LG LAD-9600 User manual

AV Multimedia System
SERVICE MANUAL
MODELS : LAD-9600/LAD-9600R
SERVICE MANUAL
P/NO : AFN31223664 NOVEMBER, 2006
ttp://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 MENU WIDE NAVI MENU WIDE NAVI MENU WIDE NAVI MENU
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
El ctrostatically S nsitiv D vic s (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 techni ues should
be used to help reduce the incidence of component damage caused by static electricity.
1. Immediately before handling any semiconductor component or semiconductor-e uipped 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 e uipped 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 gener-
ate 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
Fre uency Response 20 Hz-20 kHz
S/N Ratio 95 dB
Distortion 0.1 %
Channel Separation (1kHz) 70 dB
• RADIO SELECTION
FM
Fre uency Range 87.5-107.9 or 87.5-108 MHz
S/N Ratio 55 dB
Distortion 1.0 %
Usable Sensitivity 12 dBµV
AM (MW)
Fre uency 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
EJECT
DISP OPEN
EQRDS PHONEBANDRSESRC
FLIP TILT
ARROWVOL
12 3 456
78910111213141516171819
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. (Volum )
• Adjust the volume.
• Power off (Press a long time)
• Mute (Press a shot time)
18. ARROW / / / (up/down/l ft/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 e ualizer 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.

1-6
HEAD UNIT MONITOR
VIWIDE NA MENU
12 3
1. WIDE
Change the screen mode.
2. BRIGHT -/+
Adjusts the monitor brightness
3. LCD
DVD VCD DivX

1-7
REMOTE CONTROL
6
7
8
9
10
1
2
3
4
5
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 numb r buttons
• Selects numbered items in the menu.
• Selects a stored radio station fre uency (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.
/ / /
CD MP3 WMA
CD
DVD DivX
DVD
DVD

1-8
CONNECTING THE SYSTEM
Filter Box
Fuse 5A
Radio Antenna
Extension Code
DIMMER
To lighting switch
terminal.
TO BATTERY (+)
To the car battery,
continous +12 V
DC.
GROUND (-)
To the car body.
Microphone
Plug
Microphone
Main unit
Power Cable
(For hide-away unit)
Power Cable
(For main unit)
Main unit/Hide-away unit
Connecting Cable
POWER ANTENNA
pink
Black
Yellow
With the sun visor up, install the microphone.
Hid -away unit
* OPTICAL OUT
(Option)
* 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.

1-9
TO BATTERY (+)
To the car battery,
continous +12 V DC.
GROUND (-)
To the car body.
POWER ANTENNA
To the power
antenna
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.
Not ) Use a Reverse
Extension if needed.
(Page 15)
H. BRK (Hand Brak )
Be sure to wire the hand
break (parking brake) for
safety and preventing
accidents.
Blue/White
Red
Yellow
Black
Blue
Brown
Pink
FRONT LEFT
(Sp ak r)
REAR LEFT
(Sp ak r)
FRONT RIGHT
(Sp ak r)
REAR RIGHT
(Sp ak r)
White/Black
stripe
White
Green
Green/Black
stripe
Gray/Black
stripe
Gray
Violet
Violet/Black
stripe
If your car has th ISO conn ctor, conn ct by using th
ISO conn ctor plug that is in front of th Pow r cabl .
CONNECTING THE SYSTEM

1-10
CONNECTING THE SYSTEM
AUDIO
PRE-OUT
VIDEO IN
AUX IN
REAR OUT
CAM
(R ar Cam ra)
External Power
Amplifier
Auxiliary Devices
VCR
Camcorder
Conn cting th R v rs G ar
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 lead
Reverse Extension Code
R v rs lamp l ad

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
250
251 A41 259
450
453
451
453
452 452
A00
452
452
452 452
271
280
A44
461
461
451
A47
451
450
450
452
452
287
455
452
A49
286
285
451
290
461
A46
A55
461
A45
281 A43
283
282
284
270
A42
273
451 266
454
461
A41
A01
A02
269
461
461
272
267
268
260
261
A40
A54
A48
264
265
263
262
CONNE4
CABL40
CABL20
CABL14
A41 is consisted of
FRONT KE + FRONT EJECT
Assembly.
Therefore, 2EA's PCB Assembly is
supplied if request purchase by
A41's P/No.

2-5 2-6
2. AMP SECTION
458
455
458
458
458
458
458
457
457
456
320
321
323
325
326
327
328
329
324
A50
A52
458

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 TROUBLESHOOTIN UIDE.................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-
6. AUDIO PART............................................................3-8
BLOCK DIA RAMS ......................................................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 .......................................3-1
5. MAIN IN/OUT BLOCK DIAGRAM ..........................3-19
6. MAIN POWER BLOCK DIAGRAM.........................3-21
. TFT LCD BLOCK DIAGRAM..................................3-23
8. TFT LCD POWER BLOCK DIAGRAM ...................3-25
[AMP PART]
9. HIDEAWAY BLOCK DIAGRAM..............................3-2
10. HIDEAWAY POWER BLOCK DIAGRAM .............3-29
CIRCUIT DIA RAMS ....................................................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...........3-3
5. MAIN_CPLD, IO CIRCUIT DIAGRAM ...................3-39
6. MAIN_B/T, E/C, AUDIO CIRCUIT DIAGRAM ........3-41
. MAIN_CORAL-PA CIRCUIT DIAGRAM .................3-43
8. MAIN_DVD CIRCUIT DIAGRAM ...........................3-45
9. MAIN_POWER CIRCUIT DIAGRAM .....................3-4
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 .......3-5
15. HIDEAWAY_LINE DRV, DIFF AMP
CIRCUIT DIAGRAM .............................................3-59
16. HIDEAWAY_POWER CIRCUIT DIAGRAM..........3-61
1 . TUNER CIRCUIT DIAGRAM................................3-63
• WAVEFORMS ..........................................................3-65
• CIRCUIT VOLTA E CHART ...................................3-69
PRINTED CIRCUIT DIA RAMS ...................................3- 3
[MAIN PART]
1. MAIN P.C. BOARD (TOP VIEW)............................3- 3
2. MAIN P.C. BOARD (BOTTOM VIEW)....................3- 5
3. FRONT KEY & EJECT P.C. BOARD
(TOP VIEW)............................................................3-
4. FRONT KEY & EJECT P.C. BOARD
(BOTTOM VIEW)....................................................3-
5. TFT LCD P.C. BOARD (TOP VIEW) ......................3- 9
6. TFT LCD P.C. BOARD (BOTTOM VIEW) ..............3-80
. 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).......................3-8
12. TUNER P.C. BOARD (BOTTOM VIEW)...............3-88

3-2
ELECTRICAL TROUBLESHOOTIN UIDE
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?
NO
NO Insert & lock
CABLE.
NO
YES
NO
Is FRONT PANEL
attached?
NO NO
Do the set operate?
YES
YES
Is LED turned ON?
YES
YES
NO
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?
NO
YES
YES
NO
YES
NO
YES
NO
YES
NO
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? (CN 01 : Pins 3 , 39)
NO
YES
YES
NO
YES
NO
YES
YES
NO
NO
YES
NO
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 CN 01
pins 2, 4, 6, 9, 12?
Do Micom communicates with Main Board?
(IC 02 : Pins 16, 20, 21, 22)
Check Micom(IC 02) and Solve Problem.
Check IC 01 and Solve problem
Does Micom Clock appear at IC 02 pin 44?
Does RGB Signal appear at IC 01
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
CN 05 pins 1, 2, 3, 4 when
press Touch Panel?
Do IC 04 communicates?
(Check IC 04 pins 11, 12)
Check Main Board and
Solve problem.
NO
NO
NO
NO
YES
YES
YES
YES
YES
Check IC 04 & CN 05
and Solve problem.
Is The screen scrolled in uni-
form direction when don’t press
Touch Panel at Navi mode?
Is The screen scrolled in uni-
form 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