LG 32LK430 Service Manual Download Page 61

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Trouble shooting guide

2. Digital TV Video

Check RF Cable & Signal

Check Tuner 3.3V Power

L3703

Replace L3703

Check Tuner 1.2V Power

IC3703 2 pin : 1.2V

Check IF_P/N Signal

TU3702 17/18 Pin

Replace IC3703

Check Tuner 5V Power

L3702

Check

IC411

Check Mstar LVDS Output

Replace Mstar(IC101) or Main Board.

Replace

IC411

Bad Tuner. Replace Tuner.

Replace L3702

※

When the PCB is EAX63529602

IC411 is not available.

In this case, check IC406 is 5V or not

LGE Internal Use Only

Summary of Contents for 32LK430

Page 1: ...READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS LA01U MODEL 32LK430 32LK430 UA 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 MFL67021015 1105 REV00 ...

Page 2: ...nal Use Only Copyright LG Electronics Inc All right reserved Only for training and service purposes 2 CONTENTS CONTENTS 2 SAFETY PRECAUTIONS 3 SPECIFICATION 6 ADJUSTMENT INSTRUCTION 10 EXPLODED VIEW 16 SVC SHEET ...

Page 3: ...perate without damage of electrical shock Leakage Current Cold Check 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 p...

Page 4: ...n 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 b...

Page 5: ...e 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 replaced...

Page 6: ...he adjustment 3 Test method 1 Performance LGE TV test method followed 2 Demanded other specification Safety UL CSA IEC specification EMC FCC ICES IEC specification 6 SPECIFICATION NOTE Specifications and others are subject to change without notice for improvement 4 General Specification TV No Item Specification Remark 1 Receivable System 1 ATSC NTSC M 2 Available Channel 1 VHF 02 13 2 UHF 14 69 3 ...

Page 7: ...t Y 0 03 0 33 0 03 GREEN X 0 29 Y 0 60 BLUE X 0 15 Y 0 06 WHITE X 0 28 Y 0 29 RED X Typ 0 636 Typ 42LK430 UA Y 0 03 0 335 0 03 GREEN X 0 291 Y 0 603 BLUE X 0 146 Y 0 061 WHITE X 0 279 Y 0 292 4 Contrast ratio Module 3200 4000 32 42LK430 AUO DCR 90 000 1 100 000 1 32LK430 AUO 30 000 1 40 000 1 32 42LK430 AUO 5 Color Temperature Cool 0 254 0 269 0 284 13000K The W B Tolerance is 0 015 0 258 0 273 0 ...

Page 8: ...6 HDTV 1080I 9 1920 1080 67 500 60 148 50 HDTV 1080P 10 1920 1080 67 432 59 94 148 352 HDTV 1080P 11 1920 1080 27 000 24 000 74 25 HDTV 1080P 12 1920 1080 26 97 23 976 74 176 HDTV 1080P 13 1920 1080 33 75 30 000 74 25 HDTV 1080P 14 1920 1080 33 71 29 97 740176 HDTV 1080P 7 RGB Input PC No Resolution H freq kHz V freq kHz Pixel clock Proposed PC DDC 1 640 350 31 468 70 09 25 17 EGA X 2 720 400 31 4...

Page 9: ...SA WXGA O 7 1280 1024 63 981 60 020 108 00 VESA SXGA O 8 1920 1080 67 500 60 000 148 50 HDTV 1080P O DTV 1 720 480 31 47 60 27 027 SDTV 480P O 2 720 480 31 47 59 94 27 00 SDTV 480P O 3 1280 720 45 00 60 00 74 25 HDTV 720P O 4 1280 720 44 96 59 94 74 176 HDTV 720P O 5 1920 1080 33 75 60 00 74 25 HDTV 1080I O 6 1920 1080 33 72 59 94 74 176 HDTV 1080I O 7 1920 1080 67 500 60 148 50 HDTV 1080P O 8 192...

Page 10: ...embly if needed Adjustment items in both PCBA and final assembly stages can be checked by using the INSTART Menu 1 ADJUST CHECK 3 2 Final Assembly adjustment 1 White Balance adjustment 2 RS 232C functionality check 3 Factory Option setting per destination 4 Shipment mode setting IN STOP 3 3 Etc 1 Ship out mode 2 Service Option Default 3 USB Download S W Update Option Service only 4 ISP Download Op...

Page 11: ... 26 20 0F 50 54 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 A0 5A 00 00 00 1E 01 1D 00 72 51 D0 1E 20 50 6E 28 55 00 A0 5A 00 00 00 1E 00 00 00 FD 00 39 60 3F 1F 52 10 00 0A 20 20 20 20 20 20 00 00 00 FC 70 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 03 0 1 2 3 4 5 6 7 8 9 A B C D E F _______________________________________________________ 0 ...

Page 12: ...e center of the Display 3 Connect Cable RS 232C 4 Select mode in adj Program and begin adj 5 When adj is complete OK Sing check adj status pre mode Cool Medium Warm 6 Remove probe and RS 232C cable to complete adj W B Adj must begin as start command wb 00 00 and finish as end command wb 00 ff and Adj offset if need 5 1 5 2 Manual adj method 1 Set TV in Adj mode using POWER ON 2 Zero Calibrate the ...

Page 13: ...Stop key of the Adj R C and check that the unit goes to Stand by mode Mode Color Coordination Temp UV x y COOL 0 269 0 273 13000K 0 0000 MEDIUM 0 285 0 293 9300K 0 0000 WARM 0 313 0 329 6500K 0 0000 Mode Color Coordination Temp UV x y COOL 0 269 0 002 0 273 0 002 13000K 0 0000 MEDIUM 0 285 0 002 0 293 0 002 9300K 0 0000 WARM 0 313 0 002 0 329 0 002 6500K 0 0000 Model Tool 1 Tool 2 Tool 3 Tool 4 To...

Page 14: ...ckpoint TEST voltage GND 1 5KV min at 100mA SIGNAL 3KV min at 100mA TEST time 1 second TEST POINT GND TEST POWER CORD GND SIGNAL CABLE METAL GND Internal Pressure TEST POWER CORD GND LIVE NEUTRAL LEAKAGE CURRENT At 0 5mArms 7 EYE Q Check Step 1 Turn on the TV Step 2 Press EYE button in adjust remote control Step 3 Stay 6 seconds with Eye Q sensor hidden located on the front of the set Step 4 Check...

Page 15: ...Copying files from memory 4 Updating is starting 5 Updating Completed The TV will restart automatically 6 If your TV is turned on check your updated version and Tool option Explain the Tool option next stage If downloading version is more high than your TV have TV can lost all channel data In this case you have to channel recover if all channel data is cleared you didn t have a DTV ATV test on pro...

Page 16: ... 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 IMP...

Page 17: ...KP LLV3P AD23 CCKM LLV3N AE23 C0P LLV0P BLUE 5 AE26 C0M LLV0N BLUE 4 AE25 C1P LLV1P BLUE 3 AF26 C1M LLV1N BLUE 2 AF25 C2P LLV2P BLUE 1 AE24 C2M LLV2N BLUE 0 AF24 C3P LLV4P AF23 C3M LLV4N AD22 C4P LLV5P AE22 C4M LLV5N AF22 DCKP TCON5 AD19 DCKM TCON4 AE19 D0P LLV6P AD21 D0M LLV6N AE21 D1P LLV7P AF21 D1M LLV7N AD20 D2P LLV8P AE20 D2M LLV8N AF20 D3P TCON3 AF19 D3M TCON2 AD18 D4P TCON1 AE18 D4M TCON0 A...

Page 18: ...A_RX1N G1 A_RX2P H1 A_RX2N H2 DDCDA_DA GPIO24 F5 DDCDA_CK GPIO23 F4 HOTPLUGA GPIO19 E6 B_RXCP D3 B_RXCN C1 B_RX0P D1 B_RX0N D2 B_RX1P E2 B_RX1N E3 B_RX2P F3 B_RX2N E1 DDCDB_DA GPIO26 D4 DDCDB_CK GPIO25 E4 HOTPLUGB GPIO20 D5 C_RXCP AA2 C_RXCN AA1 C_RX0P AB1 C_RX0N AA3 C_RX1P AB3 C_RX1N AB2 C_RX2P AC2 C_RX2N AC1 DDCDC_DA GPIO28 AB4 DDCDC_CK GPIO27 AA4 HOTPLUGC GPIO21 AC3 D_RXCP A2 D_RXCN A3 D_RX0P B...

Page 19: ...R2_DQ1 AD6 FRC_DDR3_DQL3 DDR2_DQ2 AD12 FRC_DDR3_DQL4 DDR2_DQ4 AE5 FRC_DDR3_DQL5 DDR2_NC AF12 FRC_DDR3_DQL6 DDR2_DQ3 AF5 FRC_DDR3_DQL7 DDR2_DQ5 AE12 FRC_DDR3_DQU0 DDR2_DQ8 AE10 FRC_DDR3_DQU1 DDR2_DQ14 AF7 FRC_DDR3_DQU2 DDR2_DQ13 AD11 FRC_DDR3_DQU3 DDR2_DQ12 AD7 FRC_DDR3_DQU4 DDR2_DQ15 AD10 FRC_DDR3_DQU5 DDR2_DQ9 AE7 FRC_DDR3_DQU6 DDR2_DQ10 AF10 FRC_DDR3_DQU7 DDR2_DQM1 AD8 FRC_DDR3_NC DDR2_DQM0 AE8 ...

Page 20: ... 3 3V_Normal 100 R437 POWER_20_ERROR_OUT R451 0 POWER_18_A_DIM 3 5V_ST POWER_ON OFF2_1 R421 10K R442 24K 1 C403 10uF 10V C402 100uF 16V P404 FM20020 24 NORMAL_32 19 14 9 4 18 13 8 3 17 12 7 2 16 11 6 1 20 15 10 5 21 22 23 24 25 C442 10uF 16V OPT R425 100 POWER_24_INV_CTL 0 R471 POWER_22_PWM_DIM C426 68uF 35V R402 100 C436 0 01uF 25V 0 01uF L406 3 6uH NR8040T3R6N R412 0 POWER_16_GND 12V 15V C424 0 ...

Page 21: ...REF 24 AVSS 25 ANI7 P27 26 ANI6 P26 27 ANI5 P25 28 ANI4 P24 29 ANI3 P23 30 ANI2 P22 31 ANI1 P21 32 P20 ANI0 33 P130 34 P01 TI010 TO00 35 P00 TI000 36 P140 PCL INTP6 37 P120 INTP0 EXLVI 38 P41 39 P40 40 RESET 41 P124 XT2 EXCLKS 42 P123 XT1 43 FLMD0 44 P122 X2 EXCLK OCD0B 45 P121 X1 OCD0A 46 REGC 47 VSS 48 VDD INV_CTL R1089 20K 1 16W 1 CEC_ON OFF R1013 22 MICOM_DEBUG R1020 0 R1071 10K B L_LED X1002 ...

Page 22: ...T R2414 1 5K L2401 BLM18PG121SN1D D2405 5 6B KEY1 3 3V_Normal JP2410 R2416 10K OPT R2405 10K 1 NEC_EEPROM_SCL D2402 5 6V AMOTECH R2411 100 EYEQ TOUCH_KEY IR C2401 0 1uF R2412 100 EYEQ TOUCH_KEY S T_SDA JP2409 C2406 1000pF 50V R2425 47K 3 5V_ST D2403 5 6B EYEQ TOUCH_KEY D2404 5 6B EYEQ TOUCH_KEY Q2405 2SC3052 E B C C2410 0 1uF 16V OPT C2405 0 1uF 16V C2407 100pF 50V L2403 BLM18PG121SN1D R2426 3 3K ...

Page 23: ... SYMBOL MARK OF THE SCHEMETIC SIGN6409 C1453 0 1uF C1452 10uF 10V USB1_OCD SIDE_USB_DP C1451 22uF 16V R1459 2K 1 8W 1 D1451 5 6V CDS3C05HDMI1 OPT 5V_USB USB1_CTL R1458 2K 1 8W 1 R1455 4 7K OPT SIDE_USB_DM L1451 MLB 201209 0120P N2 120 ohm D1452 5 6V CDS3C05HDMI1 OPT R1454 10K 3 3V_Normal R1451 47 L1451 1 CIS21J121 JK1450 3AU04S 305 ZC LG 1 2 3 4 5 IC1450 AP2191DSG EAN61849601 3 IN_2 2 IN_1 4 EN 1 ...

Page 24: ...D0_GND 3 D2 16 7 D0 6 D1 15 HDMI_CEC R881 22 D802 OPT GND DDC_SCL_2 BSS83 Q805 S B D G CEC_REMOTE_NEC DDC_SCL_4 GND HDMI_CEC CK _HDMI4 JP806 R854 68K R875 22 R835 3 3K HPD1 HPD4 D0 _HDMI1 R878 22 HDMI_CEC D0 _HDMI2 R804 1 8K R897 1K C810 0 1uF 16V C801 0 1uF 16V D0 _HDMI4 D803 AVRL161A1R1NT OPT 5V_HDMI_1 BSS83 Q806 S B D G R876 22 C805 0 1uF 16V DDC_SDA_1 R893 10K IC804 AT24C02BN SH T HDMI_SIDE_AT...

Page 25: ... DB 010 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 R1107 15K JK1103 JST1223 001 1 GND 2 VCC 3 VINPUT 4 FIX_POLE 3 3V_Normal R1135 75 R1155 1K HP_LOUT 002 V7 C1126 68pF 50V OPT C1119 10uF 16V SPDIF_OUT 002 T18 D1109 30V C1129 0 1uF 16V PC_R_IN 002 S12 R1129 3 3K R1137 75 3 3V_Normal D1101 5...

Page 26: ...MPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC R1124 100 JK1101 SPG09 DB 009 1 2 3 4 5 6 7 8 9 10 JP1121 IC1101 MAX3232CDR EAN41348201 3 C1 2 V 4 C2 1 C1 6 V 5 C2 7 DOUT2 8 RIN2 9 ROUT2 10 DIN2 11 DIN1 12 ROUT1 13 RIN1 14 DOUT1 15 GND 16 VCC S7_NEC_TXD D1108 30V CDS3C30GTH OPT C1102 0 1uF JP1122 C1106 0 1uF S7_NEC_RXD C1103 0 1uF C1101 0 33uF C1104 0 1uF 3 5V_ST D1107 30V CDS3C30GTH OPT R1123 100 C1...

Page 27: ...al RXA3 RXB3 3 3V_Normal RXBCK RXB1 C703 0 1uF 16V HD RXCCK C709 1000pF 50V OPT TP722 RXC1 RXC0 PWM_DIM C700 10uF 16V OPT RXD1 RXA0 RXC1 R710 10K OPT PWM_DIM RXBCK C710 0 1uF 16V WAFER_FHD SCAN_BLK1 OPC_OUT RXA2 RXB2 RXD2 P705 FF10001 30 HD 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 RXD1 P703 FI RE51S HF J R1500 WAFER_FHD 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15...

Page 28: ...DDR2_A6 B25 B_DDR3_A9 DDR2_A12 T26 B_DDR3_A10 DDR2_RASZ D24 B_DDR3_A11 DDR2_A11 A26 B_DDR3_A12 DDR2_A0 C25 B_DDR3_A13 DDR2_A7 T25 B_DDR3_BA0 DDR2_BA2 P24 B_DDR3_BA1 DDR2_CASZ C26 B_DDR3_BA2 DDR2_A5 R26 B_DDR3_MCLK DDR2_MCLK D26 B_DDR3_MCLKZ DDR2_MCLKZ D25 B_DDR3_CKE DDR2_DQ5 E24 B_DDR3_ODT DDR2_ODT N25 B_DDR3_RASZ DDR2_WEZ M26 B_DDR3_CASZ DDR2_BA1 N24 B_DDR3_WEZ DDR2_BA0 N26 B_DDR3_RESETB R25 B_DD...

Page 29: ...CAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC 3 3V_Normal IC1401 1 W25Q80BVSSIG S_FLASH_MAIN_WINBOND 3 WP IO2 2 DO IO1 4 GND 1 CS 5 DI IO0 6 CLK 7 HOLD IO3 8 VCC R1401 0 OPT FLASH_WP SPI_SDI R1405 33 SPI_SDO SPI_SCK SPI_CS 3 3V_Normal 3 3V_Normal R1404 4 7K R1403 10K Q1401 KRC103S OPT E B C C1401 0 1uF IC1401 MX25L8006EM2I 12G S_FLASH_MAIN_MACRONIX 3 WP 2 SO SIO1 4 GND 1 CS 5 SI SIO0 6 SCLK 7...

Page 30: ...IM C3727 0 1uF 16V C3701 0 1uF 16V R3770 10K FULL_NIM_SEMTEK TU_SDA C3714 22pF 50V FULL_NIM R3755 470 5V_TU DEMOD_SCL R3762 0 OPT C3708 0 1uF 16V R3701 100 FULL_NIM IF_AGC_SEL C3706 0 1uF 16V IC3703 AZ1117BH ADJTRE1 HALF_NIM_1 2V_BCD 2 OUTPUT 3 INPUT 1 ADJ GND R3706 0 FULL_NIM_BR TU3702 3 UDA55AL GP3_ATSC_1INPUT_H_SANYO 14 3 3V 13 1 2V 5 AS 12 GND 11 VIDEO 2 NC_2 10 NC_3 4 NC RF_AGC 1 NC_1 17 DIF_...

Page 31: ...OFER C5014 22pF 50V SMD OPT R5059 12 WOOFER 0 1uF C5044 50V WOOFER R5074 4 7K WOOFER D5002 100V 1N4148W OPT C5058 10uF 10V OPT C5032 0 01uF 50V OPT C5035 390pF 50V WOOFER AUD_MASTER_CLK C5034 10uF 35V WOOFER 0 1uF C5056 50V WOOFER WOOFER 1 8V_AMP2 WOOFER_L R5023 4 7K WOOFER C5068 1uF 25V WOOFER 1 8V_AMP2 R5068 1 WOOFER 0 1uF C5033 50V WOOFER C5069 10uF 10V WOOFER R5065 12 WOOFER 0 1uF C5042 50V WO...

Page 32: ...0pF 50V 0 1uF C515 50V 24V 0 1uF C537 50V C520 1uF 25V 3 5V_ST 0 1uF C539 50V 0 1uF C509 C528 10uF 35V R520 12 0 1uF C526 50V C511 10uF 10V OPT C545 22pF 50V OPT C434 0 1uF 16V 0 1uF C538 50V SPK_L R503 100 C531 390pF 50V 1 8V_AMP R514 100 C522 1uF 25V 0 1uF C527 50V POWER_DET C525 22000pF 50V Q501 2SC3052 E B C D501 100V 1N4148W OPT C503 10uF 10V OPT AUD_LRCH R508 3 3K C530 390pF 50V C534 0 47uF ...

Page 33: ...uF 16V EU_OPT C1625 0 1uF 50V EU_OPT COMP2_DET R1672 470K REAR_AV R1664 33K EU_OPT C1618 4700pF EU_OPT R1668 10K EU_OPT SC1 COMP1_DET C1644 10uF 16V EU_OPT R4221 0 EU_OPT C1662 330pF 50V REAR_AV AV_L_IN D1607 5 6V OPT C1612 330pF 50V DTV MNT_L_OUT D1601 5 6V OPT COMP2_Pb D1716 30V OPT D1602 30V OPT 12V 15V C1621 47uF 16V EU_OPT 0 R4210 EU_OPT C1620 100uF 16V EU_OPT DTV MNT_R_OUT SC_RE1 R1685 10K R...

Page 34: ... SIDE_AV_3HOLE 4A YL O SPRING 5A YL E LUG 3A YL CONTACT 4B WH O SPRING 3C RD CONTACT 4C RD O SPRING 5C RD E LUG D9906 30V SIDE_COMP R9914 10K SIDE_CVBS C9906 100pF 50V SIDE_CVBS SIDEAV_R_IN R9906 470K SIDE_CVBS D9908 5 6V OPT R9905 470K SIDE_CVBS R9912 1K SIDE_COMP L9902 BLM18PG121SN1D SIDE_CVBS C9905 100pF 50V SIDE_CVBS R9916 12K SIDE_CVBS SIDEAV_L_IN JK9901 KJA PH 1 0177 SIDE_AV_GENDER 3 M3_DETE...

Page 35: ...0 1uF OPT R1920 100 R1909 0 OPT 5V_CI_ON AR1905 33 CI_OE L1902 BLM18PG121SN1D R1901 47 CI_MDI 6 CI_MDI 2 PCM_WAIT CI_ADDR 4 C1903 0 1uF 16V CI_TS_DATA 5 PCM_IOWR PCM_A 12 R1924 10K CI_TS_DATA 1 CI_ADDR 12 R1923 10K OPT GND AR1906 33 PCM_A 11 CI_CD1 PCM_OE CI_IORD R1913 10K CI_IOWR AR1909 33 CI_MISTRT R1915 47 R1917 10K 3 3V_CI 5V_Normal 5V_Normal CI_MDI 6 CI_ADDR 9 AR1907 33 R1912 10K OPT PCM_A 1 ...

Page 36: ... MDS61887708 GAS3 4 12 5T_GAS MDS62110205 GAS1 2 7 5T_GAS MDS62110205 GAS3 2 7 5T_GAS MDS61887708 GAS2 4 12 5T_GAS MDS62110204 GAS1 1 5 5T_GAS MDS62110204 GAS2 1 5 5T_GAS MDS61887710 GAS2 3 9 5T_GAS MDS61887710 GAS5 3 9 5T_GAS MDS61887708 GAS5 4 12 5T_GAS MDS62110206 GAS5 6 5T_GAS MDS62110205 GAS5 2 7 5T_GAS MDS62110204 GAS5 1 5 5T_GAS MDS62110209 GAS1 5 8 5T_GAS MDS62110209 GAS2 5 8 5T_GAS MDS621...

Page 37: ...TURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC L DIM_SCLK C2103 18pF 50V OPT R2100 2 2K LED_DRIVER_D L C2102 18pF 50V OPT C2100 18pF 50V OPT V_SYNC L DIM_MOSI C2104 18pF 50V OPT C2101 18pF 50V OPT R2101 2 2K LED_DRIVER_D L LED_DRIVER_D L_SDA P2100 12507WR 08L L DIM_LED DRIVER 1 2 3 4 5 6 7 8 9 3 3V_Normal LED_DRIVER_D L_SCL L DIM_LED 20101023 21 GP2R ...

Page 38: ...LLV1P BLUE 3 AF26 C1M LLV1N BLUE 2 AF25 C2P LLV2P BLUE 1 AE24 C2M LLV2N BLUE 0 AF24 C3P LLV4P AF23 C3M LLV4N AD22 C4P LLV5P AE22 C4M LLV5N AF22 DCKP TCON5 AD19 DCKM TCON4 AE19 D0P LLV6P AD21 D0M LLV6N AE21 D1P LLV7P AF21 D1M LLV7N AD20 D2P LLV8P AE20 D2M LLV8N AF20 D3P TCON3 AF19 D3M TCON2 AD18 D4P TCON1 AE18 D4M TCON0 AF18 GPIO0 TCON15 HSYNC VDD_ODD AB22 GPIO1 TCON14 VSYNC VDD_EVEN AB23 GPIO2 TCO...

Page 39: ... GPIO23 F4 HOTPLUGA GPIO19 E6 B_RXCP D3 B_RXCN C1 B_RX0P D1 B_RX0N D2 B_RX1P E2 B_RX1N E3 B_RX2P F3 B_RX2N E1 DDCDB_DA GPIO26 D4 DDCDB_CK GPIO25 E4 HOTPLUGB GPIO20 D5 C_RXCP AA2 C_RXCN AA1 C_RX0P AB1 C_RX0N AA3 C_RX1P AB3 C_RX1N AB2 C_RX2P AC2 C_RX2N AC1 DDCDC_DA GPIO28 AB4 DDCDC_CK GPIO27 AA4 HOTPLUGC GPIO21 AC3 D_RXCP A2 D_RXCN A3 D_RX0P B3 D_RX0N A1 D_RX1P B1 D_RX1N B2 D_RX2P C2 D_RX2N C3 DDCDD...

Page 40: ...P RLV3P RED 3 W26 ACKM RLV3N RED 2 W25 A0P RLV0P RED 9 U26 A0M RLV0N RED 8 U25 A1P RLV1P RED 7 U24 A1M RLV1N RED 6 V26 A2P RLV2P RED 5 V25 A2M RLV2N RED 4 V24 A3P RLV4P RED 1 W24 A3M RLV4N RED 0 Y26 A4P RLV5P GREEN 9 Y25 A4M RLV5N GREEN 8 Y24 BCKP TCON13 GREEN 1 AC26 BCKM TCON12 GREEN 0 AC25 B0P RLV6P GREEN 7 AA26 B0M RLV6N GREEN 6 AA25 B1P RLV7P GREEN 5 AA24 B1M RLV7N GREEN 4 AB26 B2P RLV8P GREEN...

Page 41: ... 14 9 4 18 13 8 3 17 12 7 2 16 11 6 1 20 15 10 5 21 22 23 24 25 C442 10uF 16V OPT R425 100 POWER_24_INV_CTL 0 R471 POWER_22_PWM_DIM C426 68uF 35V R402 100 C436 0 01uF 25V 0 01uF L406 3 6uH NR8040T3R6N R412 0 POWER_16_GND 12V 15V C424 0 1uF 16V R429 47K C485 0 1uF 16V IC402 AZ2940D 2 5TRE1 2 GND 3 VOUT 1 VIN R441 75K 1 8W 1 Q405 2SC3052 E B C R430 10K OPT 1 26V_VDDC C418 0 1uF 50V R435 22K L421 3 6...

Page 42: ...DEBUG R1012 10K B L_LAMP OCD1B R1001 47K NEC_EEPROM_SCL R1048 22 3 5V_ST R1019 22 R4035 4 7K NEW_SUB R4034 4 7K NEW_SUB C1008 15pF R1006 10K OPT R1011 10K TACT_KEY 3 5V_ST 3 5V_ST R1076 22 MICOM_DEBUG AMP_MUTE POWER_ON OFF1 LED_R BUZZ LED_B LG_LOGO C1006 0 1uF S7_NEC_TXD R1052 10K NEC_SCL R1018 22 R1074 10K GP3 MICOM_RESET FLMD0 R1047 20K 1 16W 1 R1041 22 R1056 22 R1037 22 NEC_ISP_Rx S T_SCL 3 5V_...

Page 43: ...PT R2414 1 5K L2401 BLM18PG121SN1D KEY1 3 3V_Normal JP2410 R2416 10K OPT R2405 10K 1 NEC_EEPROM_SCL D2402 5 6V AMOTECH R2411 100 EYEQ TOUCH_KEY IR C2401 0 1uF R2412 100 EYEQ TOUCH_KEY S T_SDA JP2409 C2406 1000pF 50V R2425 47K OPT 3 5V_ST Q2405 2SC3052 OPT E B C C2410 0 1uF 16V OPT C2405 0 1uF 16V C2407 100pF 50V L2403 BLM18PG121SN1D R2404 10K 1 R2430 10K OPT R2413 1 5K JP2408 C2404 1000pF 50V JP24...

Page 44: ... MARK OF THE SCHEMETIC SIGN6409 C1453 0 1uF C1452 10uF 10V USB1_OCD SIDE_USB_DP C1451 22uF 16V R1459 2K 1 8W 1 5V_USB USB1_CTL R1458 2K 1 8W 1 R1455 4 7K OPT SIDE_USB_DM L1451 MLB 201209 0120P N2 120 ohm R1454 10K 3 3V_Normal R1451 47 L1451 1 CIS21J121 JK1450 3AU04S 305 ZC LG USB_JACK 1 2 3 4 5 IC1450 AP2191DSG EAN61849601 3 IN_2 2 IN_1 4 EN 1 GND 5 FLG 6 OUT_1 7 OUT_2 8 NC JK1450 1 3AU04S 345 ZC ...

Page 45: ...D0_GND 3 D2 16 7 D0 6 D1 15 HDMI_CEC R881 22 D802 OPT GND DDC_SCL_2 BSS83 Q805 S B D G CEC_REMOTE_NEC DDC_SCL_4 GND HDMI_CEC CK _HDMI4 JP806 R854 68K R875 22 R835 3 3K HPD1 HPD4 D0 _HDMI1 R878 22 HDMI_CEC D0 _HDMI2 R804 1 8K R897 1K C810 0 1uF 16V C801 0 1uF 16V D0 _HDMI4 D803 AVRL161A1R1NT OPT 5V_HDMI_1 BSS83 Q806 S B D G R876 22 C805 0 1uF 16V DDC_SDA_1 R893 10K IC804 AT24C02BN SH T HDMI_SIDE_AT...

Page 46: ...10 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 R1107 15K JK1103 JST1223 001 1 GND 2 VCC 3 VINPUT 4 FIX_POLE 3 3V_Normal R1135 75 R1155 1K HP_LOUT 002 V7 C1126 68pF 50V OPT C1119 10uF 16V SPDIF_OUT 002 T18 D1109 30V C1129 0 1uF 16V PC_R_IN 002 S12 R1129 3 3K R1137 75 3 3V_Normal D1101 5 6V O...

Page 47: ...MPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC R1124 100 JK1101 SPG09 DB 009 1 2 3 4 5 6 7 8 9 10 JP1121 IC1101 MAX3232CDR EAN41348201 3 C1 2 V 4 C2 1 C1 6 V 5 C2 7 DOUT2 8 RIN2 9 ROUT2 10 DIN2 11 DIN1 12 ROUT1 13 RIN1 14 DOUT1 15 GND 16 VCC S7_NEC_TXD D1108 30V CDS3C30GTH OPT C1102 0 1uF JP1122 C1106 0 1uF S7_NEC_RXD C1103 0 1uF C1101 0 33uF C1104 0 1uF 3 5V_ST D1107 30V CDS3C30GTH OPT R1123 100 C1...

Page 48: ...0 1uF 16V HD RXCCK C709 1000pF 50V OPT TP722 RXC1 RXC0 PWM_DIM C700 10uF 16V OPT RXD1 RXA0 RXC1 R710 10K OPT PWM_DIM RXBCK C710 0 1uF 16V WAFER_FHD SCAN_BLK1 OPC_OUT RXA2 RXB2 RXD2 P705 FF10001 30 HD 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 RXD1 P703 FI RE51S HF J R1500 WAFER_FHD 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 2...

Page 49: ...B_DDR3_DQU3 DDR2_DQ11 K25 B_DDR3_DQU4 DDR2_DQM1 H24 B_DDR3_DQU5 DDR2_DQ12 K26 B_DDR3_DQU6 DDR2_DQM0 G25 B_DDR3_DQU7 DDR2_DQ14 K24 H5TQ1G63DFR H9C IC1202 DDR_1333_HYNIX EAN61828901 A0 N3 A1 P7 A2 P3 A3 N2 A4 P8 A5 P2 A6 R8 A7 R2 A8 T8 A9 R3 A10 AP L7 A11 R7 A12 BC N7 A13 T3 NC_5 M7 BA0 M2 BA1 N8 BA2 M3 CK J7 CK K7 CKE K9 CS L2 ODT K1 RAS J3 CAS K3 WE L3 RESET T2 DQSL F3 DQSL G3 DQSU C7 DQSU B7 DML ...

Page 50: ...CAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC 3 3V_Normal IC1401 1 W25Q80BVSSIG S_FLASH_MAIN_WINBOND 3 WP IO2 2 DO IO1 4 GND 1 CS 5 DI IO0 6 CLK 7 HOLD IO3 8 VCC R1401 0 OPT FLASH_WP SPI_SDI R1405 33 SPI_SDO SPI_SCK SPI_CS 3 3V_Normal 3 3V_Normal R1404 4 7K R1403 10K Q1401 KRC103S OPT E B C C1401 0 1uF IC1401 MX25L8006EM2I 12G S_FLASH_MAIN_MACRONIX 3 WP 2 SO SIO1 4 GND 1 CS 5 SI SIO0 6 SCLK 7...

Page 51: ...1 2V_BCD 2 OUTPUT 3 INPUT 1 ADJ GND R3706 0 FULL_NIM_BR TU3702 3 UDA55AL GP3_ATSC_1INPUT_H_SANYO 14 3 3V 13 1 2V 5 AS 12 GND 11 VIDEO 2 NC_2 10 NC_3 4 NC RF_AGC 1 NC_1 17 DIF_1 9 SIF 8 NC IF_TP 3 B 5V 16 IF_AGC_CNTL 7 SDA 6 SCL 15 RESET 18 DIF_2 19 SHIELD TU3701 2 TDFR B036F FULL_NIM_BR 1 RF_S W_CNTL 2 BST_CNTL 3 B1 5V 4 NC_1 RF_AGC 5 NC_2 6 SCLT 7 SDAT 8 NC_3 9 SIF 10 NC_4 11 VIDEO 12 GND 13 B2 1...

Page 52: ... 1uF C515 50V 24V 0 1uF C537 50V C520 1uF 25V 3 5V_ST 0 1uF C539 50V 0 1uF C509 C528 10uF 35V R520 12 0 1uF C526 50V C511 10uF 10V OPT C545 22pF 50V OPT C434 0 1uF 16V 0 1uF C538 50V SPK_L R503 100 C531 390pF 50V 1 8V_AMP R514 100 C522 1uF 25V 0 1uF C527 50V POWER_DET C525 22000pF 50V Q501 2SC3052 E B C D501 100V 1N4148W OPT C503 10uF 10V OPT AUD_LRCH R508 3 3K C530 390pF 50V C534 0 47uF 50V 1 8V_...

Page 53: ...5 10uF 16V EU_OPT C1625 0 1uF 50V EU_OPT COMP2_DET R1672 470K REAR_AV R1664 33K EU_OPT C1618 4700pF EU_OPT R1668 10K EU_OPT SC1 COMP1_DET C1644 10uF 16V EU_OPT R4221 0 EU_OPT C1662 330pF 50V REAR_AV AV_L_IN D1607 5 6V NON_EU C1612 330pF 50V DTV MNT_L_OUT D1601 5 6V OPT COMP2_Pb D1716 30V OPT D1602 30V OPT 12V 15V C1621 47uF 16V EU_OPT 0 R4210 EU_OPT C1620 100uF 16V EU_OPT DTV MNT_R_OUT SC_RE1 R168...

Page 54: ... SIDE_AV_3HOLE 4A YL O SPRING 5A YL E LUG 3A YL CONTACT 4B WH O SPRING 3C RD CONTACT 4C RD O SPRING 5C RD E LUG D9906 30V SIDE_COMP R9914 10K SIDE_CVBS C9906 100pF 50V SIDE_CVBS SIDEAV_R_IN R9906 470K SIDE_CVBS D9908 5 6V OPT R9905 470K SIDE_CVBS R9912 1K SIDE_COMP L9902 BLM18PG121SN1D SIDE_CVBS C9905 100pF 50V SIDE_CVBS R9916 12K SIDE_CVBS SIDEAV_L_IN JK9901 KJA PH 1 0177 SIDE_AV_GENDER 3 M3_DETE...

Page 55: ...1 0 1uF OPT R1920 100 R1909 0 OPT 5V_CI_ON AR1905 33 CI_OE L1902 BLM18PG121SN1D R1901 47 CI_MDI 6 CI_MDI 2 PCM_WAIT CI_ADDR 4 C1903 0 1uF 16V CI_TS_DATA 5 PCM_IOWR PCM_A 12 R1924 10K CI_TS_DATA 1 CI_ADDR 12 R1923 10K OPT GND AR1906 33 PCM_A 11 CI_CD1 PCM_OE CI_IORD R1913 10K CI_IOWR AR1909 33 CI_MISTRT R1915 47 R1917 10K 3 3V_CI 5V_Normal 5V_Normal CI_MDI 6 CI_ADDR 9 AR1907 33 R1912 10K OPT PCM_A ...

Page 56: ... MDS61887708 GAS3 4 12 5T_GAS MDS62110205 GAS1 2 7 5T_GAS MDS62110205 GAS3 2 7 5T_GAS MDS61887708 GAS2 4 12 5T_GAS MDS62110204 GAS1 1 5 5T_GAS MDS62110204 GAS2 1 5 5T_GAS MDS61887710 GAS2 3 9 5T_GAS MDS61887710 GAS5 3 9 5T_GAS MDS61887708 GAS5 4 12 5T_GAS MDS62110206 GAS5 6 5T_GAS MDS62110205 GAS5 2 7 5T_GAS MDS62110204 GAS5 1 5 5T_GAS MDS62110209 GAS1 5 8 5T_GAS MDS62110209 GAS2 5 8 5T_GAS MDS621...

Page 57: ...NTS IN THE SYMBOL MARK OF THE SCHEMETIC L DIM_SCLK C2103 18pF 50V OPT R2100 2 2K LED_DRIVER_D L C2102 18pF 50V OPT C2100 18pF 50V OPT V_SYNC L DIM_MOSI C2104 18pF 50V OPT C2101 18pF 50V OPT R2101 2 2K LED_DRIVER_D L LED_DRIVER_D L_SDA P2100 12507WR 08L L DIM_LED DRIVER 1 2 3 4 5 6 7 8 9 3 3V_Normal LED_DRIVER_D L_SCL 3 3V_Normal R2103 10K FRC_L DIM_REVERSE_SEL R2102 10K OPT R4029 22 LED_DRIVER_D L...

Page 58: ...7 DD 8 GND 9 GPIO_0 10 GPIO_1 11 GPIO_2 12 3D_SYNC 13 R3406 22 3D_SG M_REMOTE_RX R3405 22 3D_SG R3402 100 3D_SG R3408 100 3D_SG L3401 120 ohm 3D_SG R3411 2 7K 3D_SG 3 3V_Normal R3410 2 7K 3D_SG R3412 2 7K 3D_SG DD_MREMOTE M_RFModule_RESET R3403 22 3D_SG 3 3V_Normal M_REMOTE_TX R3401 100 3D_SG 3D_GPIO_2 3D_GPIO_1 R3404 22 3D_SG R3409 100 3D_SG DC_MREMOTE R3407 100 3D_SG 1 1 1 0 0 1 RESERVED GPOIO_0...

Page 59: ......

Page 60: ... Check IC402 3 5 6 7 10 Out Voltage IC402 2 5V IC403 1 26V IC405 3 3V IC406 6V IC407 1 5V IC410 5V Replace IC402 3 5 6 7 10 Re download Micom software Check Micom Voltage IC1002 pin 48 3 5V Replace L404 Check LVDS Power Voltage Q409 12V Replace Q409 Check Mstar LVDS Output Replace Mstar IC101 or Main Board Change Module ok ok ok ok ok ok ok ok ok ok No No No No No No No No No No Replace X201 ok No...

Page 61: ...C3703 Check Tuner 5V Power L3702 Check IC411 Check Mstar LVDS Output Replace Mstar IC101 or Main Board ok ok ok ok ok No No No No No Replace IC411 No Bad Tuner Replace Tuner Replace L3702 ok When the PCB is EAX63529602 IC411 is not available In this case check IC406 is 5V or not Copyright ⓒ 2011 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 62: ...03 Check Tuner 5V Power L3702 Check Mstar LVDS Output Replace Mstar IC101 or Main Board ok ok ok ok ok No No No No Bad Tuner Replace Tuner Check IC411 No Replace IC411 No Replace L3702 ok When the PCB is EAX63529602 IC411 is not available In this case check IC406 is 5V or not Copyright ⓒ 2011 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 63: ...en conductor Check JK1601 or 1603 Y PB PR signal Line C211 213 215 217 218 220 222 224 ok ok ok No Replace Jack ok Check CVBS_DET Signal Replace R9915 or R1666 No Check Mstar LVDS Output Replace Mstar IC100 or Main Board No Check COMP_DET Signal Replace R1614 R4223 or R1615 No Check Mstar LVDS Output Replace Mstar IC100 or Main Board ok No Check JK1604 JK9901 CVBS Signal Line C227 C405 Copyright ⓒ...

Page 64: ...43 SDA SCL Check JK1104 H V_Sync R G B Signal Line R4024 4025 C204 206 208 210 ok ok ok No No Replace the defective IC or re download EDID data ok Replace Jack Check DSUB_DET Replace R1146 or R1147 No Check Mstar LVDS Output Replace Mstar IC100 or Main Board ok No Copyright ⓒ 2011 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 65: ...ive IC or re download EDID data Check HDCP Key NVRAM IC103 Power I2C Signal Replace the defective IC ok No Replace Jack Check HDMI Signal Check other set If no problem check signal line ok No Check Mstar LVDS Output Replace Mstar IC101 or Main Board ok No Replace Main Board No Check HDMI_DET HPD No ok Replace R830 R828 R862 Copyright ⓒ 2011 LG Electronics Inc All right reserved Only for training a...

Page 66: ...connector damage Replace speaker ok No Off Toggle the Menu Check AMP IC IC501 Power 24V 3 3V 1 8V No Check Regulator IC404 Check Mstar I2S Output R503 R504 R505 No Check signal line Or replace Mstar IC101 Check Mstar AUDIO_MASTER_CLK TP502 No Replace Mstar IC101 or Main Board ok Check AMP I2C Line R506 R507 No Check signal line Or replace Mstar IC101 Copyright ⓒ 2011 LG Electronics Inc All right r...

Page 67: ...C3703 2 pin 1 2V Check IF_P N Signal TU3702 17 18 Pin Replace IC3703 Check Tuner 5V Power L3702 ok ok ok ok No No No Bad Tuner Replace Tuner Check IC411 No Replace IC411 No Replace L3702 ok When the PCB is EAX63529602 IC411 is not available In this case check IC406 is 5V or not Copyright ⓒ 2011 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 68: ...r IC3703 2 pin 1 2V Check CVBS Signal TU3702 9 Pin Replace IC3703 Check Tuner 5V Power L3702 ok ok ok ok No No No Bad Tuner Replace Tuner Check IC411 No Replace IC411 No Replace L3702 ok When the PCB is EAX63529602 IC411 is not available In this case check IC406 is 5V or not Copyright ⓒ 2011 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 69: ...ignal Line ok ok No Replace Jack Follow procedure 8 All source audio trouble shooting guide Follow procedure 8 All source audio trouble shooting guide 13 RGB Audio Check Cable conductors for damage or open conductor Check JK1104 Signal Line ok No ok Replace Jack Follow procedure 8 All source audio trouble shooting guide Copyright ⓒ 2011 LG Electronics Inc All right reserved Only for training and s...

Page 70: ... pin Is it high ok No The external USB device may cause over current problem Change USB device memory stick or etc Replace IC1450 ok No Replace Mstar IC100 or Main Board Check IC1450 output 6 7 pin Is the voltage 5V ok Check IC1450 4 pin Is it high No Check L1451 C1451 Is the voltage 5V ok Replace C1451 L1451 No Check JK1450 pin1 Is the voltage 5V ok Replace JK1450 No Replace Mstar IC100 or Main B...

Page 71: ... LOGO SOFT TOUCH _SCL SDA SYSTEM EEPROM M24M01 HRMN6TP 1Mbit HDCP EEPROM CAT24C08WI I2C MICOM EEPROM M24C16 WMN6T RGB EEPROM AT24C16BN SH T I2C I2C HDMI EEPROM AT24C02BN SH T I2C DDR3 256M 1Gb 667Mhz 1333 Hynix H5TQ1G63DFR DDR3 256M 1Gb 667Mhz 1333 Hynix H5TQ1G63DFR HDMI EEPROM AT24C02BN SH T HDMI EEPROM AT24C02BN SH T FFC 51P For FHD 60Hz 120Hz FFC 41P For FHD 120Hz LK520 LK450 LK430 use this por...

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