LG LAD-9600 Service Manual

AV Multimedia System

SERVICE MANUAL

MODELS : LAD-9600/LAD-9600R

SERVICE MANUAL

P/NO : AFN31223664 NOVEMBER, 2006

http://biz.lgservice.com

MODELS : LAD-9600/LAD-9600R

CAUTION

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

EJECT

EQRDS PHONEBANDRSESRC

ARROW

VOL

WIDE NAVI

TILT DISP CLOSETILFLIP T DISP CLOSETILT DISP CLOSETILFLIP T DISP CLOSE

CONTENTS

SECTION 1 . . . SUMMARY

SECTION 2 . . . CABINET & MAIN CHASSIS

SECTION 3 . . . ELECTRICAL

SECTION 4 . . . CPD-03 DVD/CD CAR MODULE PART

SECTION 5 . . . REPLACEMENT PARTS LIST

1-2

SECTION 1

SUMMARY

CONTENTS

ESD PRECAUTIONS.................................................................................................................. 1-3

SPECIFICATIONS ....................................................................................................................... 1-4

LOCATION OF CUSTOMER CONTROLS .......................................................................... 1-5

1-3

ESD PRECAUTIONS

Electrostatically Sensitive Devices (ESD)

Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive Devices (ESD). Examples of typical ESD devices are integrated circuits and some field-effect transistors and semiconductor chip components. The following techniques should be 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 off any electrostatic charge on your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging wrist strap device, which should be removed for potential shock reasons prior 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" can generate electrical charges sufficient to damage ESD devices.

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

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

7. Immediately before removing the protective material from the leads of a replacement ESD device, touch the protective 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 motion such 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 THE SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICE LITERATURE.

1-4

SPECIFICATIONS

• GENERAL

Output Power 50W x 4CH (Max.) Power Source DC 12V Speaker impedance 4 Ω Ground System Negative Dimensions (W x H x D) 400 x 280 x 55 mm (Main unit) Dimensions (W x H x D) 256.8 x 163.8 x 40 mm (Hideaway unit) Net Weight 2.28 kg (Main unit) Net Weight 1.12 kg (Hideaway unit)

• DISPLAY

LCD 7 inch TFT LCD Resolution 480 X 234 Back Light CCFL type (L-type)

• CD/DVD/VCD SELECTION

Frequency Response 20 Hz-20 kHz S/N Ratio 95 dB Distortion 0.1 % Channel Separation (1kHz) 70 dB

• RADIO SELECTION FM

Frequency Range 87.5-107.9 or 87.5-108 MHz S/N Ratio 55 dB Distortion 1.0 % Usable Sensitivity 12 dBµV

AM (MW)

Frequency Range 520-1720 or 522-1620 kHz S/N Ratio 45 dB Distortion 1.0 % Usable Sensitivity 32 dBµV

1-5

LOCATION OF CUSTOMER CONTROLS

HEAD UNIT FRONT

11. FLIP

Turn the LCD panel horizontal temporarily when the LCD panel is upright.

12. TILT

Adjust the monitor angle.

13. DISPLAY WINDOW

14. DISP

Select a different display.

15. OPEN/CLOSE

Open (or Close) the monitor.

16. DIMMER SENSOR

17. VOL. (Volume)

• Adjust the volume.

• Power off (Press a long time)

• Mute (Press a shot time)

18. ARROW / / / (up/down/left/right)

• Selects the folders (up/down)

• Selects the menus (up/down/left/right)

• Skip (left/right)

• Search (left/right)

• Selects a preset station (up/down)

• Enter

19. REMOTE SENSOR

10. SRC

(Source)

Change the sources.

11. RSE (Rear service)

Plays back two different sources as a main a source and a subsidiary source.

12. BAND

• Select the band.

13. RDS(LAN-9600R ONLY)

• Selects the TA on/off (Press for a short time)

• Selects the AF on/off (Press for a long time)

13. SRS(LAN-9600 ONLY)

• Selects the SRS.

14. PHONE

Select the phone.

15. EQ

Select various equalizer curves.

16. Disc slot

17.

Removes the control panel.

18. EJECT

Eject a disc from the unit,

19. USB port

Pulls the cover on the front.

12 3 456

FLIP TILT

ARROWVOL

78910111213141516171819

DISP OPEN

EJECT

EQRDS PHONEBANDRSESRC

1-6

HEAD UNIT MONITOR

1. WIDE

Change the screen mode.

2. BRIGHT -/+

Adjusts the monitor brightness

3. LCD

VIWIDE NA

12 3

DVD VCD DivX

1-7

REMOTE CONTROL

1. POWER

Switches the unit ON/OFF.

SOURCE

Selects a source. RSE (Rear service) You can play two different sources as main source and secondary source.

2. SKIP

• Go to next (previous) chapter, track or file.

• Return to the beginning of the current chapter, track or file.

SCAN

Backward (Forward) search playback.

STOP PLAY PAUSE

3. SEARCH

Select chapter or title.

4. (up/down/left/right)

• Selects the folders (up/down)

• Selects the menus (up/down/left/right)

• Skip (left/right)

• Search (left/right)

• Selects a preset station (up/down)

ENTER

Confirms menu selection.

5. 0-9 number buttons

• Selects numbered items in the menu.

• Selects a stored radio station frequency (1-6).

REPEAT

• Repeat chapter, track, title or file.

SHUFFLE

• Plays tracks or files in random order.

SCAN

• Plays the first 10 seconds of all track.

AUDIO

• Select audio language.

SUBTITLE

• Select audio subtitle language.

ANGLE

• Select a DVD camera angle if available.

6. BAND

Select FM and MW(AM) bands.

7. DISC MENU

Accesses the menu on a DVD disc.

8. RETURN

Displays the disc menu with PBC.

9. VOLUME

Adjust the volume level.

10. MUTE

Mute the volume.

/ / /

DVD

CD MP3 WMA

DVD DivX

DVD

1-8

CONNECTING THE SYSTEM

Main unit/Hide-away unit Connecting Cable

DIMMER

To lighting switch

terminal.

GROUND (-)

To the car body.

TO BATTERY (+)

To the car battery,

continous +12 V

DC.

pink

Black

Yellow

Fuse 5A

* OPTICAL OUT

(Option)

Main unit

Power Cable (For main unit)

Microphone Plug

Filter Box

Microphone

With the sun visor up, install the microphone.

Hide-away unit

Radio Antenna Extension Code

* Connecting to Optical equipment.

Connecting to an amplifier equipped with two channel digital stereo or to an Audio/Video receiver equipped with a multi-channel decoder.

Power Cable (For hide-away unit)

POWER ANTENNA

1-9

CONNECTING THE SYSTEM

REMOTE ON

To the amplifier

remote on.

TO IGNITION

To the terminal from

which the power is

supplied when the

ignition switch is set

to ACC

REVERSE GEAR

When connecting the

rear view camera,

use the reverse lead.

Note) Use a Reverse

Extension if needed.

(Page 15)

FRONT LEFT

(Speaker)

Blue/White

Red

Pink

White/Black

White

Green/Black

stripe

Yellow

TO BATTERY (+)

To the car battery, continous +12 V DC.

Black

GROUND (-)

To the car body.

Blue

POWER ANTENNA

To the power antenna

Brown

H. BRK (Hand Brake)

Be sure to wire the hand break (parking brake) for safety and preventing accidents.

Gray/Black stripe

Gray

FRONT RIGHT

(Speaker)

Violet/Black stripe

REAR LEFT

(Speaker)

Green

Violet

REAR RIGHT

(Speaker)

If your car has the ISO connector, connect by using the ISO connector plug that is in front of the Power cable.

1-10

CONNECTING THE SYSTEM

REAR OUT

AUDIO PRE-OUT

External Power Amplifier

VIDEO IN

AUX IN

CAM

(Rear Camera)

Auxiliary Devices

Camcorder

VCR

Connecting the Reverse Gear

If using an optional rear view camera, the reverse lead must be connected.

1. Clamp the reversing lamp lead.

2. Clamp firmly with needle-nosed pliers.

Reverse Extension Code

Reverse lead

Reverse lamp lead

2-1

SECTION 2

CABINET & MAIN CHASSIS

CONTENTS

EXPLODED VIEWS ....................................................................................................................2-2

1. CABINET AND MAIN FRAME SECTION ................................................................................2-3

2. AMP SECTION ..........................................................................................................................2-5

3. ACCESSORY SECTION ...........................................................................................................2-7

2-3 2-4

EXPLODED VIEWS

1. CABINET AND MAIN FRAME SECTION

A41 is consisted of FRONT KEY + FRONT EJECT Assembly. Therefore, 2EA's PCB Assembly is supplied if request purchase by A41's P/No.

250

251

A54

451

A40

A41

450

259

453

266

262

454

267

261

A48

268

263

264

260

265

461

A41

269

451

453

272

452

461

CONNE4

CABL40

A02

A01

451

A00

452

450

290

461

450

451

285

A47

452

286

455

287

A49

452

451

452

273

452

A42

270

271

452

280

461

A44

CABL14

284

A46

A55

461

A45

CABL20

461

282

283

281 A43

2-5 2-6

2. AMP SECTION

458

328

458

327

323

455

326

458

324

457

458

457

A52

325

A50

458

329

458

456

321

320

2-7

LOC.No.

DESCRIP

TION

Manual Assembly

801 808 818 831

Battery, Manganese Plate Microphone, Condenser

Harness, Multi Harness, Single Harness, Single

Bracket

840 841 843 845

Bracket Panel, Audio Case Assembly

846 850 851 852

Screw

* OPTIONAL PART

Screw ScrewCase Assembly

Remote Controller

900

3. ACCESSORY SECTION

LOC.No.

DESCRIP

TION

LOC.No.

DESCRIP

TION

LOC.No.

DESCRIP

TION

LOC.No.

DESCRIP

TION

Cable Assembly

834 835 837 838

3-1

SECTION 3

ELECTRICAL

CONTENTS

ELECTRICAL TROUBLESHOOTING GUIDE.................3-2

1. MAIN BOARD PART ................................................3-2

2. LCD PART................................................................3-4

3. SEG LCD PART .......................................................3-6

4. FRONT KEY PART...................................................3-6

5. TUNER PART...........................................................3-7

6. AUDIO PART ............................................................3-8

BLOCK DIAGRAMS ......................................................3-11

1. OVERALL BLOCK DIAGRAM[WITH I/F]................3-11

2. BLOCK DIAGRAM-[H/W] .......................................3-13

3. BLOCK DIAGRAM-[S/W] .......................................3-15

[MAIN PART]

4. MAIN BLOCK DIAGRAM .......................................3-17

5. MAIN IN/OUT BLOCK DIAGRAM ..........................3-19

6. MAIN POWER BLOCK DIAGRAM.........................3-21

7. TFT LCD BLOCK DIAGRAM..................................3-23

8. TFT LCD POWER BLOCK DIAGRAM ...................3-25

[AMP PART]

9. HIDEAWAY BLOCK DIAGRAM..............................3-27

10. HIDEAWAY POWER BLOCK DIAGRAM .............3-29

CIRCUIT DIAGRAMS ....................................................3-31

[MAIN PART]

1. FRONT KEY_FRONT CIRCUIT DIAGRAM ...........3-31

2. FRONT KEY_EJECT CIRCUIT DIAGRAM ............3-33

3. MAIN_CPU CIRCUIT DIAGRAM ...........................3-35

4. MAIN_IDE, MEMORY CIRCUIT DIAGRAM ...........3-37

5. MAIN_CPLD, IO CIRCUIT DIAGRAM ...................3-39

6. MAIN_B/T, E/C, AUDIO CIRCUIT DIAGRAM ........3-41

7. MAIN_CORAL-PA CIRCUIT DIAGRAM.................3-43

8. MAIN_DVD CIRCUIT DIAGRAM ...........................3-45

9. MAIN_POWER CIRCUIT DIAGRAM .....................3-47

10. TFT LCD_LCD DRIVE IC, MICOM

CIRCUIT DIAGRAM .............................................3-49

11. TFT LCD_POWER, TOUCH PANEL

CIRCUIT DIAGRAM .............................................3-51

12. SEG LCD CIRCUIT DIAGRAM ............................3-53

[AMP PART]

13. HIDEAWAY_MICOM CIRCUIT DIAGRAM ...........3-55

14. HIDEAWAY_AUDIO IC CIRCUIT DIAGRAM .......3-57

15. HIDEAWAY_LINE DRV, DIFF AMP

CIRCUIT DIAGRAM .............................................3-59

16. HIDEAWAY_POWER CIRCUIT DIAGRAM..........3-61

17. TUNER CIRCUIT DIAGRAM................................3-63

• WAVEFORMS..........................................................3-65

• CIRCUIT VOLTAGE CHART ...................................3-69

PRINTED CIRCUIT DIAGRAMS ...................................3-73

[MAIN PART]

1. MAIN P.C. BOARD (TOP VIEW)............................3-73

2. MAIN P.C. BOARD (BOTTOM VIEW)....................3-75

3. FRONT KEY & EJECT P.C. BOARD

(TOP VIEW)............................................................3-77

4. FRONT KEY & EJECT P.C. BOARD

(BOTTOM VIEW)....................................................3-77

5. TFT LCD P.C. BOARD (TOP VIEW) ......................3-79

6. TFT LCD P.C. BOARD (BOTTOM VIEW) ..............3-80

7. SEG LCD P.C. BOARD (TOP VIEW) .....................3-81

8. SEG LCD P.C. BOARD (BOTTOM VIEW) .............3-81

[AMP PART]

9. HIDEAWAY P.C. BOARD (TOP VIEW) ..................3-83

10. HIDEAWAY P.C. BOARD (BOTTOM VIEW) ........3-85

11. TUNER P.C. BOARD (TOP VIEW).......................3-87

12. TUNER P.C. BOARD (BOTTOM VIEW)...............3-88

3-2

ELECTRICAL TROUBLESHOOTING GUIDE

1. MAIN BOARD PART

1) POWER ON Error

Disable Power ON?

Insert & lock Power Connector.

Is Power cable locked in CN100?

Is cable normally inserted in CN603?

Insert & lock CABLE.

YES

Is FRONT PANEL attached?

NO NO

Do the set operate?

YES

Is LED turned ON?

YES

Check state of FRONT FPC.(open, connection and etc)

Change FPC.

YES

Is LED turned ON?

Check the part of Power module-IC100, IC102. (REF:Diagram of voltage)

Check the TILT MECHA.

YES

3-3

Check around IC303.

DISC IN/OUT Error?

Is there “LG LOGO” in RSE monitor?

YES

Check around IC100.“9V” is supplied to L101?

Insert & Check.Is FFC of CN604 normally inserted?

Check.

Check around IC615 and Pushed any key.

Is EJECT KEY CABLE normally inserted at connector?

Is the BEEP SOUND generated when EJECT KEY is pused?

Check the DECK.

1. MAIN BOARD PART

2) DISC IN/OUT Error

3-4

Check Main Board Power(IC100, IC102) and Solve a Problem.

Screen don’t Turn on.

Are V9.0_LCD, V5.0_DA & V5.0_D normal

values? (CN701 : Pins 37, 39)

YES

Check Inverter Module and Solve a Problem.

Is TFT LCD Harness a normal state? (AC power)

Check whether Main Board is normal or not and whether FPC Cable is down or not and Solve problem.

Do RGB & Sync Signal appear at CN701 pins 2, 4, 6, 9, 12?

Do Micom communicates with Main Board? (IC702 : Pins 16, 20, 21, 22)

Check Micom(IC702) and Solve Problem.

Check IC701 and Solve problem

Does Micom Clock appear at IC702 pin 44?

Does RGB Signal appear at IC701 pins 90, 93, 94?

Defective TFT LCD

2. LCD PART

1) TFT LCD Trouble

3-5

Touch Panel don’t respond.

Is the change of Pulse at CN705 pins 1, 2, 3, 4 when press Touch Panel?

Do IC704 communicates? (Check IC704 pins 11, 12)

Check Main Board and Solve problem.

YES

Check IC704 & CN705 and Solve problem.

Is The screen scrolled in uniform direction when don’t press Touch Panel at Navi mode?

Is The screen scrolled in uniform direction when press Touch Panel at Navi mode?

Defective Touch Panel.

Check defective Case of TFT LCD Module.

Calibrate Touch Panel.

2) When Touch panel don’t respond

3-6

SEG LCD don’t turn on.

Do INV_PWR turn on? (CN801 : pins 6, 7)

V10_LED On? (CN801 : pins 10, 11)

Check TFT LCD Board and FFC.

YES

YESYES

YES

Check Q704 at TFT LCD Board.

Do V5.0_D turn on? (CN801 : pins 8, 9)

Check TFT LCD Board.

Do IC801 appear a normal signal?

YES

Check SEG.

Check IC801.

3. SEG LCD PART

1) When SEG LCD don’t turn on

4. FRONT KEY PART

1) When KEY don’t respond

Check IC615.

KEY don’t respond.

Do KEY Scan-Out Pulse appear at IC615 pins 109~114?

YES

Check the defect of Key.

Do KEY Scan-In Pulse appear at IC615 pins 118~122 when don’t press any Key?

Some KEY is pressed.

3-7

FM/AM is not work.

CHECK R5746, R5713 VOLTAGE 8~9V.

CHECK R5714, R5715 VOLTAGE 5V.

Check Audio Board IC520 OUTPUT and Q532.

YES

Check Audio Board IC521 OUTPUT.

CHECK DATA SIGNAL R5716, R5717, R5728, R5729 (belong to RDS/TMC operation).

Check connection of CN503.

CHECK DATA SIGNAL R5718, R5719, R5720, R5721.

YES

• Defective TUNER

• Exchange Tuner assy.

Check connection of CN503.

CHECK AUDIO MICOM, IC501.

5. TUNER PART

3-8

6. AUDIO PART

1) NO POWER

POWER

RESET KEY

YES

Check reset IC (IC502)

Check MICOM power supply

(IC522 PIN3)

Defective X-TAL (X501)

Check ACC input signal path

(Q515, CN501 PIN9, JT5111)

Does reset signal appear? (IC502 PIN3)

Is power supplied to MICOM(IC501)?

YES

Does clock waveform appear? (X501)

YES

Does ACC signal applied to MICOM? (IC501 PIN21)

MICOM FLASH RE-DOWNLOAD

(CN500)

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