ht356sd english 1 - cover - diagramasde.com · 2013. 5. 23. · 3-1. how to update mtk dvd program...

P/NO : AFN75272758 JANUARY, 2011

DVD HOME THEATER SYSTEMSERVICE MANUAL

MODEL: HT356SD(HT356SD, SH36SD-S/W)

CAUTIONBEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS”IN THIS MANUAL.

Website http://biz.lgservice.comInternal Use Only

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1-1

[CONTENTS]

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

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

• SERVICE INFORMATION FOR EEPROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

• HOW TO UPDATE DVD & AUDIO MICOM PROGRAMS. . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

• SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

SECTION 2. ELECTRICAL PART • TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

• DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING . . . . . . . . . . . . . . . 2-13

• WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27

• OVERALL BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29

• CIRCUIT DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-31

• CIRCUIT VOLTAGE CHART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-41

• PRINTED CIRCUIT DIARGAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-45

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

• DECK MECHANISM EXPLODED VIEW (DP-15T) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

• PACKING ACCESSORY SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

• SPEAKER SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

SECTION 4. MECHANISM (DP-15T) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

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

1-2

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/or damage to the printed-circuit board.

3) Each and every pick-up is already individually adjusted to a high degree of precision, and for that reason the 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 used for camera lens). The lens is held by a delicate spring. When cleaning the lens surface, therefore, a cot-ton swab should be used, taking care not to distort lens.

6) Never attempt to disassemble the pick-up.Spring has excess pressure. If the lens is extremely dirty, apply isopropyl alcohol to the cotton swab. (Do not use any other liquid cleaners, because they will damage the lens.) Take care not to use too much of this 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 allow contact with fingers or other exposed skin.

Magnet

How to hold the pick-up

Conductive Sheet

Cotton swab

Pressure

Pressure

SECTION 1. GENERAL

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, components can 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 be taken, therefore, to avoid repair or storage where the temperature or humidity is high, where strong magne-tism 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 is because 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

static 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.

Resistor(1 Mohm) Conductive

Sheet

Resistor(1 Mohm)

Armband

1-4

ESD PRECAUTIONS

Electrostatically 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 surface 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 ALL OTHER 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 generate static electricity sufficient to damage an ESD device).

CAUTION. GRAPHIC SYMBOLS

THE LIGHTNING FLASH WITH APROWHEAD SYMBOL. WITHIN AN EQUILATERAL TRIANGLE, IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF UNINSULATED “DANGEROUS VOLTAGE” THAT MAY BE OF SUFFICIENT MAGNITUDE TO CONSTITUTE A RISK OF ELECTRIC SHOCK.

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

1-5

SERVICE INFORMATION FOR EEPROM

POWER ON

DVD LOGO Status (NO Disk status)

Remote control Pause key-->1-->4-->7-->2 in order.

Press number 0~9, Press characterA~F (1~6 for a while)

Use arrow key ( ) to move to appropriate position and make changes

Press pause key once

Change will be applied when powerOFF-->ON.

DETECT NEW EEPROM(OPTION EDIT SCREEN)

HEX<C>F100A4AD0009A0265008

NAME

OPT 1OPT 2OPT 3OPT 4OPT 5OPT 6OPT 7OPT 8OPT 9OPT A

HEX

F100A4DD0009A0265008

HEX<A> <B>

F100A4DD0009A0225008

Applicable Models*<A> HT356SD-A2.BKENHLK<B> HT356SD-A2.BMARLLK<C> HT356SD-A2.BZAFLLK

1-6

1. The Whole Sequence 1) DVD program download. 2) Power cord out −> in. 3) Audio micom program download. 4) Remote control Pause key ‘ ’ + ‘1472’ for input options. 5) Enter into the system information for check the version, options and check sum. 6) Power off −> on.

Attention: After DVD program download, never input options and check the version before power cord out.

2. How to enter into System Information 1) Enter into SETUP menu in NO Disc. 2) Put on cursor [Highlight] 16:9 wide option of TV aspect in SETUP menu. 3) Press follow key in continuous using remote control. 1 −> 3 −> 9 −> 7 −> 1 −> 3 −> 9 −> ENTER

3. How to update program 3-1. How to update MTK DVD program 1) Rename the fi lename to download as “LG_(MODEL NAME).ROM” in upper cases. Ex.) HT356 : “LG_HT356.ROM” 2) Copy the fi le to the formatted USB, and burn it. 3) Move to the USB function, and insert the USB to the set. The upgrade information will be shown on the screen. 4) Remove the USB, press PLAY key of the remote control. 5) Remove and reconnect the power cable when it changes to logo screen from upgrade information. Then the upgrade process is completed.

3-2. How to update AUDIO MICOM program 1) Change the fi lename to download as “(MODEL NAME)_(Version).HEX”. Only upper cases are permitted. Ex.) HT356 : HT356_0809262.HEX 2) Copy the fi le to the root folder of USB storage. 3) Put the USB into the SET, and move to the USB function. Then the upgradeprocess will be started with the upgrade information. 4) If the upgrade process is complete, the set will be power off automatically with “Complete” message.

HOW TO UPDATE DVD & AUDIO MICOM PROGRAMS

1-7

SPECIFICATIONS• GENERALPower supply Refer to main label.Power consumption Refer to main label.Dimensions (W x H x D) Approx. 360 x 65 x 320 mm without footNet Weight (Approx.) 2.5 kgOperating conditions Temperature 5 °C to 35 °C (41 °F to 95 °F)Operating humidity 5 % to 90 %

• OUTPUTSVIDEO OUT 1.0 V (p-p), 75 Ω, sync negative, RCA jack x 1COMPONENT VIDEO OUT (Y) 1.0 V (p-p), 75 Ω, sync negative, RCA jack x 1

(Pb)/(Pr) 0.7 V (p-p), 75 Ω, RCA jack x 2ANALOG AUDIO IN 2.0 Vrms (1 kHz, 0 dB), 600 Ω, RCA jack (L, R) x 1PORT. IN 0.5 Vrms (3.5 mm stereo jack)

• SYSTEMLaser Semiconductor laser, wavelength: 650 nmSignal system Standard NTSC/PAL color TV systemFrequency response 20 Hz to 20 kHz (48 kHz, 96 kHz, 192 kHz sampling)Signal-to-noise ratio More than 80 dBHarmonic distortion 0.05 % at 1 WDynamic range More than 85 dBBus Power Supply (USB) DC 5 V 500 mA

• AMPLIFIERStereo mode 45 W + 45 W (4 Ω at 1 kHz)Surround mode Front 45 W + 45 W (THD 1 %) Center 45 W Surround 45 W + 45 W (4 Ω at 1 kHz) Subwoofer 75 W (8 Ω at 60 Hz)

• TunerFM Tuning Range 87.5 to 108.0 MHz or 87.50 to 108.00 MHz

1-8

• SPEAKERSFront SpeakerType 1 Way 1 SpeakerImpedance Rated 4 ΩInput Power 45 WMax. Input Power 90 WNet Dimensions (W x H x D) 113 x 113 x 84 mmNet Weight 0.34 kg

Rear SpeakerType 1 Way 1 SpeakerImpedance Rated 4 ΩInput Power 45 WMax. Input Power 90 WNet Dimensions (W x H x D) 113 x 113 x 84 mmNet Weight 0.38 kg

Center SpeakerType 1 Way 1 SpeakerImpedance Rated 4 ΩInput Power 45 WMax. Input Power 90 WNet Dimensions (W x H x D) 113 x 113 x 84 mmNet Weight 0.34 kg

SubwooferType 1 Way 1 SpeakerImpedance Rated 8 ΩInput Power 75 WMax. Input Power 150 WNet Dimensions (W x H x D) 157 x 325 x 250 mmNet Weight 3 kg

Note : Design and specifications are subject to change prior notice.

2-1

TROUBLESHOOTING GUIDE1. Power Supply Circuit

YES

Check power supply circuit.

Check tracking servo circuit.

Check audio circuit.NO

NO

NOIs power on?

YES

Does it play?

YES

Does it outputaudio?

YES

YES

Turn power on.

INSERT POWER CORD.

OK

SECTION 2. ELECTRICAL PART

2-2

2. Front circuit (1/2)

Reconnect it.NO

YES

YES

NO Check ifPN301 is ok?

Refer to SMPS part.NO

YES

Check if the frontpower is ok?

YES

Is the Digitron oncorrectly?

Check pattern and resolderingNO

NO

Check ifDIS301 is ok?

YES

Check if the remotecontrol is ok?

YES

Check if allbuttons are ok?

POWER ON.

Front B/D ok.

NO

2-3

3. Front circuit (2/2)

1

Refer to power(SMPS).NO

Replace R346~R349, R352, R370.NO

Check if thepower part of the

front is ok?

YES

Check ifR346~R349, R352, R370

ok?

YES

Refer to MICOM circuit.

2

Refer to power(SMPS).NOCheck if the

power part of the front is ok?

YES

Refer to MICOM circuit.NOCheck if the remote

control waveform of PN301pin5 is ok?

YES

Check RM circuitNOCheck if RC301

voltage is ok(3.3V)?

YES

Resolder or Replace RC301.

2-4

4. System operation flow

YES

YES

YES

Tray closed?

1. Initializes SERVO, DSP & RISC registers.2. Write RISC code to SDRAM.3. Reset RISC.

Show LOGO.

Tray close to closed position.

SLED at innerside?

RecieveOPEN/ CLOSE

Key?

ReceiveCLOSE Key?

SLED moves to inner position.

1. Judge whether have disc and disc type.2. Jump to related disc reading procedure.

1. Execute Pressed Key & IR Key.2. System operation routine loop.

NO

NO

NO

NO

YES

1. Stop Playback & Open Tray.2. Display tray open message & LOGO.

POWER ON.

YES

YES

2-5

5. Test & debug flow

Check the POWER PART.NO

Check the POWER PART.NO

YES

Check theAC voltage Power PCBA (110V

or 220V).

Check the regulators or diode.NO

1. Check 27MHz system clock.2. Check system reset circuit.3. Check FLASH R/W enable signal PRD, RWR.4. Check FLASH Memory related circuit.

NO

Replace FLASH.

NO

YES

Are theDC Voltage outputs OK? (12V,

3.3V, 5V, 7V, 34V).

YES

Are 3.3V and 5V DC outputs normal on main

PCBA?

YES

YES

UpdateFLASH successfully?

YES

Switch on the Power PCBA.

TEST.

A

2-6

NOCheck connection lines between FLASH & MT1389L and the FLASH access timewhether is suitable or not.

NO

YES

YES

YES

YES

Check AV cableconnection to TV set.

YES

YES

YES

FlashMemory operates

properly?

Check connection lines between SDRAM(IC503) & MT1389L and the SDRAMis damaged.

NOSDRAMworks properly?

Check the related circuit ofMT1389L IC501 Pins99, 102, 103, 104.

NOMT1389LVIDEO outputs

properly?

Show LOGO?

NO Check the load OPEN & CLOSE switch.

NO

Check AV cable connection between main PCBA andloader. (MECHA)

YES

YES

YES

NormalOPEN_SW,CLOSE_SW

signal?

Check the Tray control IO pins on MT1389L.

NONormalTROPEN & TRCLOSE

signal?

Check the Tray control MOTOR & SERVO circuit IC400.

NONormalLOAD+ & LOAD-

signal?

Does Traymove inside when it

is not at closedposition?

Power On.

A

B

2-7

NO Check the connection line ofM_STBY.

NO

YES

YES

YES

Check the cable connectionwith MECHA.

Do not put in discand close tray.

YES

YES

YES

MotorDriver M_STBY

pin is high?

Check the related circuit of SLD.

NOMotor

Driver M_STBYpin is High?

Check the AMP circuit on motor driver.

NOSLED+ andSLED- output

properly?

Doesthe SLED move to innerside when it is at outer

position?

NO Check Focus connection onMT1389L and motor driver.

NO

Check cable connection withpick-up head.

YES

YES

ProperFocus outputs

to motor driver?

Check the AMP circuit on motor driver.

NOProper F+ & F-outputs?

Optical Lenshas movements forsearching Focus?

B

C

2-8

NO

NO

Check the laser power circuit on MT1389L and

connecting to power transistor(Q403, Q405).

YES

YES

YES

YES

YES

YES

Check cable connectionbetween transistor output and

pick-up head.

Laser off.

Check the RF connectionbetween AM5890 and MT1389L.

YES

YES

DVDLD orCDLD output

property?

Check the related circuit on laser power transistor.

NO

NOCollector

voltage of power transistoris OK?(Q403, Q405)

Laserturns on whenreading disc?

Put disc in?

Check the cable connectionbetween spindle and main

PCB.

YES

YES

Check the spindle control AMP circuit of motor driver.

SPNPSPNN output

properly?

NO Check the SPINDLE relatedcircuit on MT1389L.

ProperSPINDLE signal on

MT1389L.Does spindle rotate?

NO Check the related circuit onMT1389L RF signal.

NO

NO

NOProperRF signal on

MT1389L.Disc ID is correct?

C

D

2-9

Check connections betweenMT1389L and pick-up head.

Check the related circuit onMT1389L CD_DVDCT.

Check the related circuit onMT1389L.

Check the TRACK connectionon MT1389L and motor driver.

Check the tracking control AMPcircuit on motor driver.

NO NO

YES

YES

YES

Check CD_DVDCT connectionbetween AM5890 and

MT1389L.

Check cable connectionon pick-up head.

YES

YES

Propersignals on A, B, C,

D of MT1389L.

NOProperCD_DVDCT signal on

MT1389L.

Focus on ok?

NODisc Playback?

NO NO

NO

NO

YES

ProperCD_DVDCT signal on

MT1389L.

YES

ProperTRACK signalon MT1389L.

YES

T+ & T- outputproperly?

Track On OK?

D

YES

E

Check RF signal waveform.

2-10

NO Check connection betweenIC602 BCK, LRCK, ADATA0.

YES

YES

Check Digital AMP circuit(IC701, IC702).

YES

Check the related circuit ofPWM.(Check Audio outPins28, 31, 33, 34, 37, 39, 42).

NO

NO

YES

PWM ICreceived correct data

stream?

NormalPWM IC out?(IC602).

Normal Audiooutput when disc

playback?

E

TEST END.

2-11

6. AMP Protection

OK.NO

YES

"PROTECTION"appears continuously on the FLD.

Replace IC101.NO

YES

Is the IC101 pin54"LOW" signal(0V)?

Replace the Q701 and Q702.NO

YES

Is the Q701 andQ702 normal?

YES

YES

After unplug power cord, connect again.

YES

Power on.

"PROTECTION" appears on the FLD.

Replace TI AMP IC(IC701, IC702)

2-12

7. AUDIO μ-COM Circuit(DVD & AMP)

Check DVD Module.

Check SMPS.

OK

YES

Power On.

DoesCD/DVD appear at

FLD?

YES

NODoesit appear DVD Error

at FLD?

Does Aux,Scart, opt and FM 87.5

appear at FLD.

DoesReading appear

at FLD?

YES

Doesno Disc or Time

appear at FLD?

YES

Checkif DVD and AUDIO

CD insert isOK.

Check Power.

YES

YES

Replace IC101.

YESNO

NO

NO

NO

Refer to SMPS.

Refer to oscillator circuit.

Check IC101 reset waveform.

NO

YES

Check 3.3V line.

Check power sectioncircuit.

NO

NO

NO

NO

NO

Checkpower part of Main

B/D.

Checkoscillator of

X101.

Checkif IC101 Pin5

is high.

YES

YES

YES

Checkif IC101 Pin9,36,59 are

high(3.3V).

Checkif IC101 Pin49

is high.

YES

2-13

DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING1. SYSTEM 27MHz CLOCK,RESET,FLASH R/W SIGNAL

2) MT1389L reset is high active.

1) MT1389L main clock is at 27MHz(X500)

12 21

40

20

19

1

38

39

2

16 26 13

29

31

11

3

24

33

30

10

2818

4

FIG 1-1

1

FIG 1-2

2

3

4

2-14

3) Flash R/W enable signal during download(Downloading)

2. SDRAM CLOCK

1) MT1389L main clock is at 27MHz(X500)

FIG 1-3

5

6

SF_DI

SF_DO

DCLK = 93MHz, Vp-p=2.2, Vmax=2.7V

FIG 2-1

7

SDCLK

6

5

7

2-15

3. TRAY OPEN/CLOSE SIGNAL

1) Tray open/close waveform 2) Tray close waveform

3) Tray open waveform

FIG 3-3

8

9

10

11

OPENSW

CLOSESW

OPEN

CLOSE

FIG 3-1

8

9

10

11

OPENSW

CLOSESW

OPEN

CLOSE

FIG 3-2

8

9

10

11

OPENSW

CLOSESW

OPEN

CLOSE

17 22 27

15

9

1110

28

148

18

35

16 26

17 22 27

11

3

24

33

3034

10

2818

2-16

4. SLED CONTROL RELATED SIGNAL (NO DISC CONDITION)

FIG 4-1

12

13

14

15

SLD

M-STBY

SL+

SL-

12 21

40

20

19

1

38

39

16 26 13

29

31

11

3

24

33

30

10

2818

35

17 22 27

15

9

11

33

3034

10

28

148

18

2-17

6. LASER POWER CONTROL RELATED SIGNAL(NO DISC CONDITION)

5. LENS CONTROL RELATED SIGNAL(NO DISC CONDITION)

FIG 6-1

19

20

21

FIG 5-1

16

17

18

FOD

F+

F-

MDI1

DVDLD

CDLD

3

16 26

17 22 27

9

11

3

24

33

3034

10

28

8

18

12 21

40

20

19

1

38

39

2-18

7. DISC TYPE JUDGEMENT WAVEFORMS

23 : This signal can see using special debug program

FIG 7-1 (DVD)

22

23

24

F+

PU_DET

RF

FIG 7-2 (DVD)

22

23

24

F+

PU_DET

RF

35

16 26

17 22 27

15

9

11

24

33

3034

10

28

148

18

16 26

11

3

24

33

30

10

3623 25 32

39

37

2-19

FIG 7-3 (CD)

22

23

24


F+

PU_DET

RF

FIG 7-4 (CD)

22

23

24

F+

PU_DET

RF

35

16 26

17 22 27

15

9

11

24

33

3034

10

28

148

18

16 26

11

3

24

33

30

10

3623 25 32

39

37

2-20

8. FOCUS ON WAVEFORMS


FIG 8-1 (DVD)

25

26

27

28

PU_DET

FOD

F+

F-

FIG 8-2 (CD)

25

26

27

28

PU_DET

FOD

F+

F-

3623 25 32

39

37

3

16 26

17 22 27

159

11

3

24

33

3034

10

28

148

18

2-21

9. SPINDLE CONTROL WAVEFORMS (NO DISC CONDITION)

FIG 9-1

29

30

31

SPIND

SP-

SP+

35

16 26

17 22 27

15

13

29

31

9

11

3

24

33

3034

10

28

148

18

2-22

10. TRACKING CONTROL RELATED SIGNAL(System checking)


FIG 10-1(DVD)

32

33

34

35

PU_DET

TRO

T-

T+

FIG 10-2(CD)

32

33

34

35

PU_DET

TRO

T-

T+

3623 25 32

39

37

35

16 26

17 22 27

13

29

31

11

3

24

33

3034

10

2818

2-23

2) Y

11. MT1389L VIDEO OUTPUT WAVEFORMS

1) Full colorbar signal(COMPOSIT)

FIG 11-1

36

FIG 11-2

37

CVBS

Y_G

3623 25 32

39

37

3623 25 32

39

37

2-24

38

39

40

12 21

40

3623 25 32

38

39

37

12. AUDIO OUTPUT FROM MT1389L

1) Audio related Signal

FIG 12-1

ASDATA3 ADATA0

BCK

LRCK

2-25

1)

• FL+ : R640

2)

• RL+ : R641

3)

• WF- : R642 or WF+ : R643

4)

• C+ : R644

5)

• FR+ : R645

6)

• RR+ : R646

13. DVD & AMP WAVEFORMS MT1389L

41

43

45

42

44

46

4443

42

41

4546

WIRING DIAGRAM

SMPS PCB

COMPONENTCVBSAUX

SCART SPK TERMINAL

23P

IN 9PIN 18PIN

14 PIN12 PIN

MD

Tun

er

JK202 JK201 TU100 JK701

MAIN+AMP PCB

FRONT PCB

USB/MIC PCB

VFDVOLUME

MIC 1,2USBPORT.IN

CN202

CN401

CN103

CN402

CN303

PN202

WIRING DIAGRAM2009.11.24

2-27 2-28

OVERALL BLOCK DIAGRAM

1/12

DVD_CLK

Tuner

LEDClock Driver

RMC

AMP IC+OPAMPTAS5342DDV

DVD_RST

DVD_CE

DVD_DO

DVD_DI

RDS_DATRDS_CLK

TUNER_DAT

TUNER_CL

ST_IND

RC

U_I

N

KE

Y

PS9850PWM_RST

PWMT_CLK

PWM_DAT

RE

SE

T

DB

GP

0

DB

GP

DB

GP

2

D/L CNT

AM

P_P

DN

AM

P_S

D

AM

P_P

RO

TE

CT

MIC

_DE

T

P_S

EN

SE

SDRAM

SERIALFLASH

DSCK#,CKE,

CS0#,RAS0#

SF_CS, SF_DI,

SF_DO,SF_CLK

27MHZADC

CS5346

V-JACK(4) SCARTAUX_IN

(2)

MM1692

MOTORDRIVE

IC(AM5890)

P/UP

M

DDECK MECHANISM

USBCON

MICI/F

Portable IN

USBP, USBN

S4308

MIC_L,R

A,B

,C,D

,E,F

,RF

LDO

1,LD

O2

CD

/DV

DM

DI

IOA

,VR

CD

,VR

DV

D

OPEN/CLOSE

FOCUS/SLED

SPINDLE/TRACKINAMP_STBY

MPEGMT1389L(128PIN)

Y/G,PB/B,PR/RCVBS

R/G/BCVBS

Y/Pb/Pr

ADDATA

MCLK, LRCK, BCK

ADC_RSTADC_CLKADC_DAT

SANYOLC87F564A

KEY

6965

_DO

6965

_CLK

6965

_ST

B

POWERI/F

3.7V 5V

LRCK,BCK,ADATA[0,2]To PWM From MPEG

Play-back ripping: 128MBit(16MByte)

BLOCK DIAGRAM2009.11.24

2-29 2-30

A

1

2

3

4

5

6

7

8

9

10

11

12

B C D E F G H I J K L M N O P Q R S T

SMPSEBY60688101 REV 4.3

2010. 12. 15

CIRCUIT DIAGRAMS1. SMPS(POWER) CIRCUIT DIAGRAM

NOTES) Symbol denotes AC ground.

NOTES) Symbol denotes DC chassis ground.

NOTE) WarningNOTE) Parts that are shaded are criticalNOTE) With respect to risk of fire orNOTE) electricial shock.CAUTION:

Danger if fuse is incorrectly replaced.Replace only with the type identical to fuse rating

and(or) model name described in main label.

2-31 2-32

IMPORTANT SAFETY NOTICE

WHEN SERVICING THIS CHASSIS, UNDER NO CIRCUMSTANCES SHOULD THE ORIGINAL DESIGN BEMODIFIED OR ALTERED WITHOUT PERMISSIONFROM THE LG CORPORATION. ALL COMPONENTSSHOULD BE REPLACED ONLY WITH TYPES IDENTICAL TO THOSE IN THE ORIGINAL CIRCUIT. SPECIAL

COMPONENTS ARE SHADED ON THE SCHEMATICFOR EASY IDENTIFICATION.THIS CIRCUIT DIAGRAM MAY OCCASIONALLY DIFFER FROM THE ACTUAL CIRCUIT USED. THIS WAY,IMPLEMENTATION OF THE LATEST SAFETY ANDPERFORMANCE IMPROVEMENT CHANGES INTOTHE SET IS NOT DELAYED UNTIL THE NEW SERVICELITERATURE IS PRINTED.

NOTE :1. Shaded( ) parts are critical for safety. Replace only

with specified part number.2. Voltages are DC-measured with a digital voltmeter

during Play mode.

12

35

21

7

40

36

16 26

17 22 27

15

13

29

31

9

11

620

19

23 25

3

32

1

5

38

24

33

3034

10

28

148

18

39

37

A

1

2

3

4

5

6

7

8

9

10

11

12


MAIN&AMPEBY60708001(#01) REV 2.8

2010. 12. 15

2. MAIN & AMP - 1 CIRCUIT DIAGRAM

WAVEFORM

2-33 2-34

3. MAIN & AMP - 2 CIRCUIT DIAGRAM

2

4443

42

41

4546

4

A

1

2

3

4

5

6

7

8

9

10

11

12


MAIN&AMPEBY60708001(#02) REV 2.8

2010. 12. 15WAVEFORM

2-35 2-36

4. FRONT CIRCUIT DIAGRAM

A

1

2

3

4

5

6

7

8

9

10

11

12


FRONTEBY60687401 REV 2.2

2009.11.24

2-37 2-38

5. FRONT JACK CIRCUIT DIAGRAM

A

1

2

3

4

5

6

7

8

9

10

11

12


FRONT JACKEBY60687501 REV 2.4

2009.12.22

2-39 2-40

CIRCUIT VOLTAGE CHART1. ICs ON MAIN AND AMP BOARD

Location Pin No. Spec. EE Mode(V) MarginPlayback Mode(V)

Margin

IC101 MICOM (LC87F5M64A)

9(VDD2) 2.8~5.5 3.4 0.6 3.4 0.6

36(VDD3) 2.8~5.6 3.4 0.6 3.4 0.6

59(VDD1) 2.8~5.7 3.4 0.6 3.4 0.6

IC201 ADC

5(VLC) 3.1~5.0~5.25 4.95 0.3 4.97 0.28

14(VA) 3.1~5.0~5.25 4.94 0.31 4.93 0.32

36(VLS) 3.1~3.3~5.25 3.34 1.91 3.34 1.91

46(VD) 3.1~3.3~5.25 3.34 1.91 3.34 1.91

IC204 SCART IC

1(VCC) 4.5~5.5 4.93 0.43 4.92 0.42

IC400 MOTOR

8(VCC1) 4.3~13.2 4.95 0.65 4.91 0.61

19(VCC2) 4.3~VCC 4.95 0.65 4.9 0.6

IC501 MPEG (MT1389L)

7 (AVDD18_2) 1.7~2.0 1.86 0.14 1.9 0.1

8 (AVDD33_1) 3.0~3.6 3.19 0.19 3.21 0.21

19 (AVDD33_2) 3.0~3.6 3.19 0.19 3.21 0.21

29 (VDD33_USB) 3.0~3.6 3.21 0.21 3.19 0.19

32 (VDD18_USB) 1.7~2.0 1.84 0.14 1.9 0.1

50 (DVDD33) 3.0~3.6 3.21 0.21 3.19 0.19

54 (DVDD18) 1.7~2.0 1.86 0.14 1.9 0.1

68(DVDD33) 3.0~3.6 3.21 0.21 3.19 0.19

84 (DVDD33) 3.0~3.6 3.21 0.21 3.19 0.19

90 (DVDD18) 1.7~2.0 1.86 0.14 1.9 0.1

95(DACVDDC) 3.0~3.6 3.19 0.19 3.18 0.18

100(DACVDDB) 3.0~3.6 3.19 0.19 3.18 0.18

101(DACVDDA) 3.0~3.6 3.19 0.19 3.18 0.18

109(AADVDD) 3.0~3.6 3.16 0.16 3.16 0.16

110(APLLVDD) 3.0~3.6 3.17 0.17 3.16 0.16

121(ADACVDD1) 3.0~3.6 3.22 0.22 3.22 0.22

122(ADACVDD2) 3.0~3.6 3.22 0.22 3.22 0.22

123(AVDD18_1) 1.7~2.0 1.86 0.14 1.91 0.09

IC502 FLASH

8(VDD) 2.3~3.6 3.21 0.39 3.19 0.41

IC503 SDRAM

1(VDD1) 3.0~3.6 3.21 0.39 3.19 0.41

3(VDDQ3) 3.0~3.6 3.21 0.39 3.31 0.29

9(VDDQ9) 3.0~3.6 3.21 0.39 3.31 0.29

14(VDD14) 3.0~3.6 3.21 0.39 3.31 0.29

27(VDD27) 3.0~3.6 3.21 0.39 3.31 0.29

43(VDDQ43) 3.0~3.6 3.21 0.39 3.31 0.29

49(VDDQ49) 3.0~3.6 3.21 0.39 3.31 0.29

IC504 EEPROM

8(VCC)1.8~5.5(Read)2.7~5.5(write)

3.41 2.09 3.4 2.1


Margin

IC602 PWM (PS9850)

16(VDD_IO) - 3.24 - 3.24 -

24(VDD_IO) - 3.24 - 3.24 -

29(VDD_IO) - 3.24 - 3.24 -

32(VDD_IO) - 3.24 - 3.24 -

35(VDD_IO) - 3.24 - 3.24 -

40(VDD_IO) - 3.24 - 3.24 -

48(VDD_IO) - 3.24 - 3.24 -

61(VDD_VIN2) - 3.24 - 3.24 -

64(VDD_VIN1) - 3.24 - 3.24 -

IC701 AMP

1(GVDD) 10.8~13.2 12.11 1.09 12.11 1.09

21(VDD) 10.8~13.2 12.11 1.09 12.11 1.09

22(GVDD) 10.8~13.2 12.11 1.09 12.11 1.09

23(GVDD) 10.8~13.2 12.11 1.09 12.11 1.09

26(PVDD_D) 0~31.5~34 33.8 0.2 33.8 0.2

27(PVDD_D) 0~31.5~34 33.8 0.2 33.8 0.2

32(PVDD_C) 0~31.5~34 33.8 0.2 33.8 0.2

35(PVDD_B) 0~31.5~34 33.8 0.2 33.8 0.2

40(PVDD_A) 0~31.5~34 33.8 0.2 33.8 0.2

41(PVDD_A) 0~31.5~34 33.8 0.2 33.8 0.2

IC702 AMP

1(GVDD) 10.8~13.2 12.11 1.09 12.11 1.09

21(VDD) 10.8~13.2 12.11 1.09 12.11 1.09

22(GVDD) 10.8~13.2 12.11 1.09 12.11 1.09

23(GVDD) 10.8~13.2 12.11 1.09 12.11 1.09

26(PVDD_D) 0~31.5~34 33.8 0.2 33.8 0.2

27(PVDD_D) 0~31.5~34 33.8 0.2 33.8 0.2

32(PVDD_C) 0~31.5~34 33.8 0.2 33.8 0.2

35(PVDD_B) 0~31.5~34 33.8 0.2 33.8 0.2

40(PVDD_A) 0~31.5~34 33.8 0.2 33.8 0.2

41(PVDD_A) 0~31.5~34 33.8 0.2 33.8 0.2

2. ICs ON FRONT BOARD


Margin

IC301 VFD IC

13(VDD) 4.5~5.5 3.42 -1.08 3.41 -1.09

30(VEE) VDD-35 -20.6 10.98 -20.4 11.19

43(VDD) 4.5~5.6 3.42 -1.08 3.41 -1.09

2-41 2-42

3. CAPACITORS ON MAIN AND AMP BOARD

4. CAPACITORS ON FRONT BOARD

No.Capacitor Value(uF)

Voltage Spec.

EE Mode Playback

(+) (-) Gap Margin (+) (-) Gap Margin

C106 220 10 V 3.41 V 0 V 3.41 V 6.59 V 3.4 V 0 V 3.4 V 6.6 V

C114 100 16 V 3.4 V 0 V 3.4 V 12.6 V 3.4 V 0 V 3.4 V 12.6 V

C122 220 10 V 3.69 V 0 V 3.69 V 6.31 V 3.69 V 0 V 3.69 V 6.31 V

C124 47 16 V 4.96 V 0 V 4.96 V 11.04 V 4.95 V 0 V 4.95 V 11.05 V

C127 47 16 V 12.11 V 0 V 12.11 V 3.89 V 12.12 V -0.01 V 12.13 V 3.87 V

C133 47 16 V 3.4 V 0 V 3.4 V 12.6 V 3.4 V 0 V 3.4 V 12.6 V

C145 10 16 V 3.4 V 0 V 3.4 V 12.6 V 3.39 V 0 V 3.39 V 12.61 V

C146 100 16 V 3.24 V 0 V 3.24 V 12.76 V 3.24 V 0 V 3.24 V 12.76 V

C241 22 50 V 2.47 V 0 V 2.47 V 47.53 V 2.46 V 0 V 2.46 V 47.54 V

C243 47 16 V 4.93 V 0 V 4.93 V 11.07 V 4.92 V 0 V 4.92 V 11.08 V

C264 10 16 V 4.94 V 0 V 4.94 V 11.06 V 4.93 V 0 V 4.93 V 11.07 V

C265 10 16 V 3.24 V 0 V 3.24 V 12.76 V 3.24 V 0 V 3.24 V 12.76 V

C267 47 16 V 4.92 V 0 V 4.92 V 11.08 V 4.92 V 0 V 4.92 V 11.08 V

C268 10 16 V 2.46 V 0 V 2.46 V 13.54 V 2.46 V 0 V 2.46 V 13.54 V

C274 470 10 V 1.57 V 1.4 V 0.17 V 9.83 V 2.13 V 1.93 V 0.2 V 9.8 V

C275 470 10 V 2.29 V 2.21 V 0.08 V 9.92 V 2.29 V 2.09 V 0.2 V 9.8 V

C276 470 10 V 2.28 V 2.14 V 0.14 V 9.86 V 2.28 V 2.11 V 0.17 V 9.83 V

C282 470 10 V 1.56 V 0.89 V 0.67 V 9.33 V 2.1 V 1.41 V 0.69 V 9.31 V

C417 47 16 V 3.21 V 3.2 V 0.01 V 15.99 V 3.19 V 2.28 V 0.91 V 15.09 V

C418 47 16 V 3.21 3.2 V 0.01 V 15.99 V 3.19 V 3.02 V 0.17 V 15.83 V

C420 47 16 V 4.95 V 0 V 4.95 V 11.05 V 4.9 V 0.04 V 4.86 V 11.14 V

C421 47 16 V 4.95 V 0 V 4.95 V 11.05 V 4.91 V 0.04 V 4.87 V 11.13 V

C423 100 16 V 4.94 0 V 4.94 V 11.06 V 4.93 V 0 V 4.93 V 11.07 V

C426 47 16 V 2.02 V 0 V 2.02 V 13.98 V 2.03 V 0 V 2.03 V 13.97 V

C427 47 16 V 1.41 V 0 V 1.41 V 14.59 V 1.41 V 0.04 V 1.37 V 14.63 V

C451 47 16 V 1.89 V 0 V 1.89 V 14.11 V 1.94 V 0.04 V 1.9 V 14.1 V

C506 47 16 V 3.21 V 0 V 3.21 V 12.79 V 3.19 V 0 V 3.19 V 12.81 V

C508 47 16 V 1.84 0 V 1.84 V 14.16 V 1.9 V 0 V 1.9 V 14.1 V

C516 47 16 V 3.19 0 3.19 V 12.81 V 3.18 V 0 V 3.18 V 12.82 V

C520 47 16 V 1.34 V 0 V 1.34 V 14.66 V 1.34 0.02 1.32 V 14.68 V

C523 220 10 V 3.16 V 0 V 3.16 V 6.84 V 3.16 0 3.16 V 6.84 V

C532 100 10 V 3.17 V 0 V 3.17 V 6.83 V 3.16 V 0 V 3.16 V 6.84 V

C538 10 16 V 1.47 V 0 V 1.47 V 14.53 V 1.58 V 0 V 1.58 V 14.42 V

C549 220 10 V 3.22 V 0 V 3.22 V 6.78 V 3.22 V 0 V 3.22 V 6.78 V

C563 10 16 V 3.21 V 0 V 3.21 V 12.79 V 3.19 V 0 V 3.19 V 12.81 V

C565 10 16 V 3.21 V 0 V 3.21 V 12.79 V 3.2 V 0 V 3.2 V 12.8 V

C613 10 16 V 1.24 V 0 V 1.24 V 14.76 V 1.24 V 0 V 1.24 V 14.76 V

C648 10 16 V -0.02 V -0.06 V 0.04 V 15.96 V -0.01 V -0.03 V 0.02 V 15.98 V

C702 47 50 V 12.11 V -0.04 V 12.15 V 37.85 V 12.11 V -0.02 V 12.13 V 37.87 V

C708 10 16 V 12 V 0.01 V 11.99 V 4.01 V 12.08 V -0.03 V 12.11 V 3.89 V

C723 470 50 V 33.8 V 0 V 33.8 V 16.2 V 33.8 V 0 V 33.8 V 16.2 V

C729 470 50 V 33.8 V 16.8 V 17 V 33 V 33.8 V 16.8 V 17 V 33 V

C730 470 50 V 16.8 V 0 V 16.8 V 33.2 V 16.8 V 0 V 16.8 V 33.2 V

C731 470 50 V 16.8 V 0 V 16.8 V 33.2 V 16.8 V 0 V 16.8 V 33.2 V

C732 470 50 V 33.8 V 16.8 V 17 V 33 V 33.8 V 16.8 V 17 V 33 V

C746 470 50 V 33.8 V 0 V 33.8 V 16.2 V 33.8 V 0 V 33.8 V 16.2 V


Voltage Spec.

EE Mode Playback


C753 10 16 V 12.07 V -0.03 V 12.1 V 3.9 V 12.08 V -0.03 V 12.11 V 3.89 V

C768 470 50 V 33.8 V 16.8 V 17 V 33 V 33.8 V 16.8 V 17 V 33 V

C770 470 50 V 16.8 V 0 V 16.8 V 33.2 V 16.8 V 0 V 16.8 V 33.2 V

C782 470 50 V 33.8 V 16.8 V 17 V 33 V 33.8 V 16.8 V 17 V 33 V

C784 470 50 V 16.8 V 0 V 16.8 V 33.2 V 16.8 V 0 V 16.8 V 33.2 V

C785 470 50 V 33.8 V 16.8 V 17 V 33 V 33.8 V 16.8 V 17 V 33 V

C7A7 470 50 V 33.8 V 0 V 33.8 V 16.2 V 33.8 V 0 V 33.8 V 16.2 V

C7A8 470 50 V 33.8 V 0 V 33.8 V 16.2 V 33.8 V 0 V 33.8 V 16.2 V

C800 10 16 V 1.22 V 1.15 V 0.07 V 15.93 V 1.31 V 2.03 V -0.72 V 16.72 V


Voltage Spec.

EE Mode Playback


C229 100 16 V 11.5 V 0 V 11.5 V 4.5 V 11.49 V 0 V - -

C2A3 220 16 V 2 V 0 V 2 V 14 V 2 V 0 V - -

C2A7 1 50 V 0 V 0 V 0 V 50 V 0 V 0 V - -

C2D1 220 6.3 V 4.97 V 0.04 V 4.93 V 1.37 V 4.95 V 0 V - -

C2D3 4.7 50 V 0.56 V 0.18 V 0.38 V 49.62 V 0.5 V 0.05 V - -

C2D4 4.7 50 V 0.9 V 0.5 V 0.4 V 49.6 V 0.82 V 0.37 V - -

C309 220 6.3 V 3.33 V 0 V 3.33 V 2.97 V 3.32 V 0 V - -

C332 47 35 V 18.12 V 0 V 18.12 V 16.88 V 17.9 V 0 V - -

C333 47 35 V 0 V 0 V 0 V 35 V 0 V 0 V - -

C3A1 47 16 V 3.42 V 0 V 3.42 V 12.58 V 3.4 V 0 V - -

C3A2 47 35 V 0 V -20.6 V 20.6 V 14.4 V 0 V -20.4 V - -

2-43 2-44

PRINTED CIRCUIT BOARD DIAGRAMS1. MAIN P.C. BOARD DIAGRAM (TOP VIEW)

2-45 2-46

MAIN P.C. BOARD DIAGRAM (BOTTOM VIEW)

2-47 2-48

2. SMPS P.C. BOARD DIAGRAM

2-49 2-50

NOTE: WarningParts that are shaded are critical With respect to risk of fire or electrical shock.

3. FRONT P.C BOARD DIAGRAM (TOP VIEW)

FRONT P.C BOARD DIAGRAM (BOTTOM VIEW)

4. FRONT JACK P.C. BOARD DIAGRAM (TOP VIEW)

FRONT JACK P.C. BOARD DIAGRAM (BOTTOM VIEW)

2-51 2-52

2-53 2-54

A

B

E

C

A

B

D

C

A43

A50

463

463

463

A46

300471

262

263

261

260 261

A44

465

462

250

A41

PN202284

284

283

282

463

CABLE1

D

E

A47

463

SMPS

MAIN

FRONTJACK

279

• CABINET AND MAIN FRAME SECTION

SECTION 3. EXPLODED VIEWS

3-1 3-2

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

012

010

012

037

012A

019442

442

A02 A01

A03

001

002

003439

018

013

017

014020

016

440

015

015B

015A

435

026

• DECK MECHANISM EXPLODED VIEW (DP-15T)

3-3 3-4

3-5

825 FM Antenna

801 Owner’s Manual

803A Speaker Packing

803B Speaker Packing

803C Speaker Packing

803 Packing

900 Remote Control

808 Battery

802 Box

804 Bag

824 AM Loop Antenna811 Video Cable

• PACKING ACCESSORY SECTION

3-6

• SPEAKER SECTION

1. FRONT/REAR/CENTER SPEAKER (SH36SD-S)

851

853

854

852

WIRE80 Front SPK Wire (3M)WIRE70 Center SPK Wire (3M)WIRE60 Rear SPK Wire (7M)

A800 Front SPKA600 Rear SPKA700 Center SPK

850A 850B

3-7

2. PASSIVE SUBWOOFER (SH36SD-W)

A900

4-1

[CONTENTS]

DECK MECHANISM PARTS LOCATIONS • Top View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 • Top View(without Tray Disc) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 • Bottom View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

DECK MECHANISM DISASSEMBLY 1. Main Base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 1-1. Clamp Assembly Disc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

1-1-1. Plate Clamp. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31-1-2. Magnet Clamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31-1-3. Clamp Upper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

2. Tray Disc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

3. Base Assembly Sled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4 3-1. Gear Feed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4 3-2. Gear Middle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4 3-3. Gear Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

4. Rubber Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4 5. Frame Assembly Up/Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5 6. Belt Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5 7. Gear Pulley . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5 8. Gear Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5 9. Guide Up/Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5 10. PWB Assembly Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5 11. Base Main . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

EXPLODED VIEW 1. DECK MECHANISM EXPLODED VIEW (DP-15T) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

SECTION 4. MECHANISM (DP-15T)

4-2

DECK MECHANISM PARTS LOCATIONS

NoteWhen reassembling, perform the procedure inreverse order.The “Bottom” on Disassembly column of aboveTable indicates the part should be disassembled at the Bottom side.

• Top View(without Tray Disc)

• Bottom View

• Top ViewStarting No.

1

1, 2

1, 2, 3

1, 2, 3, 4

1

1, 6

1, 2, 6

1, 2, 6, 8

1, 2, 6, 8, 9

1, 2, 7

1, 2, 7

1, 2

1, 2 ,13

1, 2, 13, 14

1, 2, 7, 12,

13, 14

1, 2, 13

1, 2, 7, 12, 13,

14, 15, 16, 17

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

Main Base

Clamp Assembly

Disc

Plate Clamp

Magnet Clamp

Clamp Upper

Tray Disc

Base Assembly Sled

Gear Feed

Gear Middle

Gear Rack

Rubber Rear

Frame Assembly

Up/Down

Belt Loading

Gear Pulley

Gear Loading

Guide Up/Down

PWB Assembly

Loading

Base Main

4 Screws,

1 Connector

1 Locking Tabs

1 Screw

1 Screw

1 Locking Tab

1 Locking Tab

1 Locking Tab

1 Hook

2 Screw

2 Locking Tabs

4-1

4-1

4-1

4-1

4-1

4-2

4-3

4-3

4-3

4-3

4-3

4-4

4-4

4-4

4-4

4-4

4-4

4-4

Bottom

Bottom

ProcedureParts Fixing Type

Fig-ure

Disassembly

4-3

DECK MECHANISM DISASSEMBLY

1. Main Base (Fig. 4-1) 1-1. Clamp Assembly Disc 1) Place the Clamp Assembly Disc as Fig. (A) 2) Lift up the Clamp Assembly Disc in direction of

arrow(A). 3) Separate the Clamp Assembly Disc from the

Holder Clamp. 1-1-1. Plate Clamp 1) Turn the Plate Clamp to counterclockwise

direction and then lift up the Plate Clamp. 1-1-2. Magnet Clamp 1-1-3. Clamp Upper

2. Tray Disc (Fig. 4-2) 1) Insert and push a Driver in the emergency eject

hole(A) at the right side, or put the Driver on theLever(B) of the Gear Emergency and pull the Lever(B) in direction of arrow so that the Tray Disc is ejected about 15~20mm.

2) Pull the Tray Disc until it is separated from the Base Main completely.

MAIN BASE

TRAY DISC

BASE MAIN

LEVER

BASE MAIN

BOTTOM SIDE VIEW

PLATE CLAMP

MAGNET CLAMP

CLAMP UPPER

HOLDER

BASE MAIN

Fig. 4-2Fig. 4-1

(Fig. A)

DISC CLAMP ASSEMBLY

4-4

3. Base Assembly Sled (Fig. 4-3)1) Release 4 Screw(S2).2) Disconnect the FFC Connector(C1)

3-1. Gear Feed 3-2. Gear Middle 3-3. Gear Rack

4. Rubber Rear (Fig. 4-3)

BASE PU

RUBBER DAMPER

RUBBER DAMPER

RUBBER DAMPERDistinguish upper and lower sides(Assemble with care)

Distinguish upper and lower sides(Assemble with care)

RUBBER DAMPER

GEAR RACK

GENERAL PICK UP ASSEMBLY

SPINDLE MOTOR ASSEMBLY

Fig. 4-3

(S2)(S2)

4-5

5. Frame Assembly Up/Down (Fig. 4-4) Note Put the Base Main face down(Bottom Side) 1) Release the screw(S4) 2) Unlock the Locking Tab(L3) in direction of arrow

and then lift up the Frame Assembly Up/Down to separate it from the Base Main.

Note • When reassembling move the Guide Up/Down

in direction of arrow(C) until it is positioned as Fig.(C).

• When reassembling insert (A) portion of the Frame Assembly Up/Down in the (B) portion of the Guide Up/Down as Fig.(B)

6. Belt Loading(Fig. 4-4) Note Put the Base Main on original position(Top Side)7. Gear pulley (Fig. 4-4) 1) Unlock the Locking Tab(L4) in direction of arrow(B) and

then separate the Gear Pulley from the Base Main.

8. Gear Loading (Fig. 4-4)9. Guide Up/Down (Fig. 4-4) 1) Move the Guide Up/Down in direction of arrow(A) as

Fig.(A) 2) Push the Locking Tab(L5) down and then lift up the

Guide Up/Down to separate it from the Base Main. Note When reassembling place the Guide Up/Down as Fig.(C) and move it in direction arrow(B) until it is locked by the Locking Tab(L5). And confirm the Guide Up/Down as Fig.(A)10. PWB Assembly Loading

(Fig. 4-4) Note Put the Base Main face down(Bottom Side) 1) Release 1 Screws(S5) 2) Unlock the Loading Motor (C2) from the Hook (H1) on

the Base Main. 3) Unlock 2 Locking Tabs(L6) and separate the PWB

Assembly Loading from the Base Main.11. Base Main(Fig. 4-4)

GEAR LOADING

GEAR PULLEY

BELT LOADING

PWB ASSEMBLY LOADING

BASE MAIN

GUIDE UP/DOWN

GUIDE UP/DOWN

GUIDE UP/DOWN

UP/DOWN FRAME ASSEMBLY

GUIDE UP/DOWN

BASE MAIN

(L6)

(L4)

(L6)

(H1)(C2)

(S5)(S4)

(S4)

(A)

(A)

(B)

(B)(C)

(L5)

FIG. (A)FIG. (B)

FIG. (C)

(A)

(B)

Fig. 4-4

SCREW INSERTION TORGUE CONTROL

(800gf DOWN)

4-6

012

010

012

037

012A

019442

442

A02 A01

A03

001

002

003439

018

013

017

014020

016

440

015

015B

015A

435

026

DECK MECHANISM EXPLODED VIEW (DP-15T)

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