz (precision; ±4 ppm).

Hewlett Packard, 53131A is recommended.• DC power: it must be able to output at least 1 A current under 2.4 V for Handset.• Digital multi-meter (DMM): it must be able to measure voltage and current.• Oscilloscope

11.4.1.2. JIG and PC• Serial JIG

JIG Cable: PQZZ1CD300E*• PC which runs in DOS mode.• Batch file CD-ROM for setting: PNZZTG8421E

Note:*: If you have the JIG Cable for TCD500 series(PQZZ1CD505E), change the following values of resis-tance. Then you can use it as a JIG Cable for both TCD300and TCD500 series. (It is an upper compatible JIG Cable.)

11.4.2. PC Setting11.4.2.1. Connections

Connect the DC Power or Battery to BATT+ and BATT-.

Connect the JIG cable GND (black) to GND.

Connect the JIG cable UTX (yellow) to UTX and URX (red) to URX.

Note:*: Com port names may vary depending on what your PC calls it.

Resistor Old value (kΩ) New value (kΩ)R2 22 3.3R3 22 3.3R4 22 4.7R7 4.7 10

66


11.4.2.2. Batch file Setting

Note:• “*****” varies depending on the country.

11.4.2.3. CommandsSee the table below for frequently used commands.

Command name Function Examplerdeeprom Read the data of EEPROM Type “rdeeprom 00 00 FF”, and the data from address

“00 00” to “FF” is read out.readid Read ID (RFPI) Type “readid”, and the registered ID is read out.writeid Write ID (RFPI) Type “writeid 00 18 E0 0E 98”, and the ID “0018 E0 0E

98” is written.getchk Read checksum Type “getchk”.wreeprom Write the data of EEPROM Type “wreeprom 01 23 45”. “01 23” is address and “45”

is data to be written.

67


11.5. Adjustment Standard (Handset)When connecting the simulator equipments for checking, please refer to below.

11.5.1. Component View

Note:(A) - (R) is referred to Check Point (Handset) (P.52)

A

PbF

PNLB1104ZKX-TGA840XX EU

C138

C71 C152 C70

RECEIVER

C139

SPEAKER

C29

C802C72

C813C811 C804

C73

C147

C121

C5

C3

F1

C76C77

C113

C54C40

C44 C834

C814C863C864

C43

C47

C83

C185

C35

C39

C110

4

5

1

X_CLK

POWER

1.8V

C128

C2

C1

C172

CP4.0V

CP2.5V

C111

C33

C6

C7

C837

C14C13

C38C332

C51C55

C53

C52

C49

R71

R209R208

R63R66

R64R225

R802

R805

R6

R74 R73 R31

R7

R30R4 R8

R45

R300R303R301R302R305

R12

R42R41R40

R32

R33 R25

R203

R807

R22

R28

R332

R330

R331

R306R304

R20

R307

L804

L802

L3

L9

L72

L73

L74L71

IC1

TEST

JTAG

RA61

BATT- BATT+

RA4

D21

D22

D14D13

BLK

REDB

LK

RE

D

D8

D7

D4 D3

Q4

Q7

Q11

Q12

Q2

C4

5

C3

6

C4

6 C8

60

C1

82

C8

19

C8

25

C8

27C

80

9C

81

0C

80

5

C808

C8

61

C8

12

C8

59

C8

62

C8

03

C8

06

CN

4

C7

4

C7

5

C4

C1

5

C1

50

C1

88

C9

7 C9

6

C8

22

C8

26

C4

1

X1

C8

20

C1

8 C1

1 C1

0C

12

C1

6

C3

31

C1

84

C1

7

C4

8

C5

0

C1

09

C8

2

32

11

4

85

1

C1

08

C8

6C1

27

R6

5

R8

08

R8

01

R8

06

R8

03

R8

04SP-PHO

NE_SPEAKER

R3

10

R3

09

R2

R2

15

R2

7

R1

52

R3

4

R3

08

R1

00

L8

01

L8

03

L5

L4

L8

IC801

IC3

RA

1

RA

2

DA

80

1D

1Q

9

UTX URX

GND

CHG (-)

CH

G (+

)

BAT

MIC- MIC+

OS

C

AF

VO

LTM

ET

ER

LO

OP

Sim

ula

tor

Du

mm

y B

ase

Un

it

6.3

V 4

7

F

6.3

V 4

7

F

AF

GE

NE

RAT

OR

DC

6.5

V

DC

PO

WE

R2

.30

-2.6

0V

DC

PO

WE

R2

.00

-2.2

5V

GN

D

Dig

ital

Vo

lt M

ete

rU

TX

UR

XG

ND

PC

GN

D

CL

K

Fre

qu

en

cyC

ou

nte

r

2.7

VZ

en

er

AF

OS

C

MIC

-

(D),

(E),

(F),

(G)

(A),

(B),

(C),

(F),

(G),

(H),

(I)

(A

),(Q

),(R

)

iH)

(I),

(J),

(K),

(L),

(M),

(N)

(O),

(P)

(O)

(O

),(P

)

MIC

++

+

60

0

10

0

GN

DA

NT D

EC

T T

est

er

CM

D6

0

(at

ba

tte

ry lo

w)

PO

WE

R K

EY

15

0

56

56

SP+REV-

REV+

SP-

8 1

F

AF

VO

LTM

ET

ER

Osc

illo

sco

pe

AB1

22

pF

Cu

rre

nt

Pro

be

Osc

illo

sco

pe

1.8

V

CP

2.5

V

CP

4.0

V

68


11.6. Things to Do after Replacing IC or X'talCautions:

Some of the content on this page may not apply to models from some countries.

11.6.1. Base UnitBefore making the following adjustment, ensure you have carried out PC Setting (P.61) in The Setting Method of JIG (BaseUnit).

Note:(*1) XX: country code, YY: revision number, ZZ: Voice Prompt“XX”, “YY” and “ZZ” vary depending on the country version. You can find them in the batch file, PQZZ- mentioned in JIG and PC(P.61).(*2) Refer to Check Point (Base Unit) (P.48)

Items Necessary AdjustmentBBIC (FLASH type)(IC7)

Programs for Voice processing, interface for RFand EEPROM

1. Make sure to connect the JIG cable, then detach the DCPower.

2. Execute the command “flw480 *********.hex”.3. Connect the DC Power.4. Press the PC Enter key once.5. After a few minutes, “Successful upgrade” is displayed

on the PC indicating downloading has finished.6. Detach the JIG cable, then disconnect the DC Power.7. Connect the DC Power.8. Connect the JIG cable again, and execute the command

“getchk”, then confirm the checksum value is correct.• If the downloading fails, start again from step 1.

9. Default batch file: Execute the command “default.bat”.10. Country version batch file: Execute the command

“TG8421XXrevYY.bat”. (*1)11. Clock adjustment: Refer to Check Point (G). (*2)

EEPROM (IC401) Adjustment parameter data(country version batch file, default batch file,etc.)

1. Change the address “0000” of EEPROM to “AA”.2. Default batch file: Execute the command “default.bat”.3. Country version batch file: Execute the command

“TG8421XXrevYY.bat”. (*1)4. Clock adjustment: Refer to Check Point (F). (*2)

FLASH (IC421) Voice prompt data(vary depending on country version)

1. Wait more than 15 seconds after connecting the JIGCable

2. Execute the command "VPDL2009 -57600 ZZ.bin"(*1)(writing time: aprox. About 1 min (57600bps).)

X'tal (X1) System clock 1. Refer to Check Point (F). (*2)

69


11.6.2. HandsetBefore making the following adjustment, ensure you have carried out PC Setting (P.65) in The Setting Method of JIG (Hand-set).

Note:(*3) XX: country code, YY: revision number“XX” and “YY” vary depending on the country version. You can find them in the batch file, PQZZ- mentioned in JIG and PC(P.61).

(*4) Refer to Check Point (Handset) (P.52)

Items Necessary AdjustmentBBIC (FLASH type)(IC1)

Programs for Voice processing, interface for RFand EEPROM

1. Make sure to connect the JIG cable, then detach the DCPower.

2. Execute the command “flw480 *********.hex”.3. Connect the DC Power.4. Press and hold the handset Power key.5. While holding down the handset Power key, press the PC

Enter key once.6. After a few minutes, “Successful upgrade” is displayed

on the PC indicating downloading has finished.7. Detach the JIG cable, then press the handset Power key

to turn it on.8. Connect the JIG cable again, and execute the command

"getchk”, then confirm the checksum value is correct.• If the downloading fails, start again from step 1.

9. Default batch file: Execute the command “default.bat”.10. Default batch file (remaining): Execute the Command

“TGA840DEFrevYY.bat”. (*3).11. Country version batch file: Execute the command

“TGA840XXrevYY.bat”. (*3).12. Clock adjustment: Refer to Check Point (H). (*4).13. 1.8 V setting and battery low detection: Refer to Check

Point (A), (F) and (G). (*4).EEPROM (IC3) Adjustment parameter data

(country version batch file, default batch file,etc.)

1. Default batch file: Execute the command “default.bat”.2. Default batch file (remaining): Execute the Command

“TGA840DEFrevYY.bat”. (*3)3. Country version batch file: Execute the command

“TGA840XXrevYY.bat”. (*3)4. Clock adjustment: Refer to Check Point (J). (*4)5. 1.8 V setting and battery low detection: Refer to Check

Point (A), (F) and (G). (*4)X'tal (X1) System clock 1. Refer to Check Point (H). (*4)

70


11.7. RF Specification11.7.1. Base Unit

*: Refer to Check Point (Base Unit) (P.48)

11.7.2. Handset

**: Refer to Check Point (Handset) (P.52)

Item Value Refer to -. *TX Power 19 dBm ~ 25 dBm Check Point (Base Unit) (J)Modulation -370±30/+370±30 kHz/div & Modulated

width 690 kHzCheck Point (Base Unit) (K)

Frequency Offset -50 kHz ~ +50 kHz Check Point (Base Unit) (L)Frequency Drift < ± 35 kHz / ms Check Point (Base Unit) (M)RX Sensitivity < 1000 ppm Check Point (Base Unit) (N)Timing Accuracy < ± 5.0 ppm/<±15.0ppm Check Point (Base Unit) (O)Power RAMP Power RAMP is matching Check Point (Base Unit) (P)

Item Value Refer to -. **TX Power 19 dBm ~ 25 dBm Check Point (Handset) (I)Modulation -370±30/+370±30 kHz/div & Modulated

width 690 kHzCheck Point (Handset) (J)

Frequency Offset -50 kHz ~ +50 kHz Check Point (Handset) (K)Frequency Drift < ± 35 kHz / ms Check Point (Handset) (L)RX Sensitivity < 1000 ppm Check Point (Handset) (M)Power RAMP Power RAMP is matching Check Point (Handset) (N)

71


11.8. How to Check the Handset Speaker or Receiver1. Prepare the digital voltmeter, and set the selector knob to ohm meter.2. Put the probes at the speaker terminals as shown below.

11.9. Frequency Table (MHz)

Note:Channel No. 10: In the Test Mode on Base Unit and Handset.

BASE UNIT HANDSETChannel No Transmit Frequency Receive Frequency Transmit Frequency Receive Frequency1 1897.344 1897.344 1897.344 1897.344 2 1895.616 1895.616 1895.616 1895.616 3 1893.888 1893.888 1893.888 1893.888 4 1892.160 1892.160 1892.160 1892.160 5 1890.432 1890.432 1890.432 1890.432 6 1888.704 1888.704 1888.704 1888.704 7 1886.976 1886.976 1886.976 1886.976 8 1885.248 1885.248 1885.248 1885.2489 1883.520 1883.520 1883.520 1883.520 10 1881.792 1881.792 1881.792 1881.792

72


12 Miscellaneous12.1. CPU Data (Base Unit)12.1.1. IC7 (BBIC)

Pin No. Description I/O Connection at Normal mode at Reset mode1 VSS_LNA1 - GND - -2 RF_RXp A.I RF_RXp A.I A.I3 RF_RXn A.I RF_RXn A.I A.I4 VSS_LNA2 - GND - -5 RFP1 D.O RXON O_0/1 Hi-Z6 RFP0 D.O ANT1 O_0/1 Hi-Z7 REF_RES A.O REF_RES A.O A.O8 AVS_XTAL - GND - -9 XTAL2 A.I XTAL2 A.I A.I

10 XTAL1 A.I XTAL1 A.I A.I11 AVD_XTAL - AVD_XTAL - -12 RF_SUPPLY1 - RF_SUPPLY1 - -13 LDO_CTRL A.O LDO_CTRL A.O O-114 AVD - AVD - -15 LSRn A.O LSRn A.O A.O16 LSRp A.O LSRp A.O A.O17 VREFm - VREFm - -18 MICh A.I MICh A.I A.I19 CIDOUT/MICn A.O CIDOUT A.O A.O20 CIDINn/MICp A.I CIDINn A.I A.I21 CIDINp/VREFp A.I CIDINp A.I A.I22 RINGp/P3_7 D.O N.C. O_0 O23 RINGn/P3_6 D.O HOOK O_0/1 O24 RINGOUT/RINGING/

P3_5A.O RINGING A.I A.I

25 PARADET/P3_4 A.I PARADET A.I A.I26 ADC0/P3_3 A.I ADC0 A.I A.I27 ADC1/INT0/P1_0 A.I ADC1 A.I A.I28 NTC/ADC2 - GND - A.I29 SOCp - GND - A.I30 SOCn - GND - A.I31 CHARGE_CTRL A.O N.C. A.O O-032 P1_7/CHARGE A.I CHARGE I I33 PAOUTp/P3_1 A.O PAOUTp A.O O-034 VDDPA - VDDPA - -35 PAOUTn/P3_0 A.O PAOUTn A.O O-036 VBAT1 - VBAT1 - -37 CP_C1x A.I/O N.C. A.I/O A.I38 CP_C2x A.I/O CP_C2x A.I/O A.I39 CP_C1y A.I/O N.C. A.I/O A.I40 VBAT2 - VBAT2 - -41 CP_C2y A.I/O CP_C2y A.I/O A.I42 CP_VOUT1/LED1 A.O CP_VOUT1 A.O A.O43 CP_VOUT2/LED2 A.O CP_VOUT2 A.O A.O44 PON/P1_6 D.I PullUp I_1 I45 VDD1 - +1.8V - -46 P2_7/BXTAL D.O TAM_WP O_0/1 O-147 P1_5/INT5/RDI/VDDE D.I ROW2 I_0/1 I-PU48 P1_4/INT4/TDOD D.I ROW1 I_0/1 I-PU49 P1_3/INT3/SIO D.I ROW0 I_0/1 I-PU50 P1_2/INT2/SK D.O KEY1 O_0/1 O-051 P1_1/INT1/LE D.O KEY0 O_0/1 O-052 P2_6/WTF_IN D.O KEY2 O_0/1 O-053 P0_7/SPI_DI D.I SPI_DI I_0/1 I-PU54 P0_6/SPI_DO D.O SPI_DO O_0/HighZ O-055 P0_5/SPI_CLK D.O SPI_CLK O_0/HighZ O-056 P0_4/SPI_EN D.O TAM_CSn O_0/HighZ O-157 P0_3/SCL2 D.O SCL2 O_0/HighZ O-058 P0_2/SDA2 D.I/O SDA2 I/O_0/HighZ O-0

73


59 P0_1/URX D.I URX I_0/1 -60 P0_0/UTX D.O UTX O_0/1 -61 RSTn D.O RSTn O_0/1 O62 JTAG D.I/O JTAG I/O_0/1 I-PU63 P2_5/PCM_FSC/SF D.O EEP_WP O_0 O_064 P2_4/SCL1/PCM_DO/

DP3D.O TEST O_0 O-0

65 P2_3/SDA1/PCM_DI/DP2 D.O N.C. O_0 O-066 P2_2/PCM_CLK/CLK100 D.O N.C. O_0 O-067 P2_1/ECZ2/PWM1/LED4 D.O LED2 A.I A.I68 P2_0/ECZ1/PWM0/LED3 D.O LED1 A.I A.I69 VDD2 - +1.8V - -70 LDORF_CTRL A.I LDORF_CTRL A.I A.I71 RF_SUPPLY2 - RF_SUPPLY2 - -72 RF0n D.O ANT2 O_0/1 Hi-Z73 RFP4 D.O PON O_0/1 Hi-Z74 RFP3 D.O PSEL O_0/1 Hi-Z75 VDD_PADR A.O VDD_PADRV A.O A.O76 VSS_PADR1 - GND - -77 RF_TXp A.O TXp A.O A.O78 RF_TXn A.O TXn A.O A.O79 VSS_PADR2 - GND - -80 RFP2 - TXON - Hi-Z81 GND - GND - -

Pin No. Description I/O Connection at Normal mode at Reset mode

74


12.2. CPU Data (Handset)12.2.1. IC1 (BBIC)

Pin No. Description I/O Connection at Normal mode at Reset mode1 VSS_LNA1 - GND - -2 RF_RXp A.I RF_RXp A.I A.I3 RF_RXn A.I RF_RXn A.I A.I4 VSS_LNA2 - GND - -5 RFP1 D.O RXON O_0/1 L6 RFP0 D.O ANT1 O_0/1 L7 REF_RES A.O REF_RES A.O A.O8 AVS_XTAL - GND - -9 XTAL2 A.I XTAL2 A.I A.I

10 XTAL1 A.I XTAL1 A.I A.I11 AVD_XTAL - AVD_XTAL - -12 RF_SUPPLY1 - RF_SUPPLY1 - -13 LDO_CTRL A.O LDO_CTRL A.O H14 AVD - +1.8V - -15 LSRn A.O LSRn A.O A.O16 LSRp A.O LSRp A.O A.O17 VREFm - GND - -18 MICh A.I MICh A.I A.I19 CIDOUT/MICn A.I MICn A.I A.I20 CIDINn/MICp A.I MICp A.I A.I21 CIDINp/VREFp A.O VREFp A.O -22 RINGp/P3_7 D.O COL4 O_0/1 L23 RINGn/P3_6 D.O COL3 O_0/1 L24 RINGOUT/RINGING/

P3_5D.O COL2 O_0/1 L

25 PARADET/P3_4 D.O COL1 O_0/1 L26 ADC0/P3_3 D.O COL0 O_0/1 L27 ADC1/INT0/P1_0 - N.C. - L28 NTC/ADC2 A.I ADC2 A.I A.I29 SOCp A.I SOCp A.I A.I30 SOCn A.I SOCn A.I A.I31 CHARGE_CTRL A.O CHARGE_CTRL A.O A.O32 P1_7/CHARGE A.I CHARGE A.I I-PD33 PAOUTp/P3_1 A.O PAOUTp A.O L34 VDDPA - VDDPA - -35 PAOUTn/P3_0 A.O PAOUTn A.O L36 VBAT1 - VBAT1 - -37 CP_C1x A.O CP_C1x A.O A.O38 CP_C2x A.O CP_C2x A.O A.O39 CP_C1y A.O CP_C1y A.O A.O40 VBAT2 - VBAT2 - -41 CP_C2y A.O CP_C2y A.O A.O42 CP_VOUT1/LED1 A.O CP_VOUT1 A.O A.O43 CP_VOUT2/LED2 A.O CP_VOUT2 A.O A.O44 PON/P1_6 A.I PON A.I L45 VDD1 - +1.8V - -46 P2_7/BXTAL D.O COL5 D.O L47 P1_5/INT5/RDI/VDDE - N.C. - L48 P1_4/INT4/TDOD D.I ROW0 D.I I-PD49 P1_3/INT3/SIO D.I ROW3 D.I I-PD50 P1_2/INT2/SK D.I ROW2 D.I I-PU51 P1_1/INT1/LE D.I ROW1 D.I I-PU52 P2_6/WTF_IN D.O KEY_LED D.O L53 P0_7/SPI_DI D.O EEPROM_WP D.O I-PU54 P0_6/SPI_DO D.O LCD_SDA D.O L55 P0_5/SPI_CLK D.O LCD_SCL D.O L56 P0_4/SPI_EN D.O LCD_CD D.O L57 P0_3/SCL2 D.O SCL D.O L58 P0_2/SDA2 D.I/O SDA D.I/O L59 P0_1/URX D.I URX D.I I-PU60 P0_0/UTX D.O UTX D.O L61 RSTn D.O RSTn D.O I-PU

75


62 JTAG D.I/O JTAG D.I/O I-PU63 P2_5/PCM_FSC/SF D.O LCD_CSB D.O I-PU64 P2_4/SCL1/PCM_DO/

DP3- N.C. - L

65 P2_3/SDA1/PCM_DI/DP2 - N.C. - L66 P2_2/PCM_CLK/CLK100 D.O LCD_RESET D.O L67 P2_1/ECZ2/PWM1/LED4 - N.C. - -68 P2_0/ECZ1/PWM0/LED3 D.I BELL_LED_A D.I I69 VDD2 - +1.8V - -70 LDORF_CTRL - N.C. - -71 RF_SUPPLY2 - RF_SUPPLY2 - -72 RF0n D.O ANT2 D.O L73 RFP4 D.O PON D.O L74 RFP3 D.O PSEL D.O L75 VDD_PADR A.O VDD_PADRV A.O -76 VSS_PADR1 - GND - -77 RF_TXp A.O TXp A.O -78 RF_TXn A.O TXn A.O -79 VSS_PADR2 - GND - -80 RFP2 D.O TXON D.O L81 GND - GND - -

Pin No. Description I/O Connection at Normal mode at Reset mode

76


12.3. How to Replace the Flat Package ICEven if you do not have the special tools (for example, a spot heater) to remove the Flat IC, with some solder (large amount), asoldering iron and a cutter knife, you can easily remove the ICs that have more than 100 pins.

12.3.1. Preparation• PbF (: Pb free) Solder• Soldering Iron

Tip Temperature of 700 °F ± 20 °F (370 °C ± 10 °C)Note: We recommend a 30 to 40 Watt soldering iron. An expert may be able to use a 60 to 80 Watt iron where someone withless experience could overheat and damage the PCB foil.

• FluxRecommended Flux: Specific Gravity → 0.82.Type → RMA (lower residue, non-cleaning type)Note: See About Lead Free Solder (Pbf: Pb free) (P.4)

12.3.2. How to Remove the IC1. Put plenty of solder on the IC pins so that the pins can be completely covered.

Note:If the IC pins are not soldered enough, you may give pressure to the P.C. board when cutting the pins with a cutter.

2. Make a few cuts into the joint (between the IC and its pins) first and then cut off the pins thoroughly.

3. While the solder melts, remove it together with the IC pins.

When you attach a new IC to the board, remove all solder left on the board with some tools like a soldering wire. If some solder isleft at the joint on the board, the new IC will not be attached properly.

77


12.3.3. How to Install the IC1. Temporarily fix the FLAT PACKAGE IC, soldering the two marked pins.

*Check the accuracy of the IC setting with the corresponding soldering foil.

2. Apply flux to all pins of the FLAT PACKAGE IC.

3. Solder the pins, sliding the soldering iron in the direction of the arrow.

12.3.4. How to Remove a Solder Bridge1. Lightly resolder the bridged portion.2. Remove the remaining solder along the pins using a soldering iron as shown in the figure below.

78


12.4. How to Replace the LLP (Leadless Leadframe Package) IC12.4.1. Preparation

• PbF (: Pb free) Solder• Soldering Iron

Tip Temperature of 700°F ± 20°F (370°C ± 10°C)Note:We recommend a 30 to 40 Watt soldering iron. An expert may be able to use a 60 to 80 Watt iron where someone with less experience could overheat and damage the PCB foil.

• Hot Air Desoldering ToolTemperature: 608°F ± 68°F (320°C ± 20°C)

12.4.2. Caution• To replace the IC efficiently, choose the right sized nozzle of the hot air desoldering tool that matches the IC package.• Be careful about the temperature of the hot air desoldering tool not to damage the PCB and/or IC.

12.4.3. How to Remove the Shield CaseNote:

If you don’t have special tools (ex. Hot air disordering tool), conduct the following operations.

1. Cut the case along perforation.

2. Remove the cut part.

3. Cut the four corners along perforation.

4. Remove the reminds by melting solder.

12.4.4. How to Install the Shield CaseNote:

• If you don’t have special tools (ex. Hot air disordering tool), conduct the following operations.• Shield case’s No. : PNMC1013Z

79


1. Put the shield case.

2. Solder the surroundings.

80


12.5. Terminal Guide of the ICs, Transistors and Diodes12.5.1. Base Unit

12.5.2. Handset

12.5.3. Charger Unit

81


Memo

82


13 Schematic Diagram13.1. For Schematic Diagram13.1.1. Base Unit (Schematic Diagram (Base Unit))Notes:

1. DC voltage measurements are taken with voltmeter from the negative voltage line.

2. The schematic diagrams may be modified at any time with the development of new technology.

13.1.2. Handset (Schematic Diagram (Handset))Notes:

1. DC voltage measurements are taken with an oscilloscope or a tester with a ground.2. The schematic diagram may be modified at any time with the development of new technology.

13.1.3. Charger Unit (Schematic Diagram (Charger Unit))Notes:

1. DC voltage measurements are taken with voltmeter from the negative voltage line.

2. The schematic diagram may be modified at any time with the development of new technology.

83


Memo:

84


13.2. Schematic Diagram (Base Unit)

3.0V

2.5V

TX _RF

TX _RF

RX _RF

BeepBell signal

GND

SPm

SPp

GND GND

GND

*C50

5N

C

*C50

2N

C

*SW1

NC

12

GND

NC

*C501

GND

+3.0V

100

R75

270k

*R425

UTX

URX

GND

ANT_1

AN

T2

NC

C85

4

AN

T1

GNDGND

ANT_2

GND

NC

C85

0

GND GND

0R511

0*R542

0*R516

0*RA501

1

2

3

4 5

6

7

8

1kR76

0*R532

ANT1_TPANT2_TP

GNDGND

GND

1uC61

6

GND

+3.0V

GND

AP1

*CN5 .

PARALLEL WIRE

GND

10k

R77R78

NC

GND

+2.5_CP

1uC62

5

*C50

3N

C

NC

C43

0

GND

CL1 CL2

GND

10p

C81

1

GND

100n

C80

8

GND

GND

GND

PON1k

R804

RF_RXp

RF_RXn

GND

GND

GND

TXp

GND

10p

C81

9

220

R806

GND

TXn

GND

PSEL

3.3n

C81

4

10p

C82

5

VDD_PADRV

TXON

1k

R803

GND

1PSET2VCCS3PI4PIX7 PSEL

8 POX

9 PO

10 VCC

11

GND

5PRAMP6 PAON

GND

GND

GND

RXON220

R807

10p

C80

9

GND

47R805

GND

10n

*C42

1

GNDGND

10k

*R424

NC*C423

GND

*Q421

VDD5

GND100n

*C422

560

*R42

6

560

*R42

7

560

*R42

8

3.3k

*R42

9GND

10k

*R13

5

GND

10R43

0

10p

C827

GND

GND

C85910p

10p

C85

5

10p

C85

7

100p

C85

6

100p

C85

8

10p

*C14

510

p

*C14

6

10p

C812

10p

C63

0

10p

C63

1

GND

GND

10100nC60

CLK

GN

D_C

*Q24NC

*C50

4N

C

GND

NC

C50

6

+1.8V

C83

7

NC

CN5-10

CN5-9

CN5-8

CN5-7

CN5-6

CN5-5

CN5-4

CN5-3

CN5-2

CN5-1

1.5p

C803

27n

L801

DA802

1 2

3

DA8011

23

10p

*C51

1

10p

*C51

2

10p

*C51

3

10p

*C51

4

10p

*C51

5

10p

*C51

6

C853

2p

1.8p

C80

4

1.8p

C80

2

Shi

eld

12

3

45

6

3nL802

3nL803

GND

C851

2p

10p

C82

2

3.3p

C80

5

3.3p

C80

6

2.2p

C81

0

2.2p

C81

3

VDD4

*C16

3

NC

10p

*C51

7

10p

*C51

8

10p

*C51

9

GND

C52

0

NC

GND

JTAG

3pC86

0

GND

10pC861

GND

1.5*R86

1.5*R87

220RA801

23

4

NC

*R13

2

2.2n

*C14

92.

2n

*C15

0

GNDGND

100p

C82

3

GND

0.9p

C826

0.75

p

C82

0

120

R80

2

0.5p

C83

4

1 *CE

2 SO

3 *WP

4 VSS 5SI

6SCK

7*HOLD

8VDD

1.5k

*R80

8

1.5k

*R80

1

SDA2SCL2TAM_CSnSPI_CLK

TAM_WP

KEY0KEY1

ROW1ROW2

KEY2

ROW0

LED1

CHARGE

TAM_WP

SPI_DISPI_DO

SPI_DO

TAM_CSn

SPI_DI

SPI_CLK

Low_Rad

LED2

ROW1

ROW2

KEY0

KEY1

KEY2

ROW0

RO

W0

for TG8421/6421

for TG6411/8411

CP_OUT1=3.0V

Pow_Adj

Pre-matching

Balun

BPF

W 0.15mmL 22+/-4mm1st or 4th layer



W 0.15mmL 5.0mm1st layer


W 0.15mmL 20+/-2mm3rd layer



W 0.125mmL 7.6mmGap 0.125mm1st layer

W 0.15mmL 4.0mm x2 1st layer

IC801

*IC421

(1)

(2)

(3)(4)

(5)

(7)

(6)

(8)

(9)

NC: No Components

85


1.8V 3.0V

TX _RF

RX _RF

TX _AF

Bell signalCaller ID

0.75V

0V

250mVp-p

Loop Current

Charge Current

RX_AF

Bell signal

GND

GND

Q8

1uC61

4

GND

+1.8V

GND

GN

D

GND

GND

56k FR615GND

GND

GND

SA

1

L1

L2

GND GND

J101

GND

GND

+8.0V

K2.

2u

C31

GND

4Fin

1ADJ/GND

3Input

2 Output

GND GND

GND

10k

R16 GND

GND

GND

GND

NC

(321

6)

R12

3

100k

R14

2.7k

R15

D3

4

1

3

2

GND GND

2.2kR17

GND

K2.

2u

*C16

27k

R18

GND

K2.

2u

C17

GND0.

1u

C28

100k

R27

K1u

C15

GND

TP10

100

R116

4700

p

C14

8.2k

R19

100k

R23

+1.8V

NC

C18

GND

GND

GND

GND

GND

NC

C24

NC

C57

47k

R24

GND

GND

12R21

GND

TP9

K0.

22u

C23

470k

R28

K0.

1u

C56

K0.

22u

C14

1

GND

GND

1u

C22

(1005) NC

C155

1kR33

1kR35

GND

GND10p

C136

GND

100k

R10

GND

+1.8V

GND

GND

100k

R8

100n

C72

100nC61

GND

3.3kR

81

3.3k

R11

7

+1.8V1n

C15

7

TP16

TP15

NC

*C48

NC

*C15

6

GND

GND

GND

3.9

R55

GND

GND

100n

C51

GND

GND

GND

100nC

75

NC

*D16 A

K

D1A

K

Q4

D23

NC

*D15

AK

+3.0V2.2u

C84

C306 NC1u

C305

GND

GND

1k

R130 10k

R12

9

3AF1

*R2

NC

D21

10kRA402

1

23

4

*Q23NC

*D5 A

K

*D6

AK

D9

AK

1u

C615

Q9

+2.5V

+2.5V

GND

F 14

0

R39

F 10

0

R38

220R106

220R109

NCC2

GND

C16

7

NC

VDD2

100nC7

100nC8

10pC65

+2.5_CP

C62

3N

C

L2TL1TL1R

DC

M

DC

P

L2R

C12

NC

10p

C13

7

GNDC

166 NC

100u

16

C32

5010

u

C27

*C49

NC

GND

10.368MX11 3

2

120

R29

NC

D26

ANT1

RF_RXn

RXON

TXON

TXn

TXp

VDD_PADRV

PSEL

PON

ANT2

RF_RXp

GND

C62

6N

C

1033

0u

C36

10k

R65

7

GND

GND

GNDGND

Q5

Q3

10p*C148

10p*C147

10pC170

10pC169

10pC168

10pC74

680pC9

500

680p

C10 500

1kRA1

1 2 3 45678

*C62

2N

C

D22

LINE_DC

NC

*R126

HAK_CL1

3.9

R56

TEST

VDD3VDD1

NC

C1

10pC171

120k

R36

C61

71u 10

5pC29

5pC30

C37 5p

1MR4

1MR6

180k

R3

180k

R5

C5

10n

10n

C6

10n

C42

10n

C43

4.7M

R42

4.7M

R43

680pC3

680pC4

33nC54

C55

82n

1k

R37 82kR32

82k

R34

820pC52

820p

C53

GND

10p

C70

1VSS_LNA12RF_RXp

21C

IDIN

p/V

RE

Fp

3RF_RXn4VSS_LNA25RFP16RFP07REF_RES8AVS_XTAL

22R

ING

p/P

3_7

23R

ING

n/P

3_6

24R

ING

OU

T/R

ING

ING

/P3_

5

25PA

RA

DE

T/P

3_4

26A

DC

0/P

3_3

27A

DC

1/IN

T0/P

1_0

28N

TC/A

DC

2

41 CP_C2y

42 CP_VOUT1/LED1

43 CP_VOUT2/LED2

44 PON/P1_6

45 VDD1

46 P2_7/BXTAL

81

GN

D

9XTAL210XTAL111AVD_XTAL12RF_SUPPLY113LDO_CTRL14AVD15LSRn16LSRp17VREFm18MICh19CIDOUT/MICn20CIDINn/MICp

29S

OC

p

30S

OC

n

31C

HA

RG

E_C

TRL

32P

1_7/

CH

AR

GE

33PA

OU

Tp/P

3_1

34V

DD

PA

35PA

OU

Tn/P

3_0

36V

BAT

1

37C

P_C

1x

38C

P_C

2x

39C

P_C

1y

40V

BAT

2

47 P1_5/INT5/RDI/VDDE

48 P1_4/INT4/TDOD

49 P1_3/INT3/SIO

50 P1_2/INT2/SK

51 P1_1/INT1/LE

52 P2_6/WTF_IN

53 P0_7/SPI_DI

54 P0_6/SPI_DO

55 P0_5/SPI_CLK

56 P0_4/SPI_EN

57 P0_3/SCL2

58 P0_2/SDA2

59 P0_1/URX

60 P0_0/UTX

61R

STn

62JT

AG63

P2_

5/P

CM

_FS

C/S

F64

P2_

4/S

CL1

/PC

M_D

O/D

P3

65P

2_3/

SD

A1/

PC

M_D

I/DP

266

P2_

2/P

CM

_CLK

/CLK

100

67P

2_1/

EC

Z2/P

WM

1/LE

D4

68P

2_0/

EC

Z1/P

WM

0/LE

D3

69V

DD

270

LDO

RF_

CTR

L71

RF_

SU

PP

LY2

72R

FP0n

73R

FP4

76V

SS

_PA

DR

1

79V

SS

_PA

DR

2

77R

F_TX

p

80R

FP2

75V

DD

_PA

DR

78R

F_TX

n

74R

FP3

*Q22

NC

*C25

0.01

u

5.6M

*R7

5.6M

*R9

*Q2

NC

(321

6)

*R12

4

NC

*R12

NC*R13

390

*R30

1.8k

*R31

1.8k*R20

27R

22

1 A0

2 A1

3 A2

4 VSS 5SDA

6SCL

7WP

8VCC

CH

AR

GE

SC

L2S

DA

2

EE

P_W

P

Low

_Rad

LED

2LE

D1

EE

P_W

P

DC_IN

Charge -

Charge +

TO RF BLOCK

IC1

*IC401

*IC7

(1)

(2)

(3)(4)

(5)

(7)

(6)

(8)

(9)

KX-TG8421/8422/8423/8424E SCHEMATIC DIAGRAM (Base Unit)

NC: No Components

86


13.3. Schematic Diagram (Base Unit_Operation)

ANS11 2

STOP1 2

ERASE1 2

MSG21 2

MSG11 2

RPT1 2

SKIP1 2

UP1 2

DOWN1 2

LOCAT/INT1 2

LED902AKLED901AK

MEG_LED

KEYIN2

KEYS_BANS_LED

KEYS_E

KEYS_C

KEYIN1

2APVCC

KEYIN3

KEYS_D

PCB

KX-TG8421/8422/8423/8424 SCHEMATIC DIAGRAM (Base Unit_Operation)

87


Memo

88


13.4. Schematic Diagram (Handset)

BATT+

BATT-

0.1R45

BATTERY

GND

CHG(+)

CHG(-)

R65

(

)

1kR66

5.6n

F1

D8(

)

100

R63

C36 (

)

C45 K0.1u

C121

(

)

C35

(

)

C15 (

)

+1.8V

3.3k

R22

GND

K1u

C47

W_LED-

W_LED+

GND

GND GND

GND

GND

GND

GND

GND

GNDGND

GND

GND

C44K0.1u

C48

(

)

C150(

)

GND

1.2kR7

100

R8

+1.8V

k0.1uC40

D10pC97

D10pC96

K0.01u

C14

RF_RXp

ANT2PON

PSEL

VDD_PADRVTXpTXn

TXON

RXONANT1

RF_RXn

2.2k

R25

0R215

Q7

Q2

C41( )

BATTERY

K0.1uC13

K0.1uC11

2

12

5

12

4

12

AS

T

12

SP

12

TALK

12

8

12

1

12

R

12

SO

FT

_A

12

3

12

9

12

SH

AR

P

12

SO

FT

_C

12

0

12

7

12

6

12

0R225

S1

1 2

3.3kRA4

1 234

R4

(

)

K1uC50

K1uC49

820R28

820R27

K1uC51

CP+4.0V

CP+4.0V

CP+2.5V

C3 (

)

C38( )

56k

R20

3F

10kR64

GND

CP+4.0V

GND

BATTERY

L4( )

L5( )

L8( )

C7( )

GND

C12K10u

D10

pC

184

C43

D10

p

C46D10p

C16

K10

u

3.9k

R2

GND_0

GND_0

C39

(

)

GND

6.3V330u

C2 CP2

Q9

10R20

D7

27kR30

C182(

)

1kR6

R31

(

)C147

(

)

0R12

C53K10u

C52K10u

D10pC17

D10pC18 VREFm

D1

1kR

A1

1 2 3 45678

1kRA2

123 4

GND

GND

27kR332

Q12

GND

K1uC332

BATTERY

GND

Q11

27kR331

1MR330

D10pC54

GND

D10pC55

GND

CP4.0V

PO

WE

R

CP2.5V

X_CLK(

)

C4

GND

K0.1uC5

GND

VREFm

C6

(

)

CP+2.5V

220R52

3.3kR53

1kR55

3.3kR50

K1u16V

C101

(

)

C10

3

K1uC27

K1u16V

C102

10kR54

(

)

C28 (

)

C10

7

GND

470R51

(

)

C10

6

C10

5(

)

25VK1uC100

C10

4

(

)

CN

31

Vss

CN

32

Vg

CN

33

XV

0

CN

34

V0

CN

35

Vcc

CN

36

Vss

CN

37

Vcc

CN

38

/CS

CN

39

IF3

CN

310

IF1/

IF2

CN

311

RS

T

CN

312

Vcc

CN

313

RS

(A0)

CN

314

SI

CN

315

Vcc

CN

316

SC

L

CN

317

Vm

CN

318

Vss

TEST

LED12

UTXURX

GND

BAT

JTAG

220

RA61

1

2 3

4

K1uC331

6.3V330u

C1CP1

82R71

SW1

1

2

3 6

5

4

7

8

X110.368M

132

LED1

LED

5

LED

6

LED

2

LED

3

LED

4

Q4

270R305

270R302

270R301

270R300

270R304

270R303

GND

C138

(

)

(

)

C139

D10pC29

1V

SS

_LN

A1

2R

F_R

Xp

21CIDINp/VREFp

3R

F_R

Xn

4V

SS

_LN

A2

5R

FP

16

RF

P0

7R

EF

_RE

S8

AV

S_X

TAL

22RINGp/P3_7

23RINGn/P3_6

24RINGOUT/RINGING/P3_5

25PARADET/P3_4

26ADC0/P3_3

27ADC1/INT0/P1_0

28NTC/ADC2

41C

P_C

2y

42C

P_V

OU

T1/

LED

1

43C

P_V

OU

T2/

LED

2

44P

ON

/P1_

6

45V

DD

1

46P

2_7/

BX

TAL

81

GND

9X

TAL2

10X

TAL1

11A

VD

_XTA

L12

RF

_SU

PP

LY1

13LD

O_C

TR

L14

AV

D15

LSR

n16

LSR

p17

VR

EF

m18

MIC

h19

CID

OU

T/M

ICn

20C

IDIN

n/M

ICp

29SOCp

30SOCn

31CHARGE_CTRL

32P1_7/CHARGE

33PAOUTp/P3_1

34VDDPA

35PAOUTn/P3_0

36VBAT1

37CP_C1x

38CP_C2x

39CP_C1y

40VBAT2

47P

1_5/

INT

5/R

DI/V

DD

E

48P

1_4/

INT

4/T

DO

D

49P

1_3/

INT

3/S

IO

50P

1_2/

INT

2/S

K

51P

1_1/

INT

1/LE

52P

2_6/

WT

F_I

N

53P

0_7/

SP

I_D

I

54P

0_6/

SP

I_D

O

55P

0_5/

SP

I_C

LK

56P

0_4/

SP

I_E

N

57P

0_3/

SC

L2

58P

0_2/

SD

A2

59P

0_1/

UR

X

60P

0_0/

UT

X

61 RSTn62 JTAG63 P2_5/PCM_FSC/SF64 P2_4/SCL1/PCM_DO/DP365 P2_3/SDA1/PCM_DI/DP266 P2_2/PCM_CLK/CLK10067 P2_1/ECZ2/PWM1/LED468 P2_0/ECZ1/PWM0/LED369 VDD270 LDORF_CTRL71 RF_SUPPLY272 RFP0n73 RFP4

76 VSS_PADR1

79 VSS_PADR2

77 RF_TXp

80 RFP2

75 VDD_PADR

78 RF_TXn

74 RFP3

LDO

_CT

RL

COL0

SOCnCHARGE_CTRL

SOCp

CHARGE

KE

Y_L

ED

COL3

COL4

COL5

RO

W0

COL1

COL2

RO

W2

RO

W1

RO

W3

RO

W2

RO

W1

JTAG

CH

AR

GE

CH

AR

GE

_CT

RL

URXUTX

BELL_LED

COL0COL1COL2COL3COL4

CO

L5

KE

Y_L

ED

LCD_CSB

LCD_RESET

LCD

_CD

LCD

_SD

ALC

D_S

CL

SO

Cn

RO

W3

RO

W0

LDO

_CT

RL

LCD

_SC

L

LCD

_SD

A

LCD

_CD

LCD

_RE

SE

T

LCD

_CS

B

SO

Cp

BE

LL_L

ED

To Charge Terminal

To Battery

WHITE LEDON LCD UNIT

KEY BACKLIT (Blue)

TO RF BLOCK

BELL LED(Amber)

To PA

To Color LCD Unit

LCD BACKLITWhite

*IC1

(1)

(2)(3)(4)

(5)

(7)(6)

(9)

(10)

(11)(12)

(13)

(14)

(8)

NC: No Components

Charge Current

0.75V

0V

250mVp-p

2.5V 4.0V

TX _RF

RX _RF

89


+1.8V

CN4

Headset Jack

1

4

2

3

5

100kR32

MIC-

MIC+

RECEIVER+

-

SP-PHONE_SPEAKER+

-

R100( )

D10pC71

D10pC83

D10pC72

D10pC73

D10pC113

C12

8(

)

C10

8(

) C82

K470p

K0.1u

C172

L72

10kR40

10kR41

GND

BATTERY

R152

(

)

GND

GND

0R208

0R209

C111

(

)

C109(

)

10kR42

D3

(

)21

D4

(

)21

C77 (

)

C76

(

)

VREFmVREFm1

VREFmVREFm

GNDGND

GND GNDGND

GND

VREFm

GND

RE2

64K

1A0

2A1

3A2

4GND

5SDA

6SCL

7WP

8VCC

CP+2.5V

C10K2.2u

L73( )

0

R33

100k

R34

100R306

VREFm1

C86

K10u

D21

D22

10L74

K1000pC127

R307( )

GNDVREFm1 VREFm

VREFmVREFm GNDGND

R309( )

R310( )

L9

VREFm1VREFm1

VREFm VREFm

K0.1uC33

K1000pC152

GND

GND

ANT_TP

GND

K1uC188

GNDGND

GNDGND

GND

L3( )

R308

L71

( )

K1000pC110

K1000pC185

GND

100n

C80

8220

R806

1PSET2VCCS3PI4PIX7 PSEL

8 POX

9 PO

10 VCC

11

GND

5PRAMP6 PAON

1k

R803

GND

RXON

GND

10p

C81

9

PON GND

10p

C80

9

GND

PSEL

RF_RXp

220

R807

1k

R804

VDD_PADRV

TXON

GND

10p

C812

10p

C827

TXp

GND

GND

GND

GND

47R805

TXn

GND GND

10p

C82

5

RF_RXn

GND

3.3n

C81

4

GND

GND

GND

10p

C81

1

GND

BATTERY

D13

D14

GNDGND

D10pC70

1.8V

2p

C80

4

2p

C80

2

1.5p

C803

27n

L801

C83

7

NC

GND

DA8011

23

SHIELD

1 2

3

456

3p

C86

1

L804

NC

GNDGND

2p

C826

0.7p

C82

0

10p

C82

2

CARBON_CL1

MIC AP11

2

10p

C86

0

3.6n

L802

3.6n

L803

1.6p

C81

0

1.6p

C81

3

3.3p

C80

5

3.3p

C80

6

0.5p

C86

2

C859

4p

D10pC864

D10

pC

863

GND

GND

R80

8(

)

GND

100

R80

2

0.5p

C83

4

R7482

R7382

D10pC74

D10pC75

VREFmVREFm

680

R80

1

VREFm

MICh

LSRpLSRp

LSRn

MICp

MICn

HEADSET_DET

(MAX500mA)

Balun

BPF

Pre-matching



W 0.125mmL 7.6mmGap 0.125mm1st layer




W 0.15mmL 4.0mm x21st layer

Test Pattarn for Carbon

Shield Case

IC3

IC801

(1)

(2)(3)(4)

(5)

(7)(6)

(9)

(10)

(11)(12)

(13)

(14)

(8)

KX-TGA840E SCHEMATIC DIAGRAM (Handset_Main)

NC: No Components

1.8V

RX_RF

TX_RF

TX _AF

RX-AF (Handset)

Sp-phone RX/Beep

90


13.5. Schematic Diagram (Charger Unit)

J1

2

1

TP3

G

TP2

TP1

TP4

R1 10

D1

A KF1

SCHEMATIC DIAGRAM (Charger Unit)

91


14 Printed Circuit Board14.1. Circuit Board (Base Unit_MAIN)14.1.1. Component View

C519

C520C518

C517

C511

C512

C513

C514C515

C516

C8

C4

C43

C17

C16

C15

C28

C25

C27

C42

C3

C2

C1

C861

C860

C811

C806

C827

C825C822

C163

C812 C804C803 C850

C854

C70

C823

C808C805C810

C51

C48C49

C157

C30

C31C506

C32C36

R21

R22

R10

R9

R28R27

R30 R31R124

R42R14

R123

R804R803

R805

R802

R808R511

R542

R657

R129R130

R56

R126

R801R532

L1

SA1

L801DA801

L803

IC801

IC1

D3

D5

D6

D9

Q3

Q22C

5

C9

C166C

12C

6 C10

C7

C859

C851

C853

C306

X1

SW

1

C802

C819

C834 C

809

C813

C505

C29

C37

C501

TE

ST

C502

C503

C504

C156

R17

R16

R6R55

R43

R5

R15

R3

R4

R8R

7

R109

R106

R806

R807

R39

R38

R132

R135

R516

L2

L802

IC401

RA

501

CN

5-1CN

5-2

CN

5-3CN

5-4

CN

5-5CN

5-6

CN

5-7C

N5

CN

5-8

CN

5-9CN

5-10

RA

402

DA

802D

1

Q4

Q23

Q24

KX-TG8421/8422/8423/8424 CIRCUIT BOARD (Base Unit_Main (Component View))

A

PN

LB1100Z A

NT

_2

AN

T_1

KX

-TG

8421/8411/6431T

G6421/6411/6401

145

F1 3.0A

8

E

E

1

E

PbF

FC

T

92


14.1.2. Bottom View

KX-TG8421/8422/8423/8424 CIRCUIT BOARD (Base Unit_Main (Bottom View))A

PN

LB11

00Z

CH

G

SP

L2TL1T

L1RL2R

1

80

EE

E

1

CLK

VD

D5

VD

D4

VD

D3

VD

D2

UTX

J101

RE

DW

HT

RE

DB

LK GN

D

AN

T1_T

PCL1

JTA

G

UR

X

4

E

DC

PbF

C421

C422C631

C625

C72

C137 C53C55

C54

C148

C423C84

C147

C826

C820

C305

C65C614

C61

VDD1

C617

C814

R76

R77R78

R75

R34

R81

R33

R37R36

R615

IC7SPp

DCP

DCM

SPmQ421

Q9

AN

T2_T

P

CL2

C62

3C

626

C15

5

LIN

E_D

C

C18

C22 C

56

C16

7

C14

1

C24

C23

C85

7

C85

6

C85

5

C52

C16

9C

170

C13

6

C17

1

C16

8

C14

9 C74

C83

7C

75

C14

5C

146 C15

0

C85

8

R20

R23

R18R

24R

116

R12

R13

R35

R32

R87

R86

L2R

L1R

L2T

L1T

BLK

YLW

RE

DG

RN

TP10

D23

D26

D21

Q2

C622

C14

C57

R19

R117

R29

R2

TP9

D22

D16

D15

Q5

GN

D_C

Q8

C61

5

C43

0

C60

C63

0

C61

6

R42

4R

425

R43

0

R42

6 R42

9

R42

8R

427

IC42

1

TP16

-sub

TP16

TP15

-sub

TP15

RA

80

RA

1

VDD11.8V

CLK(10.368MHZ)

VDD4(CP3.0V)

L2T

L1T

L1R

L2R

SP+

SP-

CHG-

DC+

DC-

GN

D

VD

D3

(3V

)

CP

2.5V

UR

XJI

G

UTX

VD

D2

(2.5

V)

CHG+

93


14.2. Circuit Board (Base Unit_Operation)14.2.1. Component View

ERASE

STOP

KEYS_E KEYS_C KEYS_B MEG_LEDKEYIN2

KEYS_D KEYIN3 KEYIN1 ANS_LED 2APVCC

ANS1

LOCAT/INT

A

DOWN

LED902

LED901

SKIPMSG1 MSG2RPT

UP

KX-TG7431/8421/8431HPNLB1092Z

PbF

KX-TG8421/8422/8423/8424 CIRCUIT BOARD (Base Unit_Operation (Component View))

94


14.3. Circuit Board (Handset)14.3.1. Component View

KX-TGA840 CIRCUIT BOARD (Handset_Main (Component View))

A

PbF


C138

C71C152C70

RECEIVER

C139

SPEAKER

C29

C802 C72

C813C811C804

C73

C147

C121

C5

C3

F1

C76 C77

C113

C54C40

C44C834

C814 C863 C864

C43

C47

C83

C185

C35

C39

C110

4

5

1

X_CLK

POWER

1.8V

C128

C2

C1

C172

CP4.0V

CP2.5V

C111

C33

C6

C7

C837

C14C13

C38C332

C51C55

C53

C52

C49

R71

R209 R208

R63R66

R64R225

R802

R805

R6

R74R73R31

R7

R30R4R8

R45

R300R303R301R302R305

R12

R42R41R40

R32

R33R25

R203

R807

R22

R28

R332

R330

R331

R306R304

R20

R307

L804

L802

L3

L9

L72

L73

L74 L71

IC1

TEST

JTAG

RA61

BATT-BATT+

RA4

D21

D22

D14 D13

BLK

RED

BLK

RE

D

D8

D7

D4D3

Q4

Q7

Q11

Q12

Q2

C45

C3

6

C46C8

60

C1

82

C8

19

C8

25

C8

27 C

80

9C

81

0C

80

5

C808

C8

61

C8

12

C8

59

C8

62

C8

03

C8

06

CN

4

C7

4

C7

5

C4

C1

5

C1

50

C1

88

C9

7C9

6

C8

22

C8

26

C4

1

X1

C8

20

C1

8C1

1C1

0C

12

C1

6

C3

31

C1

84

C1

7

C4

8

C5

0

C1

09

C8

2

32

11

4

85

1

C1

08

C8

6 C1

27

R6

5

R8

08

R8

01

R8

06

R8

03

R8

04 SP

-PH

ON

E_SP

EAKE

R

R3

10

R3

09

R2

R2

15

R2

7

R1

52

R3

4

R3

08

R1

00

L8

01

L8

03

L5

L4

L8

IC801

IC3

RA

1

RA

2

DA

80

1D

1Q

9

UTXURX

GND

CHG (-)

CH

G (

+)

BAT

MIC-MIC+

BATT+

CHG (+)MIC+

GNDBATBATT-

UTXURX

RCV-RCV+

CHG (-)

JIG

X_CLK(10.368MHZ)

SP+

MIC-

SP-

95


14.3.2. Bottom View

1

SP R

2

5

SW1

S1TALK

SOFT_CSOFT_A

3

4 6

7

CARBON_CL1MIC- MIC+

MIC

8 9

LED6 LED3

LED5 LED2

LED12

W_LE

D-

W_LE

D+

LED1LED4

0 #

KX-TGA840 CIRCUIT BOARD (Handset_Main (Bottom View))

CN3

118C102

C100

C104C

106C

107C

103C27 C105

R55

R54

R52

R51

R53

C28

C101

R50

A

PbF


96


14.4. Circuit Board (Charger Unit)14.4.1. Component View

14.4.2. Bottom View

J1R1

D1

A

PQ

UP

11532ZPb

F

PQ

LV30055

PQ

LV30056

CIRCUIT BOARD (Charger unit (Component View))

TP

4

TP

3

1

2

J1

D1

A

F1Pb

FP

QLV

30055P

QLV

30056

PQ

UP

11532Z

CIRCUIT BOARD (Charger unit (Bottom View))

TP4 (GND)

TP3

97


15 Exploded View and Replacement Parts List15.1. Cabinet and Electrical Parts (Base Unit)

Note:(*1) Attach the double side tape to the exact location described above.(*2) Refer to the spacer (No.109) of Cabinet and Electrical Parts (Handset) (P.98)

98


15.2. Cabinet and Electrical Parts (Handset)

Note:(*1) This cable is fixed by welding. Refer to How to Replace the Handset LCD (P.60).(*2) The rechargeable Ni-MH battery P03Por HHR-4MRE is available through sales route of Panasonic.(*3) Attach the spacer (No. 123) to the exact location described above.

99


15.3. Cabinet and Electrical Parts (Charger Unit)

100


15.4. Accessories and Packing Materials15.4.1. KX-TG8421EB/EM/EN

101


15.4.2. KX-TG8422EB/EM/EN

102



103



104


15.4.5. KX-TGA840EB/EM/EN

105


15.5. Replacement Part List1. RTL (Retention Time Limited)

Note:The “RTL” marking indicates that its Retention Time isLimited. When production is discontinued, this item will con-tinue to be available only for a specific period of time.This period of time depends on the type of item, andthe local laws governing parts and product retention.At the end of this period, the item will no longer beavailable.

2. Important safety noticeComponents identified by the mark indicates specialcharacteristics important for safety. When replacing anyof these components, only use specified manufacture’sparts.

3. The S mark means the part is one of some identical parts.For that reason, it may be different from the installed part.

4. ISO code (Example: ABS-94HB) of the remarks columnshows quality of the material and a flame resisting gradeabout plastics.

5. RESISTORS & CAPACITORSUnless otherwise specified;All resistors are in ohms (Ω) k=1000 Ω, M=1000 kΩAll capacitors are in MICRO FARADS (µF)p=µµF*Type & Wattage of Resistor

15.5.1. Base Unit15.5.1.1. Cabinet and Electrical Parts

15.5.1.2. Main P.C.Board PartsNote:

(*1) When replacing IC7, IC401 or X1, make the adjustmentusing PNZZTG8421E. Refer to Base Unit (P.68) of Thingsto Do after Replacing IC or X'tal.(*2) When you removing E1, use special tools (ex. Hot airdisordering tool).(*3) Backside of this IC has a ground plate.(*4) Supplied IC is Flat Package Type.

Safety Ref. No.

Part No. Part Name & Description Remarks

1 PNGP1050Y1 PANEL,LCD (for KX-TG8421EB)

ABS-HB

1 PNGP1050X4 PANEL,LCD (for KX-TG8421EM)

ABS-HB

1 PNGP1050X3 PANEL,LCD (for KX-TG8421EN)

ABS-HB

2 PNGG1035Z1 GRILLE (for KX-TG8421EB) ABS-HB2 PNGG1035Z2 GRILLE (for KX-TG8421EM/

EN)ABS-HB

3 PNKM1071Y1 CABINET BODY (for KX-TG8421EB)

ABS-HB

3 PNKM1071X3 CABINET BODY (for KX-TG8421EM)

ABS-HB

3 PNKM1071X2 CABINET BODY (for KX-TG8421EN)

ABS-HB

4 K2ECYZ000001 JACK,DC5 L0AD02A00026 SPEAKER6 PQHG10729Z RUBBER PARTS,SPEAKER7 PQHR11313Z GUIDE,SPEAKER ABS-HB8 PQJJ1T039Y JACK,MODULAR9 PNKE1028Z1 CASE,CHARGE TERMINAL (for

KX-TG8421EB)PS-HB

9 PNKE1028Z2 CASE,CHARGE TERMINAL (forKX-TG8421EM/EN)

PS-HB

10 PNHR1104Z OPTI CCONDUCTIVEPARTS,LED LENS

PS-HB

11 PNBC1023Z1 BUTTON,ERASE ABS-HB12 PNBC1266Y1 BUTTON,ANSWER ON ABS-HB13 PNBC1024Z1 BUTTON,STOP ABS-HB14 PNBC1025Z1 BUTTON,LOCATOR ABS-HB15 PNBC1018Z1 BUTTON,NAVIGATOR KEY (for

KX-TG8421EB)ABS-HB

15 PNBC1018Y5 BUTTON,NAVIGATOR KEY (forKX-TG8421EM)

ABS-HB

15 PNBC1018Y4 BUTTON,NAVIGATOR KEY (forKX-TG8421EN)

ABS-HB

16 PNHR1010Z GUIDE,BUTTON PS-HB17 PNBC1001Z2 BUTTON,MESSAGE (for KX-

TG8421EB/EM)AS-HB

17 PNBC1001Z5 BUTTON,MESSAGE (for KX-TG8421EN)

AS-HB

18 PNJK1047Z KEYBOARD SWITCH19 PNYE1011Z SPACER,ANTENNA20 PNJT1025Z CHARGE TERMINAL21 PNLA1002Z ANTENNA22 PNKF1054X1 CABINET COVER (for KX-

TG8421EB/EM)PS-HB

22 PNKF1054X2 CABINET COVER (for KX-TG8421EN)

PS-HB

23 PQHA10023Z RUBBER PARTS,FOOT24 PNGT1828Z NAME PLATE (for KX-

TG8421EB)24 PNGT1828X NAME PLATE (for KX-

TG8421EM)24 PNGT1828Y NAME PLATE (for KX-

TG8421EN)

Safety Ref. No.


PCB1 PNWP1G8421EH MAIN P.C.BOARD ASS'Y(RTL)

(ICs)IC1 C0CBAYG00016 IC IC7 C1CB00002906 IC (BBIC(FLASH))

(*1)(*3)(*4)S

IC401 PQWICD300EHR IC (EEPROM) (*1)IC421 C3FBMY000195 ICIC801 C1CB00001842 IC (*3)

(TRANSISTORS)Q3 B1ACGP000007 TRANSISTOR(SI)Q4 PQVTBF822T7 TRANSISTOR(SI)Q5 2SD0874AS TRANSISTOR(SI)Q8 B1ADGE000004 TRANSISTOR(SI)Q9 B1ADGE000004 TRANSISTOR(SI)Q421 2SC6054JSL TRANSISTOR(SI)

(DIODES)D1 B0JCME000035 DIODE(SI)

Safety Ref. No.


106


D3 B0EDER000009 DIODE(SI)D5 MA111 DIODE(SI) SD6 MA111 DIODE(SI) SD9 MA111 DIODE(SI) SD21 PQVDRLZ20A DIODE(SI) SD22 B0ECKM000008 DIODE(SI)D23 MA8220 DIODE(SI) SDA801 B0DDCD000001 DIODE(SI)DA802 B0DDCD000001 DIODE(SI)

(COILS)L1 PQLQXF330K COIL SL2 PQLQXF330K COIL SL801 G1C27NJ00010 COIL SL802 G1C3N0ZA0063 COILL803 G1C3N0ZA0063 COIL

(COMPONENT PARTS)RA1 D1H810240004 RESISTOR ARRAY SRA402 D1H410320002 RESISTOR ARRAYRA501 EXB28VR000X RESISTOR ARRAYRA80 D1H422120001 RESISTOR ARRAY

(VARISTOR) SA1 J0LF00000026 VARISTOR (SURGE

ABSORBER)

(RESISTORS)R3 PQ4R10XJ184 180k SR4 PQ4R10XJ105 1M SR5 PQ4R10XJ184 180k SR6 PQ4R10XJ105 1M SR7 ERJ3GEYJ565 5.6MR8 ERJ3GEYJ104 100kR9 ERJ3GEYJ565 5.6MR10 ERJ3GEYJ104 100kR14 ERJ3GEYJ104 100kR15 PQ4R10XJ272 2.7k SR16 ERJ2GEJ103 10kR17 ERJ2GEJ222 2.2kR18 ERJ2GEJ273X 27kR19 ERJ2GEJ822 8.2kR20 ERJ2GEJ182 1.8kR21 ERJ12YJ120 12R22 ERJ12YJ270 27R23 ERJ2GEJ104 100kR24 ERJ2GEJ473 47kR27 ERJ2GEJ104 100kR28 ERJ2GEYJ474 470k SR29 ERJ2GEJ121 120R30 ERJ3GEYJ391 390R31 ERJ3GEYJ182 1.8kR32 ERJ2GEJ823 82kR33 ERJ2GEJ102 1kR34 ERJ2GEJ823 82kR35 ERJ2GEJ102 1kR36 ERJ2GEJ124 120kR37 ERJ2GEJ102 1kR38 ERJ2RKF1000 100R39 ERJ2RKF1400 140R42 PQ4R10XJ475 4.7M SR43 PQ4R10XJ475 4.7M SR55 ERJ1TYJ3R9U 3.9R56 ERJ1TYJ3R9U 3.9R75 ERJ2GEJ101 100R76 ERJ2GEJ102 1kR77 ERJ2GEJ103 10kR81 ERJ2GEJ332 3.3kR106 ERJ2GEJ221 220R109 ERJ2GEJ221 220R116 ERJ2GEJ101 100R117 ERJ2GEJ332 3.3kR129 ERJ2GEJ103 10kR130 ERJ2GEJ102 1kR135 ERJ2GEJ103 10kR424 ERJ2GEJ103 10kR425 ERJ2GEJ274 270k

Safety Ref. No.


R426 ERJ2GEJ561 560R427 ERJ2GEJ561 560R428 ERJ2GEJ561 560R429 ERJ2GEJ332 3.3kR430 ERJ2GEJ100 10R511 ERJ2GE0R00 0R516 ERJ2GE0R00 0R532 ERJ2GE0R00 0R542 ERJ2GE0R00 0R615 D0GA563ZA006 56kR657 ERJ2GEJ103 10kR801 ERJ2GEJ152 1.5kR802 ERJ2GEJ121 120R803 ERJ2GEJ102 1kR804 ERJ2GEJ102 1kR805 ERJ2GEJ470 47R806 ERJ2GEJ221 220R807 ERJ2GEJ221 220R808 ERJ2GEJ152 1.5k

(CAPACITORS)C3 F1K2H681A008 680pC4 F1K2H681A008 680pC5 ECUV1C103KBV 0.01C6 ECUV1C103KBV 0.01C7 ECUV1C104KBV 0.1C8 ECUV1C104KBV 0.1C9 F1K2H681A008 680pC10 F1K2H681A008 680pC14 ECUE1E472KBQ 0.0047C15 PQCUV1A105KB 1C16 PQCUV1A225KB 2.2C17 PQCUV1A225KB 2.2C22 PQCUV1A105KB 1C23 ECJ0EB0J224K 0.22 SC25 ECUE1C103KBQ 0.01C27 F2A1H100B132 10C28 PQCUV1H104ZF 0.1 SC29 F1G1H5R0A480 5pC30 F1G1H5R0A480 5pC31 PQCUV1A225KB 2.2C32 F2A1C1010119 100C36 F2A1A3310040 330C37 F1G1H5R0A480 5pC42 ECUV1C103KBV 0.01C43 ECUV1C103KBV 0.01C51 ECUE1A104KBQ 0.1C52 ECUE1H821KBQ 820pC53 ECUE1H821KBQ 820pC54 ECUE1A333KBQ 0.033C55 ECUE1A823KBQ 0.082C56 ECUV1C104KBV 0.1C60 ECUE1A104KBQ 0.1C61 ECUE1A104KBQ 0.1C65 ECUE1H100DCQ 10pC70 ECUE1H100DCQ 10pC72 ECUE1A104KBQ 0.1C74 ECUE1H100DCQ 10pC75 ECUE1A104KBQ 0.1C84 ECUV1A225KB 2.2C136 ECUE1H100DCQ 10pC137 ECUE1H100DCQ 10pC141 ECJ0EB0J224K 0.22 SC145 ECUE1H100DCQ 10pC146 ECUE1H100DCQ 10pC147 ECUE1H100DCQ 10pC148 ECUE1H100DCQ 10pC149 ECUE1H222KBQ 0.0022C150 ECUE1H222KBQ 0.0022C157 ECUE1H102KBQ 0.001C168 ECUE1H100DCQ 10pC169 ECUE1H100DCQ 10pC170 ECUE1H100DCQ 10pC171 ECUE1H100DCQ 10p

Safety Ref. No.


107


15.5.1.3. Operational P.C.Board Parts

15.5.2. Handset15.5.2.1. Cabinet and Electrical Parts

15.5.2.2. Main P.C.Board PartsNote:

(*1) Reconfirm the model No. written on the handset’s nameplate when replacing PCB100. Because the model No. ofthe optional handset may differ from the included handset.(*2) When replacing IC1, IC3 or X1, make the adjustmentusing PNZZTG8421E. Refer to Handset (P.69) of Thingsto Do after Replacing IC or X'tal.(*3) When you removing E103, use special tools (ex. Hot airdisordering tool).

C305 ECUE0J105KBQ 1C421 ECUE1C103KBQ 0.01C422 ECUE1A104KBQ 0.1C511 ECUE1H100DCQ 10pC512 ECUE1H100DCQ 10pC513 ECUE1H100DCQ 10pC514 ECUE1H100DCQ 10pC515 ECUE1H100DCQ 10pC516 ECUE1H100DCQ 10pC517 ECUE1H100DCQ 10pC518 ECUE1H100DCQ 10pC519 ECUE1H100DCQ 10pC614 ECUV1A105KBV 1C615 ECUV1A105KBV 1C616 ECUV1A105KBV 1C617 ECUV1A105KBV 1C625 ECUV1A105KBV 1C630 ECUE1H100DCQ 10pC631 ECUE1H100DCQ 10pC802 F1G1H1R8A480 1.8pC803 F1G1H1R5A480 1.5pC804 F1G1H1R8A480 1.8pC805 F1G1H3R3A480 3.3pC806 F1G1H3R3A480 3.3pC808 ECUE1A104KBQ 0.1C809 ECUE1H100DCQ 10pC810 F1G1H2R2A480 2.2pC811 ECUE1H100DCQ 10pC812 ECUE1H100DCQ 10pC813 F1G1H2R2A480 2.2pC814 ECUE1H332KBQ 0.0033C819 ECUE1H100DCQ 10pC820 F1G1HR75A480 0.75pC822 ECUE1H100DCQ 10pC823 ECUE1H101JCQ 100pC825 ECUE1H100DCQ 10pC826 F1G1HR90A480 0.9pC827 ECUE1H100DCQ 10pC834 F1G1HR50A480 0.5pC851 F1G1H2R0A480 2pC853 F1G1H2R0A480 2pC855 ECUE1H100DCQ 10pC856 ECUE1H101JCQ 100pC857 ECUE1H100DCQ 10pC858 ECUE1H101JCQ 100pC859 ECUE1H100DCQ 10pC860 F1G1H3R0A480 3pC861 ECUE1H100DCQ 10p

(OTHERS)E1 PNMC1013Z CASE,MAGNETIC SHIELD(*2)E2 WBX10SH-3.5G LEAD WIRE, PARALLEL WIREX1 H0J103500027 CRYSTAL OSCILLATOR (*1) F1 K5H302Y00003 FUSE

Safety Ref. No.


PCB2 PNWP2G7431H OPERATIONAL P.C.BOARDASS'Y (RTL)

(DIODES)LED901 PQVDBR1111C LED SLED902 PQVDBR1111C LED S

Safety Ref. No.


101 PNGP1047Z1 PANEL,LCD (for KX-TGA840EB)

PMMA-HB

Safety Ref. No.


101 PNGP1047Z3 PANEL,LCD (for KX-TGA840EM)

PMMA-HB

101 PNGP1047Z2 PANEL,LCD (for KX-TGA840EN)

PMMA-HB

102 PNGG1032Z1 GRILL,FRAME (for KX-TGA840EB)

ABS-HB

102 PNGG1032Z2 GRILL,FRAME (for KX-TGA840EM/EN)

ABS-HB

103 PNYE1013Z TAPE,DOUBLESIDED104 PNGG1033Z1 GRILLE (for KX-TGA840EB) ABS-HB104 PNGG1033Y3 GRILLE (for KX-TGA840EM) ABS-HB104 PNGG1033Y2 GRILLE (for KX-TGA840EN) ABS-HB105 PNKM1069Z1 CABINET BODY (for KX-

TGA840EB)ABS-HB

105 PNKM1069Y3 CABINET BODY (for KX-TGA840EM)

ABS-HB

105 PNKM1069Y2 CABINET BODY (for KX-TGA840EN)

ABS-HB

106 PNHR1105Z OPTIC CONDUCTIVE-PARTS,LED LENS

PS-HB

107 L0AD01A00017 RECEIVER108 PQHG10729Z RUBBER PARTS,RECEIVER109 PNYE1011Z SPACER,LCD110 PNBX1047Z1 BUTTON,CURSOL KEY (for

KX-TGA840EB)ABS-HB

110 PNBX1047Y3 BUTTON,CURSOL KEY (forKX-TGA840EM)

ABS-HB

110 PNBX1047Y2 BUTTON,CURSOL KEY (forKX-TGA840EN)

ABS-HB

111 PNYT1013Z1 KEYBOARD SWITCH (for KX-TGA840EB)

111 PNYT1013Z3 KEYBOARD SWITCH (for KX-TGA840EM)

111 PNYT1013Y2 KEYBOARD SWITCH (for KX-TGA840EN)

112 PNBC1267Z1 PUSH BUTTON (for KX-TGA840EB)

112 PNBC1267Z2 PUSH BUTTON (for KX-TGA840EM/EN)

113 PNJT1026Z CHARGE TERMINAL(R)114 PNJT1027Z CHARGE TERMINAL(L)115 PQHR11315Z GUIDE,SPEAKER ABS-HB116 L0AA02A00095 SPEAKER117 PQHS10784Y SPACER,SPEAKER NET118 PQJC10056X BATTERY TERMINAL119 PNKE1027Z1 COVER,EP CAP (for KX-

TGA840EB/EM)119 PNKE1027Z3 COVER,EP CAP (for KX-

TGA840EN)120 PNKF1052Z1 CABINET COVER (for KX-

TGA840EB/EM)ABS-HB

120 PNKF1052Z2 CABINET COVER (for KX-TGA840EN)

ABS-HB

121 PNQT23182Z ATTENTION LABEL122 PNGT1829Z NAME PLATE (for KX-

TGA840EB)122 PNGT1829X NAME PLATE (for KX-

TGA840EM)122 PNGT1829Y NAME PLATE (for KX-

TGA840EN)123 PNHS1079Z SPACER,BATTERY124 PNKK1028Z1 LID,BATTERY (for KX-

TGA840EB/EM)ABS-HB

124 PNKK1028Z2 LID,BATTERY (for KX-TGA840EN)

ABS-HB

Safety Ref. No.


108


(*4) When replacing the handset LCD, See How toReplace the Handset LCD(P.60).(*5) Backside of this IC has a ground plate.(*6) Supplied IC is Flat Package Type.

Safety Ref. No.


PCB100 PNWPGA840EXR MAIN P.C.BOARD ASS'Y(RTL) (*1)(ICs)

IC1 C1CB00002906 IC (BBIC (FLASH)) (*2)(*5)(*6)

IC3 PQWIA130EXRR IC (EEPROM) (*2) IC801 C1CB00001842 IC (*5)

(TRANSISTORS)Q2 B1ADGE000004 TRANSISTOR(SI) Q4 B1ADGE000004 TRANSISTOR(SI) Q7 UN9219J TRANSISTOR(SI) SQ9 2SC6054JSL TRANSISTOR(SI) Q11 B1ADCF000161 TRANSISTOR(SI)Q12 B1ADCF000161 TRANSISTOR(SI)

(DIODES)D1 MA2YD2120L DIODE(SI) D7 B0JCME000035 DIODE(SI) D21 MA8043M DIODE(SI) SD22 MA8043M DIODE(SI) SDA801 B0DDCD000001 DIODE(SI)LED1 B3AEB0000124 LEDLED2 B3AEB0000124 LEDLED3 B3AEB0000124 LEDLED4 B3AEB0000124 LEDLED5 B3AEB0000124 LEDLED6 B3AEB0000124 LEDLED12 B3ACB0000216 LED

(COILS)L801 G1C27NJ00010 COILL802 G1C3N6ZA0063 COIL L803 G1C3N6ZA0063 COIL F1 PQLQR2M5N6K COIL S

(COMPONENTS PARTS)RA1 D1H810240004 RESISTOR ARRAY SRA2 D1H410220001 RESISTOR ARRAYRA4 D1H433220001 RESISTOR ARRAYRA61 D1H422120001 RESISTOR ARRAY

(VARISTORS)D13 D4ZZ00000024 VARISTOR D14 D4ZZ00000024 VARISTOR

(CONNECTORS)CN3 K1MN18BA0111 CONNECTORCN4 K2HD103D0001 CONNECTOR

(IC FILTERS)L9 J0JCC0000287 IC FILTER L72 J0JCC0000276 IC FILTER R308 J0JCC0000286 IC FILTER

(RESISTORS)R2 ERJ2GEJ392 3.9kR6 ERJ2GEJ102 1kR7 ERJ2GEJ122 1.2kR8 ERJ2GEJ101 100R12 ERJ2GE0R00 0R20 ERJ2GEJ100 10R22 ERJ2GEJ332 3.3kR25 ERJ2GEJ222 2.2kR27 ERJ2GEJ821 820R28 ERJ2GEJ821 820R30 ERJ3GEYJ273 27kR32 ERJ2GEJ104 100kR33 ERJ2GE0R00 0R34 ERJ2GEJ104 100kR40 ERJ2GEJ103 10kR41 ERJ2GEJ103 10kR42 ERJ2GEJ103 10kR45 ERJ6RSJR10V 0.1R50 ERJ2GEJ332 3.3k

R51 ERJ2GEJ471 470R52 ERJ2GEJ221 220R53 ERJ2GEJ332 3.3kR54 ERJ2GEJ103 10kR55 ERJ2GEJ102 1kR63 ERJ2GEJ101 100R64 ERJ2GEJ103 10kR66 ERJ2GEJ102 1kR71 ERJ3GEYJ820 82R73 ERJ2GEJ820 82R74 ERJ2GEJ820 82R203 D0GA563ZA006 56kR208 ERJ2GE0R00 0R209 ERJ2GE0R00 0R215 ERJ2GE0R00 0R225 ERJ2GE0R00 0R300 ERJ2GEJ271 270R301 ERJ2GEJ271 270R302 ERJ2GEJ271 270R303 ERJ2GEJ271 270R304 ERJ2GEJ271 270R305 ERJ2GEJ271 270R306 ERJ2GEJ101 100R330 ERJ2GEJ105X 1MR331 ERJ2GEJ273X 27kR332 ERJ2GEJ273X 27kR801 ERJ2GEJ681 680R802 ERJ2GEJ101 100R803 ERJ2GEJ102 1kR804 ERJ2GEJ102 1kR805 ERJ2GEJ470 47R806 ERJ2GEJ221 220R807 ERJ2GEJ221 220L74 ERJ2GEJ100 10

(CAPACITORS)C1 F2A0J3310067 330C2 F2A0J3310067 330C5 ECUE1A104KBQ 0.1C10 ECUV1A225KB 2.2C11 ECUE1A104KBQ 0.1C12 PQCUV0J106KB 10C13 ECUE1A104KBQ 0.1C14 ECUE1C103KBQ 0.01C16 PQCUV0J106KB 10C17 ECUE1H100DCQ 10pC18 ECUE1H100DCQ 10pC27 ECUE0J105KBQ 1C29 ECUV1H100DCV 10pC33 ECUE1A104KBQ 0.1C40 ECUE1A104KBQ 0.1C43 ECUE1H100DCQ 10pC44 ECUE1A104KBQ 0.1C45 ECUE1A104KBQ 0.1C46 ECUE1H100DCQ 10pC47 ECUV1A105KBV 1C49 ECUV1A105KBV 1C50 ECUV1A105KBV 1C51 ECUV1A105KBV 1C52 PQCUV0J106KB 10C53 PQCUV0J106KB 10C54 ECUE1H100DCQ 10pC55 ECUE1H100DCQ 10pC70 ECUE1H100DCQ 10pC71 ECUE1H100DCQ 10pC72 ECUE1H100DCQ 10pC73 ECUE1H100DCQ 10pC74 ECUE1H100DCQ 10pC75 ECUE1H100DCQ 10pC82 ECUE1H471KBQ 470pC83 ECUE1H100DCQ 10pC86 PQCUV0J106KB 10C96 ECUE1H100DCQ 10pC97 ECUE1H100DCQ 10p

Safety Ref. No.


109


15.5.3. Charger Unit15.5.3.1. Cabinet and Electrical Parts

15.5.3.2. Main P.C.Board Parts

15.5.4. Accessories and Packing MaterialsNote:

(*1) You can download and refer to the Operating Instruc-tions (Instruction book) on TSN Server.

15.5.4.1. KX-TG8421EB/EM/EN

15.5.4.2. KX-TG8422EB/EM/EN

C100 F1H1E1050001 1C101 ECUV1C105KBV 1C102 ECUV1C105KBV 1C110 ECUE1H102KBQ 0.001C113 ECUE1H100DCQ 10pC127 ECUE1H102KBQ 0.001C152 ECUE1H102KBQ 0.001C172 ECUV1C104KBV 0.1C184 ECUE1H100DCQ 10pC185 ECUE1H102KBQ 0.001C188 ECUE0J105KBQ 1C331 ECUE0J105KBQ 1C332 ECUE0J105KBQ 1C802 F1G1H2R0A480 2.0pC803 F1G1H1R5A480 1.5p C804 F1G1H2R0A480 2.0p C805 F1G1H3R3A480 3.3pC806 F1G1H3R3A480 3.3pC808 ECUE1A104KBQ 0.1C809 ECUE1H100DCQ 10pC810 F1G1H1R6A480 1.6pC811 ECUE1H100DCQ 10pC812 ECUE1H100DCQ 10pC813 F1G1H1R6A480 1.6p C814 ECUE1H332KBQ 0.0033C819 ECUE1H100DCQ 10pC820 F1G1HR70A480 0.7pC822 ECUE1H100DCQ 10pC825 ECUE1H100DCQ 10pC826 F1G1H2R0A480 2.0pC827 ECUE1H100DCQ 10pC834 F1G1HR50A480 0.5pC859 F1G1H4R0A480 4pC860 ECUE1H100DCQ 10pC861 F1G1H3R0A480 3pC862 F1G1HR50A480 0.5pC863 ECUE1H100DCQ 10pC864 ECUE1H100DCQ 10p

(OTHERS)MIC100 L0CBAY000032 MICROPHONE E101 L5DYDYY00003 LIQUID CRYSTAL DISPLAY

(*4)E102 PQLZ11015Z BACKLIGHT UNITE103 PNMC1013Z CASE,MAGNETIC SHIELD(*2) ABS-HBE104 PNLA1020Z ANTENNAE105 PNVE1002Z BATTERY TERMINALE106 PNJE1022Z SPECIAL SWITCHX1 H0J103500034 CRYSTAL OSCILLATOR (*2) SW1 K0C115A00007 SEESAW SWITCH

Safety Ref. No.


200 PNLC1007ZB CHARGER UNIT ASS'Ywithout NAME PLATE(for KX-TGA840EB) (RTL)

200 PNLC1007ZM CHARGER UNIT ASS'Ywithout NAME PLATE(for KX-TGA840EM) (RTL)

200 PNLC1007ZN CHARGER UNIT ASS'Ywithout NAME PLATE(for KX-TGA840EN) (RTL)

200-1 PNKM1076Z1 CABINET BODY (for KX-TGA840EB)

PS-HB

200-1 PNKM1076Y4 CABINET BODY (for KX-TGA840EM)

PS-HB

200-1 PNKM1076Y3 CABINET BODY (for KX-TGA840EN)

PS-HB

200-2 PNJT1010Z CHARGE TERMINAL 200-3 PNKF1012Z1 CABINET COVER (for KX-

TGA840EB/EM) ABS-HB

Safety Ref. No.


200-3 PNKF1012Z5 CABINET COVER (for KX-TGA840EN)

ABS-HB

200-4 PQHA10023Z RUBBER PARTS FOOT CUSHION201 PNGT1837Z NAME PLATE (for KX-

TGA840EB)201 PNGT1837X NAME PLATE (for KX-

TGA840EM)201 PNGT1837Y NAME PLATE (for KX-

TGA840EN)

Safety Ref. No.


PCB200 PQWPTGA721CH MAIN P.C.BOARD ASS'Y(RTL)

(DIODE)D1 B0JAME000095 DIODE(SI)

(JACK)J1 K2ECYB000001 JACK

(RESISTOR)R1 ERG2SJ100E 10

(FUSE)F1 K5H302Y00003 FUSE

Safety Ref. No.


A1 PQLV219EY AC ADAPTOR

A2 PQJA87S CORD TELEPHONE A3 PNQX1708Z INSTRUCTION BOOK (*1) A4 PNQW1548Z LEAFLET, QUICK GUIDE A5 PQQW15876Z LEAFLET, SMS GUIDE A6 PNKE1029Z1 HANGER,BELT CLIP (for KX-

TG8421EB/EM)ABS-HB

A6 PNKE1029Z3 HANGER,BELT CLIP (for KX-TG8421EN)

ABS-HB

P1 PNPM1002Z PROTECTION COVER (for BaseUnit)

P2 PQPH10088Z PROTECTION COVER (forHandset)

P3 PNPK1888Z GIFT BOX

Safety Ref. No.



A102 PQJA87S CORD,TELEPHONEA103 PNQX1708Z INSTRUCTION BOOK (*1)A104 PNQW1548Z LEAFLET, QUICK GUIDEA105 PQQW15876Z LEAFLET, SMS GUIDE A106 PNKE1029Z1 HANGER,BELT CLIP (for KX-

TG8422EB/EM)ABS-HB


ABS-HB


P102 PQPH10088Z PROTECTION COVER (for Hand-set)

P103 PQPH10101Z PROTECTION COVER (forCharger Unit)

P104 PNPK1889Z GIFT BOXP105 PNPD1154Z CUSHION

Safety Ref. No.


110


15.5.4.3. KX-TG8423EB/EM/EN

15.5.4.4. KX-TG8424EB/EM/EN

15.5.4.5. KX-TGA840EB/EM/EN

15.5.5. Screws

15.5.6. Fixtures and ToolsNote:

(*1) See The Setting Method of JIG (Base Unit) (P.61),and The Setting Method of JIG (Handset) (P.65).

O/NKXTG8421EBKXTG8421EMKXTG8424ENKXTG8422EBKXTG8422EMKXTG8422ENKXTG8423EBKXTG8423EMKXTG8423ENKXTG8424EBKXTG8424EMKXTG8424ENKXTGA840EBKXTGA840EMKXTGA840EN

Safety Ref. No.



A202 PQJA87S CORD, TELEPHONEA203 PNQX1708Z INSTRUCTION BOOK (*1)A204 PNQW1548Z LEAFLET, QUICK GUIDEA205 PQQW15876Z LEAFLET, SMS GUIDEA206 PNKE1029Z1 HANGER,BELT CLIP (for KX-

TG8423EB/EM)ABS-HB


ABS-HB





Safety Ref. No.



A302 PQJA87S CORD, TELEPHONEA303 PNQX1708Z INSTRUCTION BOOK (*1)A304 PNQW1548Z LEAFLET, QUICK GUIDEA305 PQQW15876Z LEAFLET, SMS GUIDEA306 PNKE1029Z1 HANGER,BELT CLIP (for KX-

TG8424EB/EM)ABS-HB


ABS-HB





Safety Ref. No.



A402 PNQX1737Z INSTRUCTION BOOK (*1)A403 PNKE1029Z1 HANGER,BELT CLIP (for KX-

TGA840EB/EM)ABS-HB

A403 PNKE1029Z3 HANGER,BELT CLIP (for KX-TGA840EN)

ABS-HB



P403 PNPK1893Z GIFT BOX

Safety Ref. No.


A XTB26+8GFJ TAPPING SCREWB XTB2+8GFJ TAPPING SCREW

Safety Ref. No.


PQZZ1CD300E JIG CABLE (*1)

PNZZTG8421E BATCH FILE CD-ROM (*1)

telephone equipment model no. kx-tg8421eb kx … equipment model no. kx-tg8421eb kx-tg8421em...

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