LG CHAMELEON V 32LD320H Service Manual Download Page 39

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D. General Function Problem

Remote control & Local switch checking

1. Remote control(R/C) operating error

Move

Power problem

Section

2. Local(Mechanical) switch operating error

Check R/C itself

Operation

Normal

operating?

Normal

operating?

Close

Replace R/C

If R/C operate,

Explain the customer

cause is interference

from light in room.

Check R/C Operating

When turn off light

in room

Check & Replace

Baterry of R/C

Check & Repair

Cable connection

Connector solder

Normal

operating?

Normal

Voltage?

Close

Check 5v on Power B/D

Replace Power B/D or

Replace Main B/D

(Power B/D don’t have problem)

Normal

Signal?

Check R/C

Operation

Normal

operating?

Check & Repair

Cable connection

Connector solder

Normal

operating?

Close

Check & Replace

Assembly status

(Key PCB + tool )

Normal

operating?

Close

Normal

Signal?

Standard Repair Process

Established

date

Electronics 6-3

Revised date

2010. 07 .27

10/13

LCD TV

Error

symptom

Summary of Contents for CHAMELEON V 32LD320H

Page 1: ...EAD THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS LD91X MODEL 32LD320H 32LD320H TA North Latin America http aic lgservice com Europe Africa http eic lgservice com Asia Oceania http biz lgservice com Internal Use Only Printed in Korea P NO MFL62461527 1007 REV00 ...

Page 2: ...nly Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes 2 CONTENTS CONTENTS 2 PRODUCT SAFETY 3 SPECIFICATION 6 ADJUSTMENT INSTRUCTION 9 BLOCK DIAGRAM 14 EXPLODED VIEW 15 SVC SHEET ...

Page 3: ...heck Antenna Cold Check With the instrument AC plug removed from AC source connect an electrical jumper across the two AC plug prongs Place the AC switch in the on position connect one lead of ohm meter to the AC plug prongs tied together and touch other ohm meter lead in turn to each exposed metallic parts such as antenna terminals phone jacks etc If the exposed metallic part has a return path to...

Page 4: ... on your body by touching a known earth ground Alternatively obtain and wear a commercially available discharging wrist strap device which should be removed to prevent potential shock reasons prior to applying power to the unit under test 2 After removing an electrical assembly equipped with ES devices place the assembly on a conductive surface such as aluminum foil to prevent electrostatic charge...

Page 5: ...the solder joints of the two original leads If they are not shiny reheat them and if necessary apply additional solder Fuse and Conventional Resistor Removal Replacement 1 Clip each fuse or resistor lead at top of the circuit board hollow stake 2 Securely crimp the leads of replacement component around notch at stake top 3 Solder the connections CAUTION Maintain original spacing between the replac...

Page 6: ...tion by part number in accordance with BOM 5 The receiver must be operated for about 5 minutes prior to the adjustment 3 Test method 1 Performance LGE TV test method followed 2 Demanded other specification Safety CE IEC EN60065 EMC CE IEC 4 Module optical specification AUO Module 1 Standard Test Condition The unit has been ON 2 Stable for approximately 30 minutes in a dark environment at 25 ºC 2 º...

Page 7: ...20p 9 1280x720 45 00 60 00 HDTV 720p 10 1920x1080 31 25 50 00 HDTV 1080i 11 1920x1080 33 75 60 00 HDTV 1080i 12 1920x1080 33 72 59 94 HDTV 1080i 13 1920x1080 56 250 50 HDTV 1080p 14 1920x1080 67 5 60 HDTV 1080p No Specification Proposed Remark Resolution H freq kHz V freq Hz Pixel Clock MHz 1 720 400 31 468 70 08 28 321 For only DOS mode 2 640 480 31 469 59 94 25 17 VESA Input 848 480 60 Hz 852 48...

Page 8: ...280 1024 63 595 60 0 108 875 SXGA HDCP FHD model 8 1920 1080 67 5 60 00 138 625 WUXGA HDCP FHD model 2 PC Mode No Resolution H freq kHz V freq Hz Pixel clock MHz Proposed Remark 1 720 480 31 469 31 5 59 94 60 27 00 27 03 SDTV 480P 2 720 576 31 25 50 54 SDTV 576P 3 1280 720 37 500 50 74 25 HDTV 720P 4 1280 720 44 96 45 59 94 60 74 17 74 25 HDTV 720P 5 1920 1080 33 72 33 75 59 94 60 74 17 74 25 HDTV...

Page 9: ...o Detect and check OK message If Error is displayed Check connection between computer jig and set 3 Click Read tab and then load download file XXXX bin by clicking Read 4 Click Connect tab If Can t is displayed check connection between computer jig and set 5 Click Auto tab and set as below 6 Click Run 7 After downloading check OK message USB DOWNLOAD epk file download 1 Put the USB Stick to the US...

Page 10: ...rator 480i Mode PATTERN 65 in Pattern Generator MSPG 925 Series RGB 1024x768 60 Hz Using the Inner Pattern After enter Service Mode by pushing ADJ key Enter Internal ADC mode by pushing G key at 5 ADC Calibration Caution Using power on button of the Adjustment R C power on TV ADC Calibration Protocol RS232 Adjust Sequence aa 00 00 Enter Adjust Mode xb 00 40 Component1 Input 480i ad 00 10 Adjust 48...

Page 11: ...R G B Gain are all C0 it is the FULL Dynamic Range of Module Manual W B process using adjusts Remote control After enter Service Mode by pushing ADJ key Enter White Balance by pushing G key at 6 White Balance After done all adjustments Press In start key and compare Tool option and Area option value with its BOM if it is correctly same then unplug the AC cable If it is not same then correct it sam...

Page 12: ...8 73 41 78 0A CF 74 A3 57 4C B0 23 20 09 48 4C A1 08 00 81 80 61 40 45 40 31 40 01 01 30 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C 40 45 00 7E 8A 42 00 00 1E 01 1D 00 72 51 D0 1E 20 50 6E 28 55 00 7E 8A 42 00 00 1E 00 00 00 FD 00 3A 60 3E 1E 53 10 00 0A 20 20 20 20 20 20 d 70 d 00 e 80 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF 90 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF A0 FF FF...

Page 13: ...on FOS Default write 7mode data write Vtotal V_Frequency Sync_Polarity Htotal Hstart Vstart 0 Phase Data write Model Name and Serial Number write in EEPROM 5 3 Method notice A Serial number D L is using of scan equipment B Setting of scan equipment operated by Manufacturing Technology Group C Serial number D L must be conformed when it is produced in production line because serial number D L is ma...

Page 15: ...cal and mechanical parts in this chassis have special safety related characteristics These parts are identified by in the Schematic Diagram and EXPLODED VIEW It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent X RADIATION Shock Fire or other Hazards Do not modify the original design without permission of manufacturer ...

Page 16: ...R163 0 R162 0 R1535 0 C107 8pF OPT C108 8pF OPT R1521 3 9K 1 19 32 24V POWER_DET SIDE_HP_MUTE R108 100 HP_DET R106 100 R114 100 R119 100 OPT SUBAMP_MUTE EXT_VOL EXT_VOL R1541 0 OPT SOC_RESET R1542 100 OPT 5V_HDMI_2 R1546 0 OPT 5V_HDMI_1 MODEL_OPT_0 R1645 0 OPT R1646 0 OPT R1647 0 OPT R1651 0 OPT R1653 0 MEMC_SCL MEMC_SDA R1654 0 OPT R1655 0 OPT R126 0 R168 0 MODEL_OPT_2 R1609 3 3K VESA R1610 3 3K ...

Page 17: ...CD_A_CK B2 HOTPLUG_A A2 RXBCKP C3 RXBCKN B1 RXB0P C1 RXB0N C2 RXB1P D2 RXB1N D3 RXB2P E3 RXB2N D1 DDCD_B_DA E1 DDCD_B_CK F3 HOTPLUG_B E2 RXCCKP AE8 RXCCKN AD8 RXC0P AD9 RXC0N AF8 RXC1P AF9 RXC1N AE9 RXC2P AE10 RXC2N AD10 DDCD_C_DA AE7 DDCD_C_CK AF7 HOTPLUG_C AD7 CEC J3 HSYNC0 SC1_ID N2 VSYNC0 SC1_FB N1 RIN0P SC1_R P2 GIN0P SC1_G R3 BIN0P SC1_B R1 SOGIN0 SC1_CVBS P3 RINM P1 BINM T3 GINM R2 HSYNC1 D...

Page 18: ...4 10uF C303 10uF IC301 H5PS5162FFR S6C J2 VREF J8 CK H2 VSSQ2 B7 UDQS N8 A4 P8 A8 L1 NC4 L2 BA0 R8 NC3 K7 RAS F8 VSSQ3 F3 LDM P3 A9 M3 A1 N3 A5 K8 CK R3 NC5 L3 BA1 J7 VSSDL L7 CAS F2 VSSQ4 B3 UDM M2 A10 AP K2 CKE R7 NC6 M7 A2 N7 A6 M8 A0 J1 VDDL K3 WE E8 LDQS P7 A11 K9 ODT A2 NC1 N2 A3 P2 A7 H8 VSSQ1 F7 LDQS A8 UDQS R2 A12 L8 CS E2 NC2 E7 VSSQ5 D8 VSSQ6 D2 VSSQ7 A7 VSSQ8 B8 VSSQ9 B2 VSSQ10 P9 VSS1...

Page 19: ... OUT_2 8 OUT_3 R406 4 7K R404 4 7K R427 75 1 R426 75 1 R428 75 1 R441 75 1 R442 75 1 R443 75 1 5V_GENERAL SPDIF_OUT R407 22 1 10W 1 IC401 NL17SZ00DFT2G 3 GND 2 B 4 Y 1 A 5 VCC R402 4 7K C408 0 1uF 16V R405 0 OPT P400 SPG07150941 1 1 RED 2 GREEN 3 BLUE 4 GND_1 5 DDC_GND 6 RED_GND 7 GREEN_GND 8 BLUE_GND 9 NC 10 SYNC_GND 11 GND_2 12 DDC_DATA 13 H_SYNC 14 V_SYNC 15 DDC_CLOCK 16 SHILED P401 SPG07150941...

Page 20: ...1 2 A0 4 A2 1 OE1 6 A4 5 A3 7 A5 8 A6 9 A7 10 GND 11 Y7 12 Y6 13 Y5 14 Y4 15 Y3 16 Y2 17 Y1 18 Y0 19 OE2 20 VCC 3 3V_CI FE_TS_CLK FE_TS_VAL_ERR FE_TS_SYN BUF_TS_CLK BUF_TS_VAL_ERR BUF_TS_SYN BUF_TS_DATA 0 FE_TS_DATA 0 C512 0 1uF R522 10K R523 10K R526 47 R528 47 R527 47 R525 47 C513 22pF 50V MDS61887701 M1 MDS61887701 M2 MDS61887701 M3 MDS61887701 M4 DVB CI SERIAL BUFFER TS 5 12 PCMCIA EAX62121501...

Page 21: ...IC602 CAT24C02WI GT3 3 A2 2 A1 4 VSS 1 A0 5 SDA 6 SCL 7 WP 8 VCC R607 0 5V_ST HDMI_CEC Q600 SSM6N15FU 3 DRAIN2 2 GATE1 1 SOURCE1 4 SOURCE2 5 GATE2 6 DRAIN1 D603 MMBD301LT1G 30V CEC_REMOTE R625 0 OPT C605 0 1uF 16V C600 0 1uF 16V C601 0 1uF 16V C603 0 1uF C607 0 1uF R600 2K R601 2K R603 22 R618 0 R621 0 R645 0 R642 0 R640 0 R623 0 R605 0 R616 10K R615 10K R613 1K R612 1K R604 22 R610 22 R611 22 R64...

Page 22: ...UTE 1 PVCCL_1 6 RIN 5 LIN 7 BYPASS 8 AGND_1 9 AGND_2 10 PVCCR_1 11 VCLAMP 12 PVCCR_2 13 PGNDR_1 14 PGNDR_2 15 ROUT 16 BSR 17 GAIN1 18 GAIN0 19 AVCC_1 20 AVCC_2 21 BSL 22 LOUT 23 PGNDL_1 24 PGNDL_2 R750 4 7K R747 10K OPT C766 1uF 16V C771 0 1uF 50V R749 4 7K R746 10K OPT C770 0 22uF 50V R748 10K SUBAMP_MUTE EXT_OUT_L EXT_R_AMP C767 0 1uF 50V C769 0 22uF 50V AMP_VCC R706 27K R711 27K C710 0 1uF 16V ...

Page 23: ...F 16V OPT C805 0 1uF 16V C842 0 1uF 16V C859 0 1uF 16V C850 0 1uF 16V R814 100 R848 100K R831 10K 1 16W R804 10K OPT R830 10K 1 16W OPT R802 10K R832 10K OPT R833 10K R823 10K OPT R822 10K R800 10K R821 10K C840 1uF 6 3V 22 R859 24 PDIM R824 22K 1 R825 22K 1 R839 22K R837 22K R856 4 7K R815 6 8K OPT P800 FW20020 24S 26 52 19 NC 14 12V 9 5 2V 4 GND 18 24V 13 12V 8 5 2V 3 GND 17 24V 12 GND 7 5 2V 2 ...

Page 24: ...T R917 22 CLOCK_SDA RTC_INT L400 CB3216PA501E R471 10K C442 22uF 16V R475 56K R479 4 7K EXT_12V EXT5V_CTRL C443 470pF 50V P_12V C440 22uF 16V R476 4 7K P_12V C438 1uF 16V R474 1K Q400 2SC3875S ALY E B C EXT_PWR_DET R480 10K EXT12V_CTRL C441 0 1uF 50V IC407 MP5000DQ 3 ENABLE FAULT 2 DV DT 4 I LIMIT 1 GND 5 NC 6 SOURCE_1 7 SOURCE_2 8 SOURCE_3 9 SOURCE_4 10 SOURCE_5 11 VCC 5V_ST 5V_ST C444 0 47uF 25V...

Page 25: ...T C1220 0 1uF 16V C1215 0 1uF 16V Q1201 ISA1530AC1 E B C Q1205 ISA1530AC1 E B C Q1202 ISA1530AC1 E B C C1209 68uF 10V R1223 0 C1222 0 01uF 25V C1208 0 1uF 16V OPT C1210 0 1uF 16V C1219 0 1uF 16V C1214 0 1uF 16V C1227 0 1uF 16V C1200 0 1uF 16V C1221 0 1uF 16V R1229 10 R1224 100 R1225 100K C1216 100pF 50V C1207 100pF 50V R1209 10K R1231 10K R1232 10K R1230 2 2K R1222 33 R1221 33 R1226 4 7K R1218 47 ...

Page 26: ... C ZD1304 5 6V AMOTECH 32 52 R1305 100 L1305 BLM18PG121SN1D R1318 100 C1314 0 1uF 16V P1303 12507WR 03L 19 26 1 KEY1 2 KEY2 3 GND 4 C1312 1000pF 50V KEY2 P1305 12507WS 08L 1 KEY1 2 KEY2 3 GND 4 5V_ST 5 GND 6 IR 7 LED_B 8 LED_R 9 5V_ST L1301 BLM18PG121SN1D R1302 10K ZD1301 5 6V AMOTECH 19 26 5V_ST Q1301 2SC3052 E B C R1319 4 7K C1308 0 1uF 16V 19 26 L1304 BLM18PG121SN1D 19 26 L1307 BLM18PG121SN1D L...

Page 27: ...2 OPT R1481 22 OPT R1482 22 OPT R1483 22 R1484 22 OPT R1486 22 OPT R1485 22 OPT R1488 22 R1487 22 R1489 22 UART_DBG_SW UART_SW1 NEC_DBG_RX R1429 22 NEC_DBG_TX R1427 22 DBG_SW UART_SW2 R1466 4 7K OPT L1400 BLM18PG121SN1D C1410 0 1uF 16V C1411 2 2uF 10V STBY_MUTE_NTP STBY_MUTE_TPA L1403 BLM18PG600SN1D L1404 BLM18PG600SN1D SUB_EEPROM R1476 22 OPT R1659 0 3 3V BSS83 Q1401 S B D G R1493 4 7K 5V_ST R149...

Page 28: ......

Page 29: ...nal device color error 5 6 B Power error No power 6 7 Off when on off while viewing power auto on off 7 8 C Audio error No audio Normal video 8 9 Wrecked audio discontinuation noise 9 10 D Function error No response in remote controller key error recording error memory error 10 11 External device recognition error 11 12 E Noise Circuit noise mechanical noise 12 13 F Exterior error Exterior defect ...

Page 30: ...eplace Inverter or module N Repair Power Board or parts End Always check record S W Version and White Balance value before replacing the Main Board Replace Main Board Re enter White Balance value Precaution Established date Electronics 6 3 Standard Repair Process Revised date 2010 07 27 1 13 LCD TV Error symptom A Video error No video Normal audio A3 A1 A2 A27 A7 A4 First of all Check whether all ...

Page 31: ...d 5V 12V 20V or 24V No Video No audio Check and replace MAIN B D Y Replace Power Board and repair parts N End Standard Repair Process A Video error No video No audio A5 Established date Electronics 6 3 Revised date 2010 07 27 2 13 LCD TV Error symptom 2 ...

Page 32: ...t Top Box Different maker TV etc SVC Bulletin Replace Main B D Check Tuner soldering Normal Picture Y N Y Close Normal Picture Y Close Menu Setup Booster By using Digital signal level meter By using Diagnostics menu on OSD Menu Setup Diagnostic Signal strength Normal over 50 Signal Quality Normal over 50 Normal Picture Y Contact with signal distributor or broadcaster Cable or Air N N Normal Pictur...

Page 33: ...al device and cable Y External device Cable normal RGB HDMI DVI error Check external device and cable Replace Main B D Replace Main B D N N A Video error Color error A8 N Y End Replace module Request repair for external device cable Replace T Con Board And Adjust VCOM N Y Color error LGD Module Only Other Module Color error Check Test pattern A12 A10 A11 A27 Standard Repair Process Established dat...

Page 34: ... Jig pattern Generator Set top Box etc N Y Replace Main B D Screen normal Check screen condition by input External Input Component RGB HDMI DVI Request repair for external device Component error RGB error HDMI DVI Connect other external device and cable Check normal operation of External Input Component RGB and HDMI DVI by connecting Jig pattern Generator Set top Box etc Replace Main B D Screen no...

Page 35: ...ormal Check ST BY 5V Replace Power B D N Y Normal voltage Replace Power B D Y A17 A18 A19 A20 Standard Repair Process Established date Electronics 6 3 Revised date 2010 07 27 6 13 LCD TV Error symptom 09 years new model apply mechanical power switch to reduce power consumption in stand by status If mechanical power switch off Doesn t turn on by remote control Doesn t appear LED light Please refer ...

Page 36: ...7 Status Power off List Explanation Normal POWEROFF_REMOTEKEY Power off by REMOTE CONTROL POWEROFF_OFFTIMER Power off by OFF TIMER POWEROFF_SLEEPTIMER Power off by SLEEP TIMER POWEROFF_INSTOP Power off by INSTOP KEY POWEROFF_AUTOOFF Power off by AUTO OFF POWEROFF_ONTIMER Power off by ON TIMER POWEROFF_RS232C Power off by RS232C POWEROFF_RESREC Power off by Reservated Record POWEROFF_RECEND Power o...

Page 37: ... of Power Board Normal voltage Y N Replace Power Board and repair parts Check Speaker disconnection N Y Replace Speaker Replace MAIN Board End C Audio error No audio Normal video A24 A25 Disconnection Established date Electronics 6 3 Revised date 2010 07 27 8 13 LCD TV Error symptom Standard Repair Process 8 ...

Page 38: ...tinuation Noise only for External Input Connect and check other external device N Y Normal audio Check and fix external device Replace Power B D N Y Normal voltage Check input signal RF External Input signal Signal normal When RF signal is not received Request repair to external cable ANT provider Y Check audio B Voltage 20V or 24V Replace Main B D In case of External Input signal error Check and ...

Page 39: ...r solder Normal operating Check B 5V On Main B D A27 Normal Voltage Close N N Check 5v on Power B D Replace Power B D or Replace Main B D Power B D don t have problem A20 Check IR Output signal Normal Signal N Y Repair Replace IR B D N A27 Replace Main B D Y Y N Check R C Operation Normal operating Y Check Repair Cable connection Connector solder Normal operating Close N Check Replace Assembly sta...

Page 40: ...mponent Recognition error Check and fix external device cable RGB HDMI DVI Optical Recognition error Replace Main B D Replace Main B D Fix in accordance with technical information D Function error External device recognition error Established date Electronics 6 3 Revised date 2010 07 27 11 13 LCD TV Error symptom Standard Repair Process 11 ...

Page 41: ...on and then proceed as shown in the solution manual For models without any fix information provide the description OR Mechanical noise is a natural phenomenon and apply the 1st level description When the customer does not agree apply the process by stage Describe the basis of the description in Part related to nose in the Owner s Manual E Noise Circuit noise mechanical noise With Inverter Module W...

Page 42: ...inet damage Replace cabinet Replace remote controller Remote controller damage Stand dent Replace stand F Exterior defect Exterior defect Adjust VCOM Established date Electronics 6 3 Revised date 2010 07 27 13 13 LCD TV Error symptom Standard Repair Process A27 13 ...

Page 43: ...fail 2 Video Problem No OSD 3 Digital TV 4 Analog TV 5 AV CVBS 6 Component 7 RGB D SUB 8 HDMI 9 Audio Problem All Input 10 Digital TV 11 Analog TV 12 AV Component RGB HDMI PC HDMI DTV 13 AV Audio out No Audio Headphone SPDIF 14 USB Remocon Problem USB no connect Remocon 15 Commercial Function Problem Clock Display RJP IR Out Buzzer External Speaker ...

Page 44: ... 3V Replace MAIN B D IC801 YES NO MAIN B D L813 1 26V Replace MAIN B D IC805 YES NO MAIN B D L805 3 3V Replace MAIN B D IC806 YES NO Check MAIN B D X100 Clock 12MHz Replace MAIN B D IC100 YES NO Replace MAIN B D IC102 NAND FLASH YES Replace MAIN B D IC103 Serial Flash NO Replace MAIN B D IC300 IC301 DDR2 Memory NO Replace MAIN B D IC100 NO Making 전자 6 2 Revision 2010 07 27 LCD TV Symptom Power Up ...

Page 45: ...Replace MAIN B D IC103 Serial Flash NO Replace MAIN B D IC300 IC301 DDR2 Memory NO Replace MAIN B D IC100 NO Making 전자 6 2 Revision 2010 07 27 LCD TV Symptom Power Up Boot Fail 22LD320H P801 Pin 5 6 Voltage Level 5V YES P801 Pin 1 2 15V MAIN B D L803 3 3V YES MAIN B D L813 1 26V YES MAIN B D L805 3 3V YES Check MAIN B D X100 Clock 12MHz YES Replace MAIN B D IC102 NAND FLASH YES ...

Page 46: ...er Board YES NO YES NO YES Replace MAIN B D Q802 MAIN B D L1300 12V Replace MAIN B D Q806 NO Replace Main Board YES P800 Pin 13 14 12V P800 Pin 17 18 24V Check LVDS Cable OK YES Replace LVDS Cable NO Making 전자 6 2 Revision 2010 07 27 LCD TV Symptom No OSD 22 42LD320H ...

Page 47: ...Replace Power Board YES NO YES NO YES Replace MAIN B D Q802 MAIN B D L1300 12V Replace MAIN B D Q806 NO Replace Main Board YES P801 Pin 1 2 15V Check LVDS Cable OK YES Replace LVDS Cable NO Making 전자 6 2 Revision 2010 07 27 LCD TV Symptom No OSD 22LD320H ...

Page 48: ...3 3V NO Replace MAIN B D IC809 YES NO Replace MAIN B D IC808 MAIN B D IC804 Pin 2 1 2V Replace MAIN B D IC804 YES NO YES MAIN B D R1210 Clock NO Replace MAIN B D TU1200 Making 전자 6 2 Revision 2010 07 27 LCD TV Symptom Digital TV Video Problem 22 42LD320H ...

Page 49: ...o Problem Check RF Cable MAIN B D L1201 5V YES MAIN B D L1202 3 3V NO Replace MAIN B D IC809 YES NO Replace MAIN B D IC808 MAIN B D IC804 Pin 2 1 2V Replace MAIN B D IC804 YES NO YES MAIN B D R1210 Clock NO Replace MAIN B D TU1200 2010 07 27 22 42LD320H ...

Page 50: ...MAIN B D JK1100 Check Replace MAIN B D JK1100 YES NO Check MAIN B D R1117 Video Signal NO YES Check MAIN B D C210 Video Signal Replace MAIN B D C210 NO Replace MAIN B D IC 100 YES Making 전자 6 2 Revision LCD TV Symptom AV No Video Problem 2010 07 27 22 42LD320H ...

Page 51: ...ce MAIN B D JK400 YES NO Check MAIN B D R419 Video Signal NO YES Check MAIN B D C209 C215 Y C216 Pb C214 Pr Video Signal Replace MAIN B D C209 or C214 or C215 or C216 NO Replace MAIN B D IC 100 YES Making 전자 6 2 Revision LCD TV Symptom Component No Video No Color Problem 2010 07 27 22 42LD320H ...

Page 52: ...MAIN B D P400 YES NO NO YES Check MAIN B D C208 Video R246 HSYNC R245 VSYNC Replace MAIN B D C208 or R246 or R247 NO Replace MAIN B D IC 100 YES MAIN B D P400 Pin 2 Video signal R437 has Vsync R440 has Hsync Making 전자 6 2 Revision LCD TV Symptom RGB No Video Problem 2010 07 27 22 42LD320H ...

Page 53: ...N B D P400 YES NO NO YES Check MAIN B D C212 RED C207 GREEN C213 BLUE Video Signal Replace MAIN B D C212 or C207 or C213 NO Replace MAIN B D IC 100 YES MAIN B D P400 Pin 3 BLUE Pin 2 GREEN Pin 1 RED Video signal Making 전자 6 2 Revision LCD TV Symptom RGB No Color Problem 2010 07 27 22 42LD320H ...

Page 54: ...place MAIN B D IC 100 Check the ADJUST MENU EDID OK YES Download EDID Refer to Adjustment Spec NO NO Replace MAIN B D IC107 HDCP KEY Making 전자 6 2 Revision LCD TV Symptom HDMI 1 2 All No Video Problem HDMI1 ALL MODELS HDMI2 Except for 19 22LH250 2010 07 27 22 42LD320H ...

Page 55: ... MAIN B D IC 100 MAIN B D JACK Check JK600 HDMI1 JK601 HDMI2 YES This case is that HDMI Video doesn t display at the some HDMI input not all Making 전자 6 2 Revision LCD TV Symptom HDMI1 or 2 No Video Problem HDMI1 ALL MODELS HDMI2 Except for 19 22LH250 2010 07 27 22 42LD320H ...

Page 56: ...eaker Cable NO CHECK MAIN B D JK700 or JK701 YES Replace MAIN B D JK700 or JK701 NO If headphone is connected Speaker sound doesn t work Replace MAIN B D IC803 NO YES MAIN B D L700 1 8V MAIN B D Check R720 R721 R722 Signal YES Replace MAIN B D IC100 NO Replace MAIN B D IC701 NO Making 전자 6 2 Revision LCD TV Symptom All Source no Audio Problem 2010 07 27 22 42LD320H ...

Page 57: ...Digital TV Video OK YES Replace MAIN B D IC 100 Making 전자 6 2 Revision LCD TV Symptom Digital TV No Audio Problem 2010 07 27 22 42LD320H ...

Page 58: ... Pin 17 Signal SIF Replace MAIN B D TU1200 NO Analog TV Video OK YES Check MAIN B D C231 Signal SIF NO Replace MAIN B D IC100 YES Making 전자 6 2 Revision LCD TV Symptom Analog TV No Audio Problem 2010 07 27 22 42LD320H ...

Page 59: ... C229 C230 MAIN B D C229 Right Sound C230 Left Sound signal YES NO Replace MAIN B D IC 100 AV1 Video OK YES Check MAIN B D JK1100 Replace MAIN B D JK1100 NO YES Making 전자 6 2 Revision LCD TV Symptom AV1 No Audio Problem 2010 07 27 22 42LD320H ...

Page 60: ...2014 MAIN B D C2013 Right Sound C2014 Left Sound signal YES NO Replace MAIN B D IC 100 Component Video OK YES Check MAIN B D JK400 Replace MAIN B D JK400 NO YES Making 전자 6 2 Revision LCD TV Symptom Component No Audio Problem 2010 07 27 22 42LD320H ...

Page 61: ...15 C2016 MAIN B D C2015 Right Sound C2016 Left Sound signal YES NO Replace MAIN B D IC 100 RGB Video OK YES Check MAIN B D JK401 Replace MAIN B D JK401 NO YES Making 전자 6 2 Revision LCD TV Symptom RGB HDMI PC No Audio Problem 2010 07 27 22 42LD320H ...

Page 62: ... YES Check the ADJUST MENU EDID OK YES Download EDID Refer to Adjustment Spec NO Check the HDMI Cable Replace MAIN B D IC100 YES Making 전자 6 2 Revision LCD TV Symptom HDMI DTV No Audio Problem 2010 07 27 22 42LD320H ...

Page 63: ...und R240 Left Sound signal NO YES Replace MAIN B D IC 100 Analog TV Audio OK YES Check MAIN B D JK1100 Replace MAIN B D JK1100 NO YES Check the Trouble Shooting Guide Analog TV No video NO Making 전자 6 2 Revision LCD TV Symptom AV1 No Audio Out Problem 2010 07 27 22 42LD320H ...

Page 64: ...eft Sound signal NO YES Replace MAIN B D IC 100 Speaker Audio OK YES Check MAIN B D JK700 or JK701 Replace MAIN B D JK700 or JK701 NO YES Check the Trouble Shooting Guide Related to Audio Problem NO Making 전자 6 2 Revision LCD TV Symptom Headphone No Audio Problem 2010 07 27 22 42LD320H ...

Page 65: ... Signal Replace MAIN B D IC 100 Speaker Audio OK YES Check MAIN B D JK403 Replace MAIN B D JK403 NO YES NO Check the Trouble Shooting Guide Related to Audio Problem NO Making 전자 6 2 Revision LCD TV Symptom SPDIF No Audio Problem 2010 07 27 22 42LD320H ...

Page 66: ...rted by Spec Refer to User Manual s USB cautions YES Check MAIN B D R801 5V Replace MAIN B D IC402 YES NO Replace MAIN B D IC808 YES YES Replace MAIN B D IC 100 Check MAIN B D JK405 OK YES NO Replace MAIN B D JK405 Making 전자 6 2 Revision LCD TV Symptom USB No Connect Problem 2010 07 27 22 42LD320H ...

Page 67: ...Check IR B D P1 Wafer Connector Check MAIN B D P1305 Wafer Connector YES NO Replace it YES Replace IR B D Making 전자 6 2 Revision LCD TV Symptom Remote Control Problem 2010 07 27 22 42LD320H ...

Page 68: ...k MAIN B D P1305 Wafer Connector YES NO Replace MAIN B D IC100 IR B D IC1 Pin 3 Voltage 4V NO NO Replace it YES Replace IR B D IC1 NO Replace MAIN B D IC100 Making 전자 6 2 Revision LCD TV Symptom Remote Control Problem 22LD320H 2010 07 27 ...

Page 69: ...me item on user Menu YES NO Replace the Clock display item from No to Yes NO Check the current time establishment on Time item of user menu Re solder or replace the defect part Replace the front clock assy Check I2C line output of IC1400 1404 Check the front clock assy Replace MAIN B D IC 100 NO NO YES YES YES Direct user setting 2010 07 27 22 42LD320H ...

Page 70: ...lace it NO Replace the Clock display item from No to Yes Select Clock Source Programme Re solder or replace the defect part Replace the front clock assy Check I2C line output of IC901 902 Check the front clock assy Replace MAIN B D IC 100 NO NO YES YES YES Setting that use TTX information DTV clock information 2010 07 27 22 42LD320H ...

Page 71: ... TV Symptom RJP Problem Check the RJP item on SVC Menu YES Check the supply 12V power of RJP JK409_Pin1 YES NO Replace the RJP item from No to Yes NO Check the supply power Replace JK409 Check the JK409 NO 2010 07 27 22 42LD320H ...

Page 72: ... Out Problem Check the RS 232C Pin4 HDMI Pin14 Check the IR waveform of R1300 YES NO Replace it Check the IR waveform of IC1100_3 6 11Pin YES NO Replace the Preamp of IR ass y NO Re soldering or replace the defect part 2010 07 27 22 42LD320H ...

Page 73: ... Buzzer Problem Check the IC 1405 BU1400 Check the Time item on user Menu YES NO Replace it Check the Time item on user Menu YES NO Check the current time establishment on Time item of user menu NO Set to Alarm Time 2010 07 27 22 42LD320H ...

Page 74: ...rate normally Check the input source YES NO Re solder or Replace the IC702 IC100 operate normally YES NO Change input source NO Re solder or replace the IC100 Replace it Replace the external speaker Check JK406 Check the external speaker NO NO YES YES 2010 07 27 22 42LD320H ...

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LG CHAMELEON V 32LD320H, Service Manual

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