LG LAN-8680MH Service Manual Download Page 78

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- 9-10 -

❏

FRONT PART

• LCD SCREEN (1)

LCD SCREEN DEAD.

CHECK POWER ICs OF
AUDIO BOARD
(IC902,IC903,IC904).

CHECK THE SOLDER
BADNESS OF LEAD ON
IC803 , PN805,PN806.

CHANGE MAIN PCB.

CHECK THE SOLDER
BADNESS OF LEAD AND
FPC CABLE SHORT.

POWER ON TO

LCD_8V & BL_8V?

(PN801(PIN 3,4,19 )).

DIM ON SIGNAL IS

OUTPUT?

PN801(5,7PIN : HIGH).

RGB IS OUTPUT?

(PINS 1,2,3 OF PN806).

FPC CABLE SHORT OR

SOLDER BADNESS OF LEAD

REMAIN?(PN801,

PN805,PN806).

CHANGE LCD MODULE.

YES

Summary of Contents for LAN-8680MH

Page 1: ...d dangerous area information are not newly updated You must periodically update the map data Refer to the homepage for details on how to update the data http www motrex co kr If you have other questions about the Navigation Device please refer to troubleshooting Guide or contact your supplier or Technical Support GUIDANCE MODEL LAN 8680MH LAN 8681MH LAN8682MH ...

Page 2: ...CTION 2 NAME OF EACH PART SECTION 3 TOTAL WIRING BLOCK DIAGRAMS SECTION 4 EXPLODED VIEWS SECTION 5 FRONT PART SECTION 6 MAIN PATR SECTION 7 AUDIO PART SECTION 8 POWER PART SECTION 9 TROUBLESHOOTING GUIDE SECTION 10 REPLACEMENT PARTS LIST ...

Page 3: ... CONTENTS SPECIFICATION 1 1 SECTION 1 SPECIFICATION ...

Page 4: ... kHz S N Ratio 65 dB Distortion 1 Channel Separation 1kHz 60 dB RADIO SELECTION FM Frequency Range 87 5 108 MHz S N Ratio 60 dB Distortion 0 5 Usable Sensitivity 10 dBµV AM Frequency Range 531 1602 kHz S N Ratio 50 dB Distortion 1 0 Usable Sensitivity 30 dBµV NAVIGATION SELECTION CPU Renesas SH 7760 200 MHz 360MIPS OS QNX v 6 2 1B SDRAM 128 MB Memory Map 512 MB CFC Memory OS 64 MB NOR Flash Graphi...

Page 5: ... 1 2 ...

Page 6: ... CONTENTS FRONT 2 1 REAR CONNECTION DIAGRAM 2 2 CONNECTOR TERMINAL FUNCTION 2 3 SECTION 2 NAME OF EACH PART ...

Page 7: ... the navigation map PHONE Selects the phone MAKKAH The disrection always showns the makkah s position AUX Selects the compoent connected to the AUX IN jack INFO Changes the display setup AV OFF Audio and video pause OPEN Opens the monitor TILT Adjusts monitor angle LCD OFF Turns off the LCD power RESET If the unit fails to operate properly press the rest button using a ball point pen or a similar ...

Page 8: ... 2 2 REAR CONNECTION DIAGRAM Radio ANT GPS ANT 24 PIN CONNECTOR A B 32 PIN CONNECTOR TV ANT ...

Page 9: ...GND 9 EQ SEL 21 NC 10 AMP ON 22 NC 11 ACC 23 ANT B 12 BATT B 24 GND Terminal Name Terminal Name 1 GND 17 NC 2 MIC GND 18 NC 3 EXT MIC 19 AUX V IN 4 AUX IN 20 AUX R IN 5 GND 21 NC 6 NC 22 GND 7 CAMERA REQ 23 ALT L 8 NC 24 SPEED 9 NC 25 IND 10 AUTO LIGHT 26 GND 11 REAR CAM 27 NC 12 NC 28 GND 13 NC 29 NC 14 NC 30 B CAMERA 15 NC 31 GND 16 NC 32 REVERSE A 32 PIN CONNECTOR A 32 PIN CONNECTOR TERMINAL FU...

Page 10: ... 2 4 ...

Page 11: ... CONTENTS WIRING DIAGRAM 3 1 BLOCK DIAGRAMS 3 2 SECTION 3 TOTAL WIRING BLOCK DIAGRAMS ...

Page 12: ... 3 1 WIRING DIAGRAM LAN8680MH ...

Page 13: ... 3 2 BLOCK DIAGRAM H W ...

Page 14: ... 3 3 BLOCK DIAGRAM S W Destination ...

Page 15: ... 3 4 ...

Page 16: ... CONTENTS FRONT PART 4 1 CABINET MAIN FRAME PART 4 2 EXPLODED VIEWS REPLACEMENT PARTS LIST 4 3 SECTION 4 EXPLODED VIEWS ...

Page 17: ...458 459 459 257 257 A42 A41 253 455 259 A43 454 454 454 458 458 252 250 457 457 256 256 251 455 A42 When do P O Caution A42 Front Trim and GPS Assembly compose Therefore 3EA S PCB Assembly is supplied if request purchase by A42 s P N ...

Page 18: ... 454 454 454 454 454 454 458 456 A42 A48 A46 A47 A50 A51 272 454 A45 A44 A52 291 283 451 281 282 290 460 454 460 454 453 453 454 454 Option When do P O Caution A42 Front Trim and GPS Assembly compose Therefore 3EA S PCB Assembly is supplied if request purchase by A42 s P N ...

Page 19: ... 4 4 ...

Page 20: ... CONTENTS FRONT SCHEMATIC DIAGRAM 5 1 TRIM SCHEMATIC DIAGRAM 5 2 FRONT TRIM PRINTED CIRCUIT BOARDS 5 3 SECTION 5 FRONT PART ...

Page 21: ... 5 1 FRONT SCHEMATIC DIAGRAM ...

Page 22: ... 5 2 TRIM SCHEMATIC DIAGRAM ...

Page 23: ... 5 3 FRONT TRIM PRINTED CIRCUIT BOARDS LOWER SIDE UPPER SIDE ...

Page 24: ... 5 4 ...

Page 25: ...APHIC IC 6 5 MAIN SCHEMATIC DIAGRAM KEY BUFFER UARTC AUDIO BUFFER 6 6 MAIN SCHEMATIC DIAGRAM GPS CFC TOUCH CONTROLLER 6 7 MAIN SCHEMATIC DIAGRAM CPLD 6 8 MAIN SCHEMATIC DIAGRAM 32PIN CON INTERFACE 6 9 MAIN WAVEFORMS 6 10 IC CONNECTOR VOLTAGE SHEET 6 11 MAIN PRINTED CIRCUIT BOARD UPPER SIDE 6 18 MAIN PRINTED CIRCUIT BOARD LOWER SIDE 6 19 SECTION 6 MAIN PART ...

Page 26: ... 6 1 MAIN BLOCK DIAGRAM ...

Page 27: ... 6 2 MAIN POWER BLOCK DIAGRAM ...

Page 28: ... 6 3 MAIN SCHEMATIC DIAGRAM CPU 3 4 6 7 2 1 5 ...

Page 29: ... 6 4 MAIN SCHEMATIC DIAGRAM FLASH SDRAM 8 ...

Page 30: ... 6 5 MAIN SCHEMATIC DIAGRAM GRAPHIC IC 9 10 11 12 13 ...

Page 31: ... 6 6 MAIN SCHEMATIC DIAGRAM KEY BUFFER UARTC AUDIO BUFFER 15 14 ...

Page 32: ... 6 7 MAIN SCHEMATIC DIAGRAM GPS CFC TOUCH CONTROLLER 16 17 ...

Page 33: ... 6 8 MAIN SCHEMATIC DIAGRAM PLD DVD TV BUZZER FAN 18 ...

Page 34: ... 6 9 MAIN SCHEMATIC DIAGRAM 32PIN CON INTERFACE 19 ...

Page 35: ... 6 10 MAIN WAVEFORMS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 ...

Page 36: ...L4 H L P3 1 5 A18 H L C1 H L D4 H L E19 H L H18 H L L17 H L P4 0 A19 1 5 C2 H L D5 H L E20 H L H19 H L L18 H L P17 0 A20 H L C3 0 D6 H L F1 H L H20 H L L1 H L P18 1 5 B1 H L C4 H L D7 0 F2 H L J1 H L L20 H L P19 NC B2 0 C5 H L D8 H L F3 H L J2 H L M1 H L P20 NC B3 1 5 C6 H L D9 0 F4 NC J3 H L M2 H L R1 H L IC401 PIN VOLTAGE PIN VOLTAGE PIN VOLTAGE PIN VOLTAGE PIN VOLTAGE R2 H L U9 H L V12 3 3 W15 ...

Page 37: ... H L 17 NC 40 H L 18 H L 41 H L 19 H L 42 H L 20 H L 43 3 3 21 H L 44 H L 22 H L 45 H L 23 H L 46 H L IC409 IC410 IC411 IC412 IC419 IC420 PIN VOLTAGE PIN VOLTAGE PIN VOLTAGE 1 3 3 24 H L 47 H L 2 H L 25 H L 48 H L 3 3 3 26 H L 49 3 3 4 H L 27 3 3 50 H L 5 H L 28 0 51 H L 6 0 29 H L 52 0 7 H L 30 H L 53 H L 8 H L 31 H L 54 0 9 3 3 32 H L 10 H L 33 H L 11 H L 34 H L 12 0 35 H L 13 H L 36 H L 14 3 3 ...

Page 38: ... H L A19 NC C2 0 D5 0 E20 H L H19 H L L18 H L P17 H L A20 0 C3 H L D6 H L F1 H L H20 H L L19 H L P18 1 8 B1 H L C4 0 D7 0 F2 H L J1 H L L20 H L P19 H L B2 0 C5 1 1 D8 0 F3 H L J2 H L M1 H L P20 H L B3 0 C6 3 3 D9 3 3 F4 0 J3 H L M2 H L R1 H L IC418 PIN VOLTAGE PIN VOLTAGE PIN VOLTAGE PIN VOLTAGE PIN VOLTAGE R2 H L U9 H L V12 3 3 W15 H L Y18 H L R3 H L U10 H L V13 0 W16 H L Y19 H L R4 H L U11 H L V...

Page 39: ...6 H L 7 H L 8 H L 9 NC 10 0 11 0 12 H L 13 H L 14 H L 15 H L 16 H L 17 H L 18 H L 19 0 20 3 3 IC431 PIN VOLTAGE 1 ANALOG 2 ANALOG 3 5 4 0 5 NC 6 NC 7 NC 8 10 IC467 PIN VOLTAGE 1 0 2 H L 3 3 3 4 H L 5 H L 6 H L 7 H L 8 H L IC464 PIN VOLTAGE 1 NC 2 NC 3 NC 4 0 5 3 3 6 H L 7 H L 8 10 IC461 PIN VOLTAGE 1 10 2 0 3 5 IC465 PIN VOLTAGE 1 H L 2 H L 3 5 4 0 5 0 6 H L 7 H L 8 10 IC468 PIN VOLTAGE 1 H L 2 AN...

Page 40: ... L 85 0 108 H L 131 H L 17 0 40 H L 63 H L 86 H L 109 H L 132 H L 18 H L 41 H L 64 0 87 H L 110 H L 133 H L 19 H L 42 H L 65 H L 88 H L 111 H L 134 H L 20 H L 43 H L 66 H L 89 H L 112 H L 135 0 21 H L 44 H L 67 H L 90 H L 113 H L 136 H L 22 H L 45 H L 68 H L 91 H L 114 0 137 H L 23 H L 46 H L 69 H L 92 H L 115 3 3 138 H L PN401 PIN VOLTAGE PIN VOLTAGE 1 ANALOG 24 H L 2 ANALOG 3 ANALOG 4 H L 5 H L ...

Page 41: ... 39 NC 17 0 40 NC 17 NC 40 H L 17 H L 40 NC 18 H L 41 H L 18 NC 18 0 19 H L 42 H L 19 NC 19 H L 20 H L 43 NC 20 NC 20 H L 21 H L 44 H L 21 NC 21 H L 22 H L 45 NC 22 0 22 H L 23 H L 46 NC 23 0 23 0 PN404 PIN VOLTAGE PIN VOLTAGE 1 H L 24 H L 2 H L 25 H L 3 0 26 NC 4 H L 27 0 5 H L 28 H L 6 0 29 0 7 H L 30 H L 8 0 9 H L 10 H L 11 0 12 NC 13 NC 14 H L 15 0 16 NC 17 NC 18 NC 19 H L 20 H L 21 H L 22 H L...

Page 42: ...10 5 H L 5 ANALOG 5 12V 28 NC 6 0 6 0 6 H L 6 0 6 ANALOG 29 ANALOG 7 NC 7 4 7 ANALOG 7 ANALOG 7 H L 30 ANALOG 8 NC 8 0 8 ANALOG 8 ANALOG 8 NC 31 NC 9 H L 9 3 3 9 0 9 H L 9 NC 32 NC 10 0 10 3 3 10 NC 10 H L 10 H L 11 NC 11 NC 11 NC 11 NC 12 0 12 NC 12 0 12 0 13 14 13 5V 13 ANALOG 14 0 14 5V 14 ANALOG 15 1 5 15 12V 15 0 16 1 5 16 12V 16 0 17 0 17 0 17 H L 18 1 8 18 0 18 0 19 1 8 19 H L 19 NC 20 NC 2...

Page 43: ... 6 18 MAIN PRINTED CIRCUIT BOARD UPPER SIDE ...

Page 44: ... 6 19 MAIN PRINTED CIRCUIT BOARD LOWER SIDE ...

Page 45: ... 6 20 ...

Page 46: ...ING 7 5 AUDIO POWER BLOCK DIAGRAM AUDIO POWER MAIN 7 6 AUDIO POWER BLOCK DIAGRAM AUDIO POWER SUB I 7 7 AUDIO POWER BLOCK DIAGRAM AUDIO POWER SUB 2 7 8 AUDIO WAVEFORMS 7 9 LAN 8680MH CONNECTOR 24 PIN PIN DESCRIPTION 7 10 AUDIO IC CONNECTOR VOLTAGE SHEET 7 11 AUDIO PRINTED CIRCUIT BOARD UPPER SIDE 7 12 AUDIO PRINTED CIRCUIT BOARD LOWER SIDE 7 13 SECTION 7 AUDIO PART ...

Page 47: ... 7 1 AUDIO BLOCK DIAGRAM ...

Page 48: ... 7 2 AUDIO POWER BLOCK DIAGRAM ...

Page 49: ... 7 3 AUDIO SCHEMATIC DIAGRAM MICOM 5 7 8 6 4 3 1 2 ...

Page 50: ... 7 4 AUDIO SCHEMATIC DIAGRAM EQ 9 10 ...

Page 51: ... 7 5 AUDIO SCHEMATIC DIAGRAM PLL SLIDING 14 15 11 12 13 ...

Page 52: ... 7 6 AUDIO SCHEMATIC DIAGRAM AUDIO POWER MAIN ...

Page 53: ... 7 7 AUDIO SCHEMATIC DIAGRAM AUDIO POWER SUB I ...

Page 54: ... 7 8 AUDIO SCHEMATIC DIAGRAM AUDIO POWER SUB 2 ...

Page 55: ... 7 9 AUDIO WAVEFORMS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ...

Page 56: ... OUTPUT O FRONT_R 14 FRT LH SPEAKER AUDIO SIGNAL OUTPUT O FRONT_L 13 B POWER SOURCE INPUT I BATT_B 12 ACCESSORY POWER SOURCE I ACC 11 AMP ON OFF SIGNAL ON 12V OFF GROUND O AMP_ON 10 EQ SEL SIGNAL O EQ_SEL 9 8 X X N C N C 7 AUDIO S Remocon I AUDIO_REMOTE 6 ILLUMINATION POWER SOURCE I ILL 5 RR LH SPEAKER AUDIO SIGNAL OUTPUT O REAR__L 4 RR RH SPEAKER AUDIO SIGNAL OUTPUT O REAR__R 3 FRT RH SPEAKER AUD...

Page 57: ... H L 120 GND 140 2 9V H L 20 H L 19 H L 18 H L 17 H L 16 H L 15 N C 14 N C 13 4V 12 GND 11 H L 30 N C 10 H L 29 GND 9 GND 28 GND 8 4V 27 H L 7 CLOCK 26 H L 6 H L 25 H L 5 H L 24 H L 4 H L 23 H L 3 H L 22 H L 2 H L 21 4V 1 VOLTAGE PIN VOLTAGE PIN IC417 9V 20 N C 19 N C 18 H L 17 GND 36 GND 16 9V 35 N C 15 9V 34 H L 14 5V 33 GND 13 H L 32 H L 12 GND 31 H L 11 H L 30 N C 10 5V 29 GND 9 GND 28 N C 8 N...

Page 58: ... 7 12 AUDIO PRINTED CIRCUIT BOARD UPPER SIDE ...

Page 59: ... 7 13 AUDIO PRINTED CIRCUIT BOARD LOWER SIDE ...

Page 60: ... 7 14 ...

Page 61: ...CHEMATIC DIAGRAM POWER LINE 8 1 POWER SCHEMATIC DIAGRAM ECHO CANCELLER 8 2 POWER IC CONNECTOR VOLTAGE SHEET 8 3 POWER PRINTED CIRCUIT BOARD UPPER SIDE 8 4 POWER PRINTED CIRCUIT BOARD LOWER SIDE 8 5 SECTION 8 POWER PART ...

Page 62: ... 8 1 POWER SCHEMATIC DIAGRAM POWER LINE ...

Page 63: ... 8 2 POWER SCHEMATIC DIAGRAM ECHO CANCELLER ...

Page 64: ..._PCM_SYNC 7 BT_RESET 8 NC 9 NC 10 NC 11 NC 12 NC 13 Ear_Sel 14 GND 15 Cell_MIC 16 GND 17 Cell_SPK 18 GND 19 Ear_Out 20 GND 21 NC 22 GND 23 VREF 24 NC 25 AEC_TX 26 AEC_RX 27 AEC_BIT 6 28 GND 29 EC_CLK_IN 30 NC 31 PHONE_OUT 32 NC 33 MIC_IN 34 GND 35 NC 36 SH_SDA0 37 SH_SCL0 38 GND 39 NC 40 EC_RESET IC809 PIN VOLTAGE 1 4 9 2 0 3 2 5 IC811 PIN VOLTAGE 1 3 4 2 3 4 3 1 5 4 1 2 5 0 IC815 PIN VOLTAGE PIN ...

Page 65: ... 8 4 POWER PRINTED CIRCUIT BOARD UPPER SIDE ...

Page 66: ... 8 5 POWER PRINTED CIRCUIT BOARD LOWER SIDE ...

Page 67: ... 8 6 ...

Page 68: ... CONTENTS GENERAL PART NAVIGATION 9 1 AUDIO PART 9 6 FRONT PART 9 10 TV PART 9 15 DVD PART 9 17 GYRO SENSOR PART 9 18 GPS PART 9 19 SECTION 9 TROUBLESHOOTING GUIDE ...

Page 69: ...de You can hear the voice guide when you select the MENU SETUP Volume But during actual driving the voice guide is provided If the volume is too low adjust the volume on the left side If the volume is mute press the AV OFF button on the right side There is a difference between the driving road and the road on the map in the product Even though GPS is usually very accurate it has an error range Whe...

Page 70: ...s mentioned the GPS used by this Mobile Navigation System are susceptible to certain errors Their calculations may on occasion place you in a location on the map where no road exists In this situation the processing system understands that vehicles travel only on roads and is able to correct your position by adjusting it to a nearby road This is called map matching What is GPS What is GPS The Glob...

Page 71: ...y The disc is dirty The loaded disc is of a type this unit cannot play Cables are not connected correctly The volume level is too low This unit is not firmly secured Battery power is low Some operations on certain discs are limited Confirm once more that all connections are correct Rectify the problem that caused the fuse to blow and then replace it Be very sure to install the correct fuse with th...

Page 72: ...ük 8679 Welsh 6789 Wolof 8779 Xhosa 8872 Yiddish 7473 Yoruba 8979 Zulu 9085 Language Code Lingala 7678 Lithuanian 7684 Macedonian 7775 Malagasy 7771 Malay 7783 Malayalam 7776 Maltese 7784 Maori 7773 Marathi 7782 Moldavian 7779 Mongolian 7778 Nauru 7865 Nepali 7869 Norwegian 7879 Oriya 7982 Panjabi 8065 Pashto Pushto 8083 Persian 7065 Polish 8076 Portuguese 8084 Quechua 8185 Rhaeto Romance 8277 Rum...

Page 73: ...ing to bluetooth phone features As difference in functional operation are mainly resulted from the features of a hand free phone consult manufacturer of the phone if you have any guestion Manufacturer Nokia Samsung Motorola Model 3230 6021 6230 6230i 6680 8800 N70 9300i 9500 SGH Z500 SGH E7700 SGH D500 SGH VD500 SGH E720 L6 L7 V3 E1 Manufacturer Sony Ericsson LG Sagem Model W550i W810i K700i K750i...

Page 74: ..._BACKUP CHECK CHECK X TAL X101 NO NO NO PRESS RESET KEY YES YES POWER DEAD MICOM FLASH RE DOWNLOAD USE CN101 PN804 POWER DEAD PRESS RESET KEY IS MICOM RESET CHECK RESET IC IC101 TR Q407 VOLTAGE CHECK TP463 MICOM_BACKUP CHECK CHECK X TAL X101 NO NO NO YES YES YES MICOM IC110 POWER INPUT WORKS NORMAL IS X TAL WORKS NORMAL MICOM FLASH RE DOWNLOAD USE CN101 PN804 ...

Page 75: ... 9V IC Voltage Check NO CHECK TRANSISTOR CONTROL Q457 458 CHECK MICOM PORT T543 NO CHECK OUTPUT TERMINAL SHORT NO AUDIO OUTPUT DEAD CHECK CABLE CONNECTION IF DEFECTIVE CHANGE CABLE CHECK 3 3V REGULATOR OF POWER B D IS PROPERLY WORK POWER IC820 CHECK OUTPUT PIN SHORT 9V VOLTAGE CHECK AUDIO_SUB_POWER 9V IC VOLTAGE CHECK CHECK TRANSISTOR CONTROL Q457 458 CHECK MICOM PORT T543 CHECK OUTPUT TERMINAL SH...

Page 76: ...OLUMEL LEVEL TONE CONTROL AND BALANCE FADER SETTING CHECK SHORT TEST FOR EACH OUTPUT TERMINAL AND OUTPUT PATH CIRCUIT CHECK VOLUME CONTROL WORKS NORMAL EACH CANNEL MAX OUTPUT IS NORMAL REPLACE AUDIO FREE AMP IC SOUND TONE SETTING IS CORRECT SOUND TONE SETTING IS CORRECT YES YES YES YES NO NO NO ...

Page 77: ...ER IC303 IS BADNESS IC417 DEFECTIVE CHECK REPLACE BOTTOM CHASSIS MOTOR CONNECTOR IS CONNECTED NORMAL SLIDING KEY INPUT IS NORMAL IC417 PIN29 30 T603 604 MOTOR DRIVING SIGNAL INPUT IS NORMAL CN302 PIN 1 2 MOTOR DRIVING IC WORKS NORMAL IC303 PIN 4 7 9 13 SLIDING MICOM IC WORKS NORMAL IC417 PIN 15 19 PHOTO INTERRUPT SIGNAL INPUT IS NORMAL IC417 PIN4 5 T706 707 YES YES YES YES YES YES YES NO NO NO NO ...

Page 78: ...LEAD ON IC803 PN805 PN806 CHANGE MAIN PCB CHECK THE SOLDER BADNESS OF LEAD AND FPC CABLE SHORT POWER ON TO LCD_8V BL_8V PN801 PIN 3 4 19 DIM ON SIGNAL IS OUTPUT PN801 5 7PIN HIGH RGB IS OUTPUT PINS 1 2 3 OF PN806 FPC CABLE SHORT OR SOLDER BADNESS OF LEAD REMAIN PN801 PN805 PN806 CHANGE LCD MODULE YES YES YES YES NO NO NO NO ...

Page 79: ... 2 LCD SCREEN SYNC HAZARD CHECK SOLDER BADNESS OF PN806 PN401 R526 MAIN PART CHECK FPC CABLE SHORT LCD_SYNC SIGNAL OUTPUT IS DETECTED 15 75KHZ CHECK POINT PN801 18PIN FPC CABLE SHORTED REPLACE LCD MODULE YES YES NO NO ...

Page 80: ...K SOLDER BADNESS OF BUTTON CHECK FPC CABLE SHORTAGE CHECK SOLDER BADNESS OF IC IC429 OR IC110 WHEN PRESS KEY DO PN802 S VOLTAGE DROP CHECK SOLDER BADNESS OF LEAD ON IC IC429 MAIN OR IC110 AUDIO CHANGE THE IC IC430 OR IC101 YES YES NO NO ...

Page 81: ... 9 13 LED LIGHT FAILURE LED LIGHT FAILURE CHECK SOLDER BADNESS OF LEAD ON CONNECTORS IC103 PN802 PN805 CHECK SOLDER BADNESS OF LEAD ON LED AND LINE RESISTOR CHANGE LED YES YES ...

Page 82: ...E S CHANGE WHEN PRESS TOUCH PANEL PN802 PINS 10 11 13 IF IS NORMALLY REASSEMBLING TOUCH FPC CHANGE TOUCH PANEL CHECK SOLDER BADNESS OF LEAD THEN CONFIRM WHETHER X404 PIN3 OUTPUT IS 14 31818MHZ ARE NO SOLDER BADNESS OF IC433 X404 CHANGE IC433 YES YES NO NO ...

Page 83: ...RTS FAILURE CHECK IC477 PERIPHERAL PARTS FAILURE CHECK IC433 PN404 CONN CABLE CONNECTION CHECK TV MODULE FAILURE CHECK TV DISPLAY DEAD SOUND DEAD TV DISPLAY WHITE NOISE TV DISPLAY DEAD TV SOUND DEAD TV MODULE FAILURE CHECK LCD GRAPHIC CONT FAILURE CHECK IC401 FAILURECHECK LOW LOW LOW NO NO NO NO NO NO NO HIGH 3V HIGH 3V HIGH 3V NO NO YES YES YES YES YES YES YES YES YES IC477 I O CHECK PN415PIN15 V...

Page 84: ...NGE END TV DISPALY CHANGE PN415 PINS 13 15 16 VOLTAGE OK IC432 COMMUNICATION I O CHECK TV MODULE ASSEMBLE STATUS CHECK SET POWER PARTS FAILURE CHECK IC432 PART FAILURE CHECK TV CARD CONNECTION PROBLEM POP UP HAPPENED ASSEMBLE FAILURE TV MODULE FAILURE CHECK YES YES NO NO NO YES YES YES ...

Page 85: ... SCREEN FAILURE PN409 PN411 CONNECTION ERROR IC453 IS BAD IC453 IS BAD PN404 CONNECTION ERROR AUDIO BOARD CHECK DECK IS BAD NO NO NO NO PN406 POWER TERMINAL CHECK 1 2 10V 5 6 1 8V 7 8 3 3V 11 12 5V SCREEN IS CHANGED BUT DVD AND CD IS SILENT ...

Page 86: ...IRECTION DETECTION OF VEHICLES RUNNING DOES NOT BECOME PN406 BAD SOLDERING 5V POWER SUPPLIED AT PIN 1 OF PN406 AUDIO BOARD 5V POWER TERMINAL BADNESS CHNAGE GYRO MODULE PN408 PIN 2 CLOCK WAVE FORM IS OUTPUT CHANGE GPS MODULE NO NO YES YES YES YES ...

Page 87: ...GPS PART GPS REPAIR GPS SIGNAL RECEIVE FAILURE PN405 BAD SOLDERING 3 3V POWER SUPPLIED TO PN405 PINS 1 2 POWER B D 3 3V BAD POWER TERMINAL 3 3V WAVEFORM IS OUTPUT ON PN405 PIN4 BAD GPS MODULE YES YES NO NO NO ...

Page 88: ... 9 20 ...

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