lg-lm-m1040 hifi schematic diagrams

- 1-1 -

[CONTENTS]

SECTION 1. GENERAL• SERVICING PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

• ESD PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

SECTION 2. ELECTRICAL SECTION• ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

• ELECTRICAL TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

• INTERNAL BLOCK DIAGRAM of ICs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-21

• BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33

• SCHEMATIC DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-35

• WIREING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-45

• PRINTED CIRCUIT DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-47

SECTION 3. EXPLODED VIEWS

• CABINET AND MAIN FRAME SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

• TAPE DECK MECHANISM (A/R & A/S : LEFT A/S DECK) . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3

• TAPE DECK MECHANISM (A/R & A/S : RIGHT A/R DECK) . . . . . . . . . . . . . . . . . . . . . . . . . .3-5

• CD MECHANISM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

SECTION 4. SPEAKER PART• SPEAKER PART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1

SECTION 5. REPLACEMENT PARTS LIST• REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1

- 1-2 -

SECTION 1. GENERAL SERVICING PRECAUTIONSNOTES REGARDING HANDLING OF THE PICK-UP1. Notes for transport and storage

1) The pick-up should always be left in its conductive bag until immediately prior to use.2) The pick-up should never be subjected to external pressure or impact.

2. Repair notes1) The pick-up incorporates a strong magnet, and so should never be brought close to magnetic materials.2) The pick-up should always be handled correctly and carefully, taking care to avoid external pressure and

impact. If it is subjected to strong pressure or impact, the result may be an operational malfunction and/ordamage to the printed-circuit board.

3) Each and every pick-up is already individually adjusted to a high degree of precision, and for that reasonthe adjustment point and installation screws should absolutely never be touched.

4) Laser beams may damage the eyes!Absolutely never permit laser beams to enter the eyes!Also NEVER switch ON the power to the laser output part (lens, etc.) of the pick-up if it is damaged.

5) Cleaning the lens surfaceIf there is dust on the lens surface, the dust should be cleaned away by using an air bush (such as usedfor camera lens). The lens is held by a delicate spring. When cleaning the lens surface, therefore, a cottonswab should be used, taking care not to distort this.

6) Never attempt to disassemble the pick-up.Spring by excess pressure. If the lens is extremely dirty, apply isopropyl alcohol to the cotton swab. (Donot use any other liquid cleaners, because they will damage the lens.) Take care not to use too much ofthis alcohol on the swab, and do not allow the alcohol to get inside the pick-up.

Storage in conductive bag Drop impact

NEVER look directly at the laser beam, and don’t let contact fingers or other exposed skin.

Magnet

How to hold the pick-up

Conductive Sheet

Cotton swab

Pressure

Pressure

- 1-3 -

NOTES REGARDING COMPACT DISC PLAYER REPAIRS1. Preparations1) Compact disc players incorporate a great many ICs as well as the pick-up (laser diode). These components

are sensitive to, and easily affected by, static electricity. If such static electricity is high voltage, componentscan be damaged, and for that reason components should be handled with care.

2) The pick-up is composed of many optical components and other high-precision components. Care must betaken, therefore, to avoid repair or storage where the temperature of humidity is high, where strong magnet-ism is present, or where there is excessive dust.

2. Notes for repair1) Before replacing a component part, first disconnect the power supply lead wire from the unit2) All equipment, measuring instruments and tools must be grounded.3) The workbench should be covered with a conductive sheet and grounded.

When removing the laser pick-up from its conductive bag, do not place the pick-up on the bag. (This isbecause there is the possibility of damage by static electricity.)

4) To prevent AC leakage, the metal part of the soldering iron should be grounded.5) Workers should be grounded by an armband (1M Ω)6) Care should be taken not to permit the laser pick-up to come in contact with clothing, in order to prevent sta-

tic electricity changes in the clothing to escape from the armband.7) The laser beam from the pick-up should NEVER be directly facing the eyes or bare skin.

CLEARING MALFUNCTIONYou can reset your unit to initial status if malfunction occur(button malfunction, display, etc.).Using a pointed good conductor(such as driver), simply short the RESET jump wire on the inside ofthe volume knob for more than 3 seconds.If you reset your unit, you must reenter all its settings(stations, clock, timer)

NOTE: 1. To operate the RESET jump wire, pull the volume rotary knob and release it.2. If you wish to operate the RESET jump wire, it is necessary to unplug the power cord.

Resistor(1 Mohm) Conductive

Sheet

Resistor(1 Mohm)

Armband

RESET jump wire

VOLUME

VOLUME KNOB

DOWN

UP

- 1-4 -

ESD PRECAUTIONSElectrostatically Sensitive Devices (ESD)Some semiconductor (solid state) devices can be damaged easily by static electricity. Such componentscommonly are called Electrostatically Sensitive Devices (ESD). Examples of typical ESD devices are integratedcircuits and some field-effect transistors and semiconductor chip components. The following techniques shouldbe used to help reduce the incidence of component damage caused by static electricity.

1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain offany electrostatic charge on your body by touching a known earth ground. Alternatively, obtain and wear acommercially available discharging wrist strap device, which should be removed for potential shock reasonsprior to applying power to the unit under test.

2. After removing an electrical assembly equipped with ESD devices, place the assembly on a conductive sur-face such as aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly.

3. Use only a grounded-tip soldering iron to solder or unsolder ESD devices.

4. Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static" cangenerate electrical charges sufficient to damage ESD devices.

5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ESDdevices.

6. Do not remove a replacement ESD device from its protective package until immediately before you areready to install it. (Most replacement ESD devices are packaged with leads electrically shorted together byconductive foam, aluminum foil or comparable conductive materials).

7. Immediately before removing the protective material from the leads of a replacement ESD device, touch theprotective material to the chassis or circuit assembly into which the device will by installed.

CAUTION : BE SURE NO POWER IS APPLIED TO THE CHASSIS OR CIRCUIT, AND OBSERVE ALLOTHER SAFETY PRECAUTIONS.

8. Minimize bodily motions when handing unpackaged replacement ESD devices. (Otherwise harmless motionsuch as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can gen-erate static electricity sufficient to damage an ESD device).

CAUTION. GRAPHIC SYMBOLS

THE LIGHTNING FLASH WITH APROWHEAD SYMBOL. WITHIN AN EQUILATERAL TRIANGLE, ISINTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF UNINSULATED “DAN-GEROUS VOLTAGE” THAT MAY BE OF SUFFICIENT MAGNITUDE TO CONSTITUTE A RISK OFELECTRIC SHOCK.

THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THESERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICELITERATURE.

- 2-1 -

SECTION 2. ELECTRICAL

ADJUSTMENTSThis set has been aligned at the factory and normally will not require further adjustment. As a result, it isnot recommended that any attempt is made to modificate any circuit. If any parts are replaced or if any-one tampers with the adjustment, realignment may be necessary.

IMPORTANT1. Check Power-source voltage.2. Set the function switch to band being aligned.3. Turn volume control to minimum unless otherwise noted.4. Connect low side of signal source and output indicator to chassis ground unless otherwise specified.5. Keep the signal input as low as possible to avoid AGC and AC action.

TAPE DECK ADJUSTMENT

1. AZIMUTH ADJUSTMENT

Figure 1. Azimuth Adjustment Connection Diagram

CH1 CH2

Speaker OutPlayback ModeHead

Test TapeMTT-114

L ch

R ch GND

Dual-tracesynchroscope

ElectronicVoltmeter

L out

R out

Unit

Deck Mode Test Tape Test Point Adjustment Adjust for

Palyback MTT-114 Speaker OutDECK Screw

MaximumAzimuth Screw

- 2-2 -

ELECTRICAL TROUBLESHOOTING GUIDE

AUDIO PART

P-SENS PART

Does +6V appear at pin7 of PN514

Check the pattern of IC301 Pin 26.

Check the waveform of D913(+).

Check R943 and replace ZD901.

Replacement D913

VKK PART

Does DC-33V appear at PN514 pin3.

Check the voltage of IC301 pin51

Replace Q903

Refer to power circuit

Dose -33V appear at ZD902(-)

Check Q903 TURN ON

Check the pattern

Replace D912, D911

END

ZD902 replacement

Check the -33V(Lower) of C916

NO

NO

NO

NO

NO

NO

YES

YES

YES

YES

YES

YES

- 2-3 -

SMPS CIRCUIT

Check the Fuse

Check the DC Output of C942, C944

Check the DC output of C755, C956,C957 (12V) (6.2V) (-32V)

Check the output of C949(5V)

OK

Check the D940, D941

Replace the D940, D941

Check the DC output of IC941, C958

Replace the D947, D956, D955

Replace the F940.

Replacement the IC901

NO

NO

NO

NO

NO

YES

YES

YES

YES

YES

- 2-4 -

Muting circuit Troubleshooting (if MUTE)

Does “Low” appear at Q602 “B”

Q701, Q751(IC302) Base “LOW” check

MUTE

Check pin2 of troubleshooting

Check the connector of Q602 “B” & GND

Refer to “IC601 Troubleshooting”.


Check pin5 IC501.


Audio abnormal

Check the output of IC601 pin24, 25

Check pin 6, 10 of IC401

Check pin 1, 7 of IC602

Check pin13 of IC700

Check MUTE

NO

NO

NO

NO

NO

NO

YES

YES

YES

YES

YES

YES

- 2-5 -

AUX

Check the signal input of IC601, pin29, 36

Check the signal input of JK600

FUNCTION MODE AUDIO ABNORMAL

TAPE

Check the signal input of IC601 pin28, 37

Refer IC14 Troubleshooting

CD

Check the signal input of IC601 pin31, 34

Check the signal of CN513 pin1, 3 or Refer to CD Troubleshooting

TUNER

Check the signal input of IC601 pin30,35

Refer to TUNERMODULE

MIC

Check pin4 of PN401

Refer to IC404 Troubleshooting

Refer to IC601 troubleshootingYES

NO


NO


NO


NO


NO

- 2-6 -

IC301 Troubleshooting

Check the power supplying IC301 pin17, 46, 90?

Check the 5V of IC301 pin26

Check the oscillation of X301.

Check the “Low”“High” of IC301 pin17when power supplied

Replace IC301

Refer to power circuit Troubleshooting.

Check the P-SENS

Replace X301

Check the RESET circuit


Check the power supplied to IC501 pin16

Check the CLK Data of IC501 pin2, 3

Check the CONTROL function

END



IC501 replace Check the pattern of IC301 & IC501

Check the Data of IC301 pin3, 4(CDTAPE FUNCTION)

YES

YES

YES

YES

YES

YES

YES

NO

NO

NO

NO

NO

NO

NO

NO

- 2-7 -


Check the power supplied to IC601 pin39

IC601 7,22 Pin waveform output check

Check the waveform input of IC601 pin8, 21

Check the waveform output of IC601 pin12, 17

END

Check the Pulse waveform of IC601 pin21,22(VOL DIAL)

Refer to “power circuit troubleshooting”.

Check the IC301 pin76, 75, 5, 10

Replacement IC601

Check the PATTERN of MICOM(82, 83) & IC(21, 22)Replace the IC601

Refer the “IC301Troubleshooting”


Check the signal input of 11, 15

Check the power of pin1, 5(+) pin6, 17

Check the signal Output of pin 5, 7

END

Refer to “Muting Troubleshooting”.

Refer to “SMPS Troubleshooting”.

Check pin13 appear + 0.5VYES

YES

YES

YES

YES

YES

YES

YES

YES

NO

NO

NO

NO

NO

NO

NO

NO

- 2-8 -

PLAY check

Check the VCC supply to IC202 pin18

Check the signal output of IC202 pin5, 20

Check the Muting circuit


Check the Deck Mechanism

Replace the Deck Mechanism

Replacement IC202

Dubbing check ("NORMAL or REC"//"HIGH")

Q252, 202 "OFF"//"ON" : R273,223 "Low"//"HIGH"

Q253,203 "ON"//"OFF"

Refer to REC Troubleshooting

Refer IC203 Troubleshooting

YES

YES

YES

YES

YES

NO

NO

NO

NO

- 2-9 -

REC (Q252, Q202 ON : R273, R223 High)

Check signal supplied to IC202 pin11, 14?

Chek the output of IC202 pin9, 16

Check the IC201 pin6:12V and pin 4: High

Check the oscillation of L203 pin2, 3

Replacement the DECK

Check the “Low” of Q253 Q203 “B”

Replacement Q253,Q203


Check the Vcc power of IC202 pin18

Check the power or Refer to IC203 Troubleshooting

Check power supplying to C236(+)

Refer to power circuitTroubleshooting.

Refer to IC203 Troubleshooting.

Replace the Q208

Replace the L203

Check the 0.6V of Q208 “B”

Check the “Low” of Q208 “C”

Replace Q207

END

NO

NO

NO

NO

NO

NO

NO

NO

NO

YES

YES

YES

YES

YES

YES

YES

YES

YES

- 2-10 -

CD PART

TURN ON CD

CONNECTOR CHECK ( PN808,PN807 )

CHECK POWER SUPPLY CIRCUIT( PN808 )

CHECK MICOM INTERFACE CIRCUIT( PN807 )

CHECK MICOM INTERFACE CIRCUIT( PN807 )

CONNECTOR CHECK(PN801,PN802)

CHECK PICKUP MOVEMENT

CHECK BA5810FP (IC803)

CHECK MN6627933CG (IC801)

CHECK AN22004 (IC802)

CONNECTOR CHECK (PN808)

CONNECTOR CHECK( PN808,PN807,PN802,PN801 )

OPEN CLOSE CHECK

“ READING ”DISPLAY CHECK

READING OK CHECK

IF PLAY, AUDIOOUTPUT CHECK

OK

YES

YES

YES

YES

YES

NO

NO

NO

NO

- 2-11 -

OPEN CLOSE NG

NO

NO

NO

NO

CONNECTOR LOCKING CHECK ( PN808,PN807 )

DEFECTIVE MAINPOEWR SUPPLY

DEFECTIVE MICOM

DEFECTIVE IC803

DEFECTIVEMECHANISM

CHECK POWER SUPPLY CIRCUIT( PN808 ,PN807)PN808 PIN 5 = 6.2V, PIN 7 = 5V

PN807 PIN 1 = 5V

CHECK VOLTAGE CHANGE OF OPEN CLOSE ,AND BTLMUTE VOLTAGE(= 5V)

(PN807 PIN 20:OPEN, 19:CLOSE, 4:BTLMUTE)

CHECK VOLTAGE CHANGE LO+, LO- OF IC803(PN807, PIN OPEN:20, CLOSE:19)

YES

YES

YES

- 2-12 -

READING DISPLAY CHECK (= ONLY “CD “DISPLAY)

CONNECTOR LOCKING CHECK(PN808,PN807,PN802,PN801 )

DEFECTIVE CONNECTOR ORMAIN POWER SUPPLAY

DEFECTIVE IC805

DEFECTIVE MICOM OR CONNECTOR

CHECK RESET SIGNAL OF PN807PN807 PIN12 : 5V

CHECK VOLTAGE THE PIN 2 OF IC805IC805 PIN2 : 3.3V

DEFECTIVE MICOM OR CONNECTOR

DEFECTIVE IC801

CHECK MICOM INTERFACECIRCUIT( PN807 )

PN807 PIN 11,13,14,15 SIGNAL CHECK(11: STAT, 13: MDATA, 14:MCLK, 15:MLD)

CHECK THE WAVE FORM #1

CHECK POWER SUPPLYPORT( PN808 ,PN807)

PN808 PIN 5 = 6.2V, PIN 7 = 5VPN807 PIN 1 = 5V

YES

YES

NO

NO

NO

NO

NO

YES

YES

YES

- 2-13 -

AAAA

BBBB

CCCC

DDDD

EEEE

READING OK CHECK (= “NO DISC” DISPLAY)

CONNECTOR LOCKINGCHECK(PN801,PN802)

DOES SLED MOVE ?

DOES LENSE MOVE ?(= UP & DOWN)

DOES LASER LIGHT ?

DOES SPINDLE ROTATE ?

IS READING OK ?

CHECK PN801 PIN 14,15 (TA- ,TA+)

CHECK PN802 PIN 5,6( SP+,SP-)

CHECK PN802 PIN 10( LD )

CHECK PN801 PIN 13,16( FA-, FA+)

CHECK PN802 PIN 3,4( SL+,SL-) DEFECTIVE PICKUP ORIC803 OR IC801 OR IC802

DEFECTIVE PICKUP OR IC803 OR IC801

DEFECTIVE PICKUP ORIC802

DEFECTIVE PICKUP OR IC803

DEFECTIVE PICKUP OR IC803 OR IC801 OR IC802

NO

NO

NO

NO

NO

YES

YES

YES

YES

YES

- 2-14 -

AAAA

READING OK CHECK #A (= “NO DISC” DISPLAY)

DOES SL+ WAVEFORM APPEAR AT( IC803 PIN14 AND PN802 PIN3)

WAVEFORM #2SLED MOTOR WAVE

DOES SLIN WAVEFORM APPEAR AT

( IC803 PIN 5)WAVEFORM #2

SLED DRIVE WAVE

DEFECTIVE IC801

CHECK PN802 CONNECTOR LINE

DEFECTIVE IC803

DEFECTIVE PN802CONNECTOR

DEFECTIVE PICKUP SLED MOTOR

NO

NO

NO

NO

NO

YES

YES

- 2-15 -

BBBB

READING OK CHECK #B (= “NO DISC” DISPLAY)

NO

NO

NO

NO

NO

YES

YES

DOES FA+ WAVEFORM APPEAR AT( IC803 PIN15 AND PN801 PIN16)

WAVEFORM #3FOCUS COIL DRIVE WAVE

DOES FAIN- WAVEFORM APPEAR AT


FOCUS DRIVE WAVE

DEFECTIVE IC801

DEFECTIVE IC803

DEFECTIVE PN801CONNECTORCHECK PN801 CONNECTOR LINE

DEFECTIVE PICKUP FOCUS ACTUATOR

- 2-16 -

CCCC

CCCC

READING OK CHECK #C (= “NO DISC” DISPLA)

IS ?V APPLIED TO PIN10 OF PN801

LASER SUPPLY VOLTAGE CHECK

IS 3.3 V APPLIED TO PIN3 OF IC802

RF IC SUPPLY VOLTAGE CHECK

IS 2.0 V PIN2 OF IC802LASER CONTROL VOLTAGE CHECK

DEFECTIVE IC805

DEFECTIVE IC802


DEFECTIVE Q801 OR D811


DEFECTIVE PICKUP LASER PART

NO

NO

NO

NO

NO

NO

YES

- 2-17 -

DDDD

READING OK CHECK #D (= “NO DISC” DISPLAY)

NO

NO

NO

NO

NO

YES

DOES SP+ WAVEFORM APPEAR AT( IC803 PIN12 AND PN802 PIN6)WAVE-

FORM #4SPINDLE MOTOR DRIVE WAVE

DOES SPIN WAVEFORM APPEAR AT( IC803 PIN 6)

WAVEFORM #4SPINDLE DRIVE WAVE

DEFECTIVE IC801

DEFECTIVE IC803


DEFECTIVE PICKUP SPINDLE MOTOR


- 2-18 -

EEEE

READING OK CHECK #E (= “NO DISC” DISPLAY)

DOES TA+ WAVEFORM APPEAR AT( IC803 PIN17 AND PN801 PIN15)

WAVEFORM #5TRACKING COIL DRIVE WAVE

DOES TAIN- WAVEFORM APPEAR AT


TRACKING DRIVE WAVE

DEFECTIVE IC801

DEFECTIVE IC803




DEFECTIVE IC801


DOES ARF SIGNAL APPEAR?(IC802 PORT 8)WAVEFORM #6

DOES FE, TE SIGNAL APPEAR?(IC802 PORT FE:23, TE:21)

WAVEFORM #6

NO

NO

NO

NO

NO

NO

NO

YES

YES

YES

- 2-19 -

• WAVEFORMS OF MAKOR CHECK POINT

- 2-20 -

#4. SPINDLE DRIVE AND MOTOR WAVEFORM(IC503 pin6, 1 2) when TOC reading

#5. TRACK DRIVE AND MOTOR WAVEFORM(TP560, IC503 pin23) during normal play

#6. RF, TRACKING AND FOCUS ERROR WAVEFORM(IC502 pin8, 2 1 , 23) during normal play

- 2-21 -

INTERNAL BLOCK DIAGRAM of ICs

• KIA6289N (IC14)BLOCK DIAGRAM

- 2-22 -

- 2-23 -

• BA3126N (IC201)2-channel head switch for radio cassette recorders

- 2-24 -

• BU2090F (IC501)12-bit, Serial IN, Parallel OUT driver

• NJM2155 (IC401)BLOCK DIAGRAM & PIN CONFIGRATION

Control circuit

12-bit shift register

Latch

Output buffer(open drain)

1Vss

2DATA

3CLOCK

4Q0

5Q1

6 Q2

7Q3

8Q4

16 VDD

15 Q11

14 Q10

13 Q9

12 Q8

11 Q7

10 Q6

9 Q5

Block diagram

- 2-25 -

Pin No. Pin name FunctionBU2090/F/FS BU2092/F BU2092/FV

1 1 1 Vss GND2 2 2 DATA Serial data input3 3 3 CLOCK Data shift clock input- 4 4 LCK Data latch clock input4 5 5 Q0 parallel data output5 6 6 Q1 parallel data output6 7 7 Q2 parallel data output7 8 8 Q3 parallel data output8 9 9 Q4 parallel data output9 10 10 Q5 parallel data output10 11 11 Q6 parallel data output- - 12 N.C. Not connected- - 13 N.C. Not connected

11 12 14 Q7 parallel data output12 13 15 Q8 parallel data output13 14 16 Q9 parallel data output14 15 17 Q10 parallel data output15 16 18 Q11 parallel data output- 17 19 OE Output Enable

16 18 20 VDD Power supply

• TDA-7429T (IC601)PIN CONNECTION (TQFP44)

1

2

3

5

6

4

7

8

9

10

17

11

18 19 20 21 22

44 43 42 41 3940 38 37 36 35 34

28

27

26

24

23

25

33

32

31

29

30

VAR_L

REARIN

REAROUT

HP1

LP1

HP2.

BASS_LI

BASS_LO

BASSO_R

BASSO_L

VAR_R

BA

SS

_RO

BA

SS

_RI

MID

DLE

_LO

MID

DLE

_LI

MID

DLE

_RI

MID

DLE

_RO

TR

EB

LE_R

TR

EB

LE_L

AG

ND

SD

A

SC

L

LP PS

1

PS

2

PS

3

VS

PS

4

CR

EF

R_I

N4

R_I

N3

R_I

N2

R_I

N1

L_IN4

AUXOUT_L

AUXOUT_R

R_OUT

DIG_GND

L_OUT

MONITOR_L

MONITOR_R

L_IN1

L_IN3

L_IN2

D96AU532

12 13 14 15 16

- 2-26 -

Block diagram

- 2-27 -

• KIA4558P/S (IC602)BIPOLAR LINEAR INTEGRATED CIRCUIT

- 2-28 -

• STK-403-120 (IC700)

- 2-29 -

• BA5810FP (IC803)

- 2-30 -

• KA3082 (IC807)Bi-Directional DC Motor Driver

DescriptionThe KA3082 is a monolithic integrated circuit designed for driving bi-directional DC motor with brakingand speed control.

- 2-31 -

• KIA7805AP/API (IC940)THREE TERMINAL POSITIVE VOLTAGE REGULATORS 5V, 6V, 8V, 9V, 10V, 12, 15V, 18V, 24V.

EQUIVALENT CIRCUIT

- 2-32 -

BLOCK DIAGRAM

IC404-AJK401

SMPS Power code+12V

+40V-40V

P-SENSTUNER/FUNTION/OP-AMP

+6.2VCD/MICOM/EXPENDER

501 IC3BU2090

LC72131M

JK600

601

IC602

STK403-120IC700

IC404-B

2-33 2-34

2-35 2-36

SCHEMATIC DIAGRAMS

• MAIN SCHEMATIC DIAGRAM

2-37 2-38

• DECK SCHEMATIC DIAGRAM

2-39 2-40

• FRONT SCHEMATIC DIAGRAM

2-41 2-42

• SMPS-WIDE SCHEMATIC DIAGRAM

2-43 2-44

• CDP SCHEMATIC DIAGRAM

2-45 2-46

WIRING DIAGRAM

2-47 2-48

PRINTED CIRCUIT DIAGRAMS

• MAIN P.C. BOARD (SOLDER SIDE)

2-49 2-50

• MAIN P.C. BOARD (COMPONENT SIDE)

2-51 2-52

• FRONT P.C. BOARD (SOLDER SIDE)

2-53 2-54

• FRONT P.C. BOARD (COMPONENT SIDE)

2-55 2-56

• SMPS P.C. BOARD

2-57 2-58

• CD MAIN P.C. BOARD (COMPONENT SIDE) • CD MAIN P.C. BOARD (SOLDER SIDE)

3-1 3-2

SECTION 3. EXPLODED VIEWS

271

454

A47

273

272

455

302

305

304

354

454

454

454

A46

MIC Option

MIC Option

306

A00

A43

303

355

A41

A26

270

269

351454

354

266

267268

265

264

A49

263

262

284

285

261

287

258

287

255

256

250

251

252

253

254

288

286

284

259

260

CABINET AND MAIN FRAME SECTION

3-3 3-4

• TAPE DECK MECHANISM (A/R & A/S : LEFT A/S DECK)

016

401

018007

008

015

023

019

021

020

505

017

403504

025026

030

029

028

401027

502

009

401

003

501

401

011

013

009

022 LOCA. NO. LG PART NO. DESCRIPTION SPECIFICATION

A00 6720AG0002C DECK,AUDIO CWM42FR47 TOKYO PIGEON L-DOUBL

003 6768R-PP03A DECK MECHANISM PARTS 33-160-4309 PIGEON PRESS CASSE

007 6768R-GP03B DECK MECHANISM PARTS 50-222-4578 PIGEON GEAR IDLER

008 6768R-SP01F DECK MECHANISM PARTS 01-082-4598 PIGEON SPRING CWL4

009 6768R-MP01C DECK MECHANISM PARTS 50-219-4014 PIGEON MOLD CWL44

011 6768R-SP01A DECK MECHANISM PARTS 01-081-4601 PIGEON SPRING CWL4

013 6768R-SP03A DECK MECHANISM PARTS 01-082-4686 PIGEON SPRING CRM4

015 6768R-AP01A DECK MECHANISM PARTS 50-268-3016 PIGEON ARM CWL44

016 6768R-GP01H DECK MECHANISM PARTS 50-093-4503 PIGEON GEAR CRL442

017 6768R-AP01C DECK MECHANISM PARTS 50-239-4072 PIGEON ARM CWL44

018 6768R-GP01J DECK MECHANISM PARTS 50-222-4428 PIGEON GEAR CRL442

019 6768R-SP01P DECK MECHANISM PARTS 01-081-4678 PIGEON SPRING CRL4

020 6768R-BP01C DECK MECHANISM PARTS 02-083-4188 PIGEON BELT/FELT C

021 6768R-LP01C DECK MECHANISM PARTS 50-223-4429 PIGEON PULLEY/FLYW

022 6768R-VP03A DECK MECHANISM PARTS 50-093-4748 PIGEON SOLENOID AS

023 6768R-GP03A DECK MECHANISM PARTS 50-093-4810 PIGEON GEAR ASSY C

025 6768R-JP03B DECK MECHANISM PARTS 50-093-31009 PIGEON PULLEY/FLY

026 6768R-SP01D DECK MECHANISM PARTS 01-080-4609 PIGEON SPRING CWL4

027 6768R-DP01A DECK MECHANISM PARTS 50-259-3342 PIGEON LEVER CWL44

028 6768R-RP01A DECK MECHANISM PARTS 22-027-41054 PIGEON ROLLER CWL

029 6768R-MP01A DECK MECHANISM PARTS 50-219-4033 PIGEON MOLD CWL44

030 6768R-EP03C DECK MECHANISM PARTS T21V0P PIGEON HEAD CWM42FF30

401 6768R-CP01B DECK MECHANISM PARTS GSE20A2005 PIGEON SCREW CWL44

403 6768R-CP01D DECK MECHANISM PARTS GSL10A1704 PIGEON SCREW CWL44

501 6768R-WP03A DECK MECHANISM PARTS GWN19S035040 PIGEON WASHER CRM

502 6768R-WP03B DECK MECHANISM PARTS 03-000-4532 PIGEON WASHER CRM4

504 6768R-WP01D DECK MECHANISM PARTS GWP21X045020 PIGEON WASHER CWL

505 6768R-WP01E DECK MECHANISM PARTS GWP12X030040S PIGEON WASHER CW

3-5 3-6

• TAPE DECK MECHANISM (A/R & A/S : RIGHT A/R DECK)

025504

023

015

022

019037

021

020

505

018

017016

506

006

A01

402008

007

401

001

002

003

502507

501502

402

401009

401009

011

013

035

039

031040

028

029

027

026

038

028032

406

409

403

036

LOCA. NO. LG PART NO. DESCRIPTION SPECIFICATIONA00 6720AG0002C DECK,AUDIO CWM42FR47 TOKYO PIGEON L-DOUBLA01 6768R-UP03D DECK MECHANISM PARTS 50-093-4895 PIGEON PWB UNIT CW001 6768R-BP03D DECK MECHANISM PARTS 02-083-4254 PIGEON BELT/FELT C002 6768R-BP03E DECK MECHANISM PARTS 02-083-4256 PIGEON BELT/FELT C003 6768R-PP03A DECK MECHANISM PARTS 33-160-4309 PIGEON PRESS CASSE006 6768R-QP03C DECK MECHANISM PARTS 50-093-4880 PIGEON MOTOR(ASSY)007 6768R-GP03B DECK MECHANISM PARTS 50-222-4578 PIGEON GEAR IDLER008 6768R-SP01F DECK MECHANISM PARTS 01-082-4598 PIGEON SPRING CWL4009 6768R-MP01C DECK MECHANISM PARTS 50-219-4014 PIGEON MOLD CWL44011 6768R-SP01A DECK MECHANISM PARTS 01-081-4601 PIGEON SPRING CWL4013 6768R-SP03A DECK MECHANISM PARTS 01-082-4686 PIGEON SPRING CRM4015 6768R-AP01A DECK MECHANISM PARTS 50-268-3016 PIGEON ARM CWL44016 6768R-GP01H DECK MECHANISM PARTS 50-093-4503 PIGEON GEAR CRL442017 6768R-AP01C DECK MECHANISM PARTS 50-239-4072 PIGEON ARM CWL44018 6768R-GP01J DECK MECHANISM PARTS 50-222-4428 PIGEON GEAR CRL442019 6768R-SP01P DECK MECHANISM PARTS 01-081-4678 PIGEON SPRING CRL4020 6768R-BP01C DECK MECHANISM PARTS 02-083-4188 PIGEON BELT/FELT C021 6768R-LP01C DECK MECHANISM PARTS 50-223-4429 PIGEON PULLEY/FLYW022 6768R-VP03A DECK MECHANISM PARTS 50-093-4748 PIGEON SOLENOID AS023 6768R-GP03A DECK MECHANISM PARTS 50-093-4810 PIGEON GEAR ASSY C025 6768R-JP03B DECK MECHANISM PARTS 50-093-31009 PIGEON PULLEY/FLY026 6768R-SP01D DECK MECHANISM PARTS 01-080-4609 PIGEON SPRING CWL4027 6768R-DP01A DECK MECHANISM PARTS 50-259-3342 PIGEON LEVER CWL44028 6768R-RP01A DECK MECHANISM PARTS 22-027-41054 PIGEON ROLLER CWL029 6768R-MP01A DECK MECHANISM PARTS 50-219-4033 PIGEON MOLD CWL44031 6768R-SP04A DECK MECHANISM PARTS 01-082-4731 PIGEON SPRING032 6768R-EP04A DECK MECHANISM PARTS 50-093-41007 PIGEON HEAD ASSY035 6768R-PP04A DECK MECHANISM PARTS 50-119-4915 PIGEON PRESS036 6768R-SP04B DECK MECHANISM PARTS 01-081-4730 PIGEON SPRING037 6768R-JP03A DECK MECHANISM PARTS 50-093-4674 PIGEON PULLEY/FLYW038 6768R-MP01D DECK MECHANISM PARTS 50-219-4034 PIGEON MOLD CWL44039 6768R-MP02A DECK MECHANISM PARTS 50-219-3900 PIGEON MOLD040 6768R-SP01M DECK MECHANISM PARTS 01-080-4607 PIGEON SPRING CWL4401 6768R-CP01B DECK MECHANISM PARTS GSE20A2005 PIGEON SCREW CWL44402 6768R-CP01A DECK MECHANISM PARTS GSE10A2003 PIGEON SCREW CWL44403 6768R-CP01D DECK MECHANISM PARTS GSL10A1704 PIGEON SCREW CWL44406 6768R-CP01G DECK MECHANISM PARTS GSE20A2004 PIGEON SCREW CWL44409 6768R-CP02A DECK MECHANISM PARTS GSD10A2016 PIGEON SCREW501 6768R-WP03A DECK MECHANISM PARTS GWN19S035040 PIGEON WASHER CRM502 6768R-WP03B DECK MECHANISM PARTS 03-000-4532 PIGEON WASHER CRM4504 6768R-WP01D DECK MECHANISM PARTS GWP21X045020 PIGEON WASHER CWL505 6768R-WP01E DECK MECHANISM PARTS GWP12X030040S PIGEON WASHER CW506 6768R-WP01H DECK MECHANISM PARTS GWP23X040020 PIGEON WASHER CWL507 6768R-WP01F DECK MECHANISM PARTS GWN21X040040 PIGEON WASHER CWL

3-7 3-8

LOCA.NO. PART NO DESCRIPTION SPECIFICATIONA26 4405RBE004C MECHANISM ASSEMBLY CDM-H1503 3 CD CHANGERA30 3041RB0002C BASE ASSEMBLY PU(SPRING DAMPER)A35 6717RCA001A PICK UP ASSY KSM-213VSCM SONY FRONT LOADING151 3390RB0002A TRAY DISC(CDM-H1503)153 4470RB0005A GEAR TRAY (CDM-H1503)155 4681RBA001A MOTOR ASSEMBLY TRAY (CDM-H1503)156 6871RF9211A PWB(PCB) ASSEMBLY,FRONT 1503 T/D SENSOR159 3390RB0001A TRAY LOADING(CDM-H1503)162 4400SB0001A BELT MAIN(CDM-H1303)163 4470SB0003A GEAR PULLEY (CDM-H1303)164 4470RB0003A GEAR LOADING (CDM-H1503)165 6871RZ7036A PWB(PCB) ASSEMBLY,OTHERS CDM-H1503 UP/DW/OP/CL166 4470RB0006A GEAR PU UP (CDM-H1503)167 4470RB0007A GEAR PU DOWN (CDM-H1503)168 4470RB0002A GEAR CAM (CDM-H1503)169 4860SB0001A CLAMP DISC(CDM-H1303)170 3550SB0001A COVER MAGNET(CDM-H1303)171 524-012AAAA COVER CLAMP MAGNET (030X018X5T)172 3040RB0005A BASE MAIN (CDM-H1503)173 4510RB0001A LEVER S/W CLOSE175 4680SBP001A MOTOR(MECH) OTHER . . .177 4470RB0001A GEAR MAIN (CDM-H1503)184 4900RB0001A DAMPER RUBBER 3CD CHANGER185 3040SB0003A BASE PU(CDM-H1303)186 4970RB0001A SPRING COIL 3 CD CHANGER187 4970RB0001B SPRING COIL 50 3CD CHANGER416 88H-0004 CD MECHA PARTS 3X12X12FNM417 88H-0002 CD MECHA PARTS 3X9X12FZMY418 353-025BAAA SCREW #NAME?419 88H-0003 CD MECHA PARTS 3X12X10FZMY420 353S353F SCREW #NAME?421 6756SBX001A CD MECHANISM PARTS SCREW 2.6X10X10XFZMY CDM-H813422 353-028H SCREW #NAME?

416

151

156

418

169

173 171

170419

163

422

165

159

164

417

417

416

166

167

177

175

172

162

153

168

155

• CD MECHANISM

3-9 3-10

MEMO MEMO

- 4-1 -

SECTION 4. SPEAKER SECTION

MODEL: LMS-M1040

LOCA.NO PART NO. DESCRIPTION SPECIFICATION850 3720RMF113A PANEL,FRONT SPK LMS-M1040 MOLD FRONT PANEL851 3720RMF114A PANEL,FRONT SPK LMS-M1040 MOLD FRONT PANEL852 353M075H SCREW,DRAWING H1 D3.5 L10.0 MSWR3/FN CHROME853 353M050C SCREW,DRAWING BH 3.5X16 FBK854 3610RM0005A FOOT EVA PHI 20 X 2T FE-986/886E ST855 6400TETB04A SPEAKER,TWEETER 06N45EHC4067 EAW TWEETER(CONE)856 353M025F SCREW,DRAWING TAPTITE, 3X8 FZMY857 353M050E SCREW, WOOD, 4X16 FBK858 353M050H SCREW,DRAWING + 1 D4.0 L12.0 MSWR3/FZY FE-35859 6400WETJ10A SPEAKER,WOOFER 16LAOEHC4063C EAW WOOFER 6OHM860 4980RM0001A SUPPORTER SPK LMS-1030 MOLD W/F SUPPORT861 3091RMW114A CABINET ASSEMBLY SPK LMS-M1040 CABINET ASS`Y

861

862857

856

860

859

853

854

855850

850

852

LEFT

RIGHT

- 4-2 -

MEMO

lg-lm-m1040 hifi schematic diagrams

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