LG 43UF67 Series Service Manual Download Page 67

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MENU => Press red key Remote control=>signal test

=> Select channel

When the signal is strong, use the

attenuator (-10dB, -15dB, -20dB etc.)

Standard Repair Process Detail Technical Manual

TUNER input signal strength checking method

A. Video error_Video error, video lag/stop

Established
date

Revised
date

Error
symptom

Content

Only for training and service purposes

LGE Internal Use Only

Summary of Contents for 43UF67 Series

Page 1: ...H MODEL 43UF67 43UF67 Z CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL LED TV SERVICE MANUAL North Latin America http aic lgservice com Europe Africa http eic lgservice com Asia Oceania http biz lgservice com Internal Use Only ...

Page 2: ...ights reserved Only for training and service purposes CONTENTS CONTENTS 2 SAFETY PRECAUTIONS 3 SERVICING PRECAUTIONS 4 SPECIFICATION 6 ADJUSTMENT INSTRUCTION 10 BLOCK DIAGRAM 18 EXPLODED VIEW 19 SCHEMATIC CIRCUIT DIAGRAM APPENDIX TROUBLE SHOOTING GUIDE APPENDIX ...

Page 3: ...inals etc to be sure the set is safe to operate 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 m...

Page 4: ...ctrostatic charge on your body by touching a known earth ground Alter natively obtain and wear a commercially available discharg ing 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 e...

Page 5: ...he 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 replace...

Page 6: ...UK Italy Germany France Spain Sweden Finland Netherlands Belgium Luxemburg Greece Denmark Czech Austria Hun gary Swiss Croatia TurkeyNorway Slovenia Poland Ukraine Portugal Ireland Morocco Latvia Estonia Lithania Rumania Bulgaria Russia SlovakiaBosnia Serbia Albania Kazakhstan Belarus DTV MPEG2 4 DVB T2 8 countries UK Denmark Sweden Finland Norway Ireland Ukraine Kaza khstan DTV MPEG2 4 DVB C 37 c...

Page 7: ...e 4 0Msymbols s to 7 2Msymbols s Modulation 16QAM 64 QAM 128 QAM and 256 QAM DVB S symbolrate DVB S2 8PSK QPSK 2 45 Msymbol s DVB S QPSK 2 45Msymbol s viterbi DVB S mode 1 2 2 3 3 4 5 6 7 8 DVB S2 mode 1 2 2 3 3 4 3 5 4 5 5 6 8 9 9 10 4 Scart Jack 1EA PAL SECAM Scart 1 Jack is Full scart and support RF OUT analog 5 Component AV Common port 1EA Video Input RCA PAL SECAM NTSC 4 System PAL SECAM NTSC...

Page 8: ...50 60 00 27 027 SDTV 480P 6 720 480 31 47 59 94 27 00 SDTV 480P 7 1280 720 37 50 50 00 74 25 HDTV 720P 8 1280 720 45 00 60 00 74 25 HDTV 720P 9 1280 720 44 96 59 94 74 176 HDTV 720P 10 1920 1080 28 125 50 00 74 25 HDTV 1080I 11 1920 1080 33 75 60 00 74 25 HDTV 1080I 12 1920 1080 33 72 59 94 74 176 HDTV 1080I 13 1920 1080 56 25 50 00 148 50 HDTV 1080P 14 1920 1080 67 50 60 00 148 50 HDTV 1080P 15 1...

Page 9: ...6P DVB 9 1280 720 44 96 59 94 74 176 HDTV 720P 10 1280 720 45 60 00 74 25 HDTV 720P 11 1280 720 37 5 50 00 74 25 HDTV 720P DVB 12 1920 1080 28 12 50 00 74 25 HDTV 1080I DVB 13 1920 1080 33 72 59 94 74 176 HDTV 1080I 14 1920 1080 33 75 60 00 74 25 HDTV 1080I 15 1920 1080 26 97 23 97 63 296 HDTV 1080P 16 1920 1080 27 00 24 00 63 36 HDTV 1080P 17 1920 1080 33 71 29 97 79 120 HDTV 1080P 18 1920 1080 3...

Page 10: ...nnection between computer jig and set 5 Click Auto tab and set as below 6 Click Run 7 After downloading check OK message USB DOWNLOAD 1 Put the USB Stick to the USB socket 2 Automatically detecting update file in USB Stick If your downloaded program version in USB Stick is Low it didn t work But your downloaded version is High USB data is automatically detecting 3 Show the message Copying files fr...

Page 11: ...00 00 00 00 00 00 00 0F 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 e 0 1 2 3 4 5 6 7 8 9 A B C D E F 00 00 FF FF FF FF FF FF 00 1E 6D a b 01 c 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26 02 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 81 80 03 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C 04 45 00 40 84 63 00 00 1E 66 21 50 B0 51 00 1B 30 05 40 70 36 00 40 84 63 00 00 1E 00 00 00 FD 00 3A 06 3E 1E ...

Page 12: ...20 21 09 22 15 01 60 61 5D 5E 5F 65 66 62 63 64 23 09 57 0A 07 f 0B 67 D8 5D C4 01 78 80 03 E3 05 C0 00 E4 0F 00 C0 0C 18 66 21 50 B0 51 00 1B 30 40 70 36 00 40 84 63 0D 00 00 1E 01 1D 00 72 51 D0 1E 20 6E 28 55 00 40 0E 84 63 00 00 1E 00 00 00 00 00 00 00 00 00 00 00 0F 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 e 0 1 2 3 4 5 6 7 8 9 A B C D E F 00 00 FF FF FF FF FF FF 00 1E 6D a b 01 c 01 03 8...

Page 13: ...99 Warm 6 500 K X 0 313 0 002 Y 0 329 0 002 X 0 320 Y 0 339 NetCast5 Aging time Min Cool Medium Warm x y x y x y 271 270 286 289 313 329 1 0 2 282 289 297 308 324 348 2 3 5 281 287 296 306 323 346 3 6 9 279 284 294 303 321 343 4 10 19 277 280 292 299 319 339 5 20 35 275 277 290 296 317 336 6 36 49 274 274 289 293 316 333 7 50 79 273 272 288 291 315 331 8 80 119 272 271 287 290 314 330 9 Over 120 2...

Page 14: ...ase G gain more than 172 Adjust R Gain and B Gain less than 192 2 If the G gain value be adjusted down to 172 One of the R B Gain is 254 3 If G Gain is 172 More than one of R B Gain is to be between 192 254 CASE Medium Warm First adjust the coordinate far away from the target value x y 1 x y target i Decrease the R G 2 x y target i First decrease the B gain ii Decrease the one of the others 3 x ta...

Page 15: ...ation POWER CORD AV CORD is tightly inserted 2 Connect the AV JACK Tester 3 Controller GWS103 4 on 4 HI POT test Auto If Test is failed Buzzer operates If Test is passed GOOD Lamp on and move to next process automatically 6 3 Checkpoint 1 Test voltage Touchable Metal 3 KV min at 100 mA SIGNAL 3 KV min at 100 mA 2 TEST time 1 second case mass production 3 TEST POINT Touchable Metal LIVE NEUTRAL Tou...

Page 16: ...the menu 6 Model Number D L like below photo 3 Input the Factory model name or Serial number like photo 4 Check the model name Instart menu Factory name displayed ex 47LB560V ZA 5 Check the Diagnostics DTV country only Buyer model displayed ex 47LB560V ZA 8 MAC Address CI key download 8 1 MAC Address 8 1 1 Equipment Condition Play file Serial exe MAC Address edit Input Start End MAC address 8 1 2 ...

Page 17: ... Mode of TV Setting automatic IP Setting state confirmation If automatic setting is finished you confirm IP and MAC Address 8 3 LAN PORT INSPECTION PING TEST Connect SET LAN port PC LAN Port 8 3 1 Equipment setting 1 Play the LAN Port Test PROGRAM 2 Input IP set up for an inspection to Test Program IP Number 12 12 2 2 8 3 2 LAN PORT inspection PING TEST 1 Play the LAN Port Test Program 2 Connect e...

Page 18: ...I2 0 Analog Demod System eeprom 256Kb HDMI Rx Air Cable TUNER T2 C A TUNER S2 DVB S DEMOD S2 LNB USB1 2 0 P_TS X tal 24MHz I2S Out I2C LVDS 60Hz USB P_TS I2C H P AV COMP SCART OCP 1 5A R E A R H S I D E V R E A R H CVBS YPbPr CVBS RGB SPDIF OUT SUB ASSY IR KEY CVBS Vx1 1Gb DDR3 Nand Flash 1Gb Audio Out URSA11 IR Key SPI Flash 1MB SPI Boot HDMI1 4 HDMI MUX HDMI Tx 1Gb 120Hz only embedded 1Gb DDR3 1...

Page 19: ...y electrical 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 Shock Fire or other Hazards Do not modify the original design without permission of manufacturer IMP...

Page 20: ...PH6050T 3R6N R C443 22uF 10V 5V_USB C403 10uF 16V R408 120K 1 R415 10K 3 3V_NORMAL USB1_CTL 12V R405 4 7K 5V_NORMAL IC405 BD9D321EFJ 3 VREG 2 FB 4 SS 1 EN 5 GND 6 SW 7 BOOT 8 VIN 9 EP C406 0 1uF 16V 5V_NORMAL C404 0 1uF C412 22uF 10V C409 1uF 10V R418 14K 1 C405 100pF 50V IC406 BD2242G 3 EN 2 GND 4 OC 1 VIN 6 VOUT 5 ILIM L404 BLM18PG121SN1D USB1_OCD C410 2200pF 50V 3 3V_NORMAL R409 6 8K 1 R426 10K...

Page 21: ...RTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC 2014 04 24 USB_S1 M1A_URSA9_UD C701 5pF 50V OPT R700 2 2 SIDE_USB1_DP 5V_USB SIDE_USB1_DM ZD700 5V OPT SD05 C700 10uF 10V C703 10uF 10V OPT D700 RCLAMP0502BA OPT C702 5pF 50V OPT R701 2 2 JK700 3AU04S 305 ZC LG 1 2 3 4 5 USB 3216 CAP SIDE 07 Copyright 2015 LG Electronics Inc All rights reserved Only for training and servic...

Page 22: ...ED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC SPDIF 2014 04 24 M1A_URSA9_UD C1001 1uF 10V OPT JK1001 JST1223 001 SPDIF_OPTIC 1 GND 2 VCC 3 VINPUT 4 FIX_POLE SPDIF_OUT 3 3V_NORMAL C1002 18pF 50V SPDIF_OPTIC SPDIF OPTIC JACK 5 15 Mstar Circuit Application SPDIF ESD Ready 10 Copyright 2015 LG Electronics Inc All rights reserved Only for training and service purposes...

Page 23: ...VREFDQ A MDQL2 C1204 0 1uF DDR_EXT A MCKE A MDQL0 C1212 0 1uF DDR_EXT C1209 0 1uF DDR_EXT A MDQU7 A MA2 C1205 0 1uF DDR_EXT A MODT C1215 0 01uF 50V DDR_EXT R1208 56 1 DDR_EXT A MA12 C1224 0 1uF OPT A MA8 H5TQ2G63DFR PBC IC1201 2 DDR_1600_2G_HYNIX_OLD EAN61829203 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 CK...

Page 24: ... DI IO0 6 CLK 7 HOLD IO3 8 VCC FLASH_WP SPI_SDI R1300 10K OPT R1302 33 IC1300 MX25L8006EM2I 12G SPI_FLASH_MACRONIX 3 WP 2 SO SIO1 4 GND 1 CS 5 SI SIO0 6 SCLK 7 HOLD 8 VCC SPI_SDO SPI_CS R1301 4 7K OPT C1300 0 1uF 3 5V_ST SPI_SCK 3 5V_ST IC1300 2 W25Q80DVSSIG SPI_FLAHS_WINBOND_NEW 3 WP IO2 2 DO IO1 4 GND 1 CS 5 DI IO0 6 CLK 7 HOLD IO3 8 VCC IC1300 3 MX25L8035EM2I 10G SPI_FHASH_MACRONIX_NEW 3 WP SIO...

Page 25: ...905 0 1uF 16V GND CI_MISTRT 5V_NORMAL CI_MDI 7 CI_ADDR 12 R1920 10K FE_TS_SYNC GND R1910 10K PCM_A 12 3 3V_NORMAL R1904 47 C1903 10uF 10V R1915 47 PCM_IOWR PCM_A 7 PCM_CD PCM_WE R1912 100 PCM_OE PCM_D 0 7 R1921 33 GND FE_TS_DATA 0 7 PCM_A 5 CI_MCLKI R1922 33 C1904 0 1uF R1908 10K R1923 100 CI_IOWR AR1901 33 CI_MDI 6 PCM_RST R1901 10K CI_DATA 0 7 R1919 10K R1916 100K PCM_REG R1902 100 R1913 10K L19...

Page 26: ...FIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC LAN 2014 04 24 21 M1A_URSA9_UD EPHY_TN C2104 0 01uF 50V ETHERNET JK2100 RJ45VT 01SN002 ETHERNET 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 C2105 0 01uF 50V ETHERNET EPHY_TP EPHY_RP EPHY_RN ETHERNET H W option ETHERNET Copyright 2015 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal ...

Page 27: ...03 0 01uF 50V LNB C2712 0 1uF 50V LNB R2702 2 2K 1W LNB A_GND 12V_LNB 12V_LNB D2704 40V LNB_DIODE_KEC MULTI SMAB34 D2705 1 40V LNB_DIODE_SUZHOU MULTI A_GND C2708 10uF 25V LNB A_GND C2710 0 1uF LNB C2707 0 1uF LNB R2701 0 C2709 0 1uF 50V LNB R2706 0 L2702 15uH LPH6050T 150M R LNB D2702 1 40V SS2040LL LG LNB_DIODE_SUZHOU MILTI D2703 1 40V SS2040LL LG LNB_DIODE_SUZHOU MILTI IC2701 A8303SESTR T 4M LNB...

Page 28: ...5 COMP_ZENER_KEC MULTI MMBT3904 NXP Q2802 1 SCART_MUTE_NPN_NXP MULTI MMBT3904 NXP Q2803 1 SCART_MUTE_NPN_NXP MULTI 2N3904S Q2802 SCART_MUTE_NPN_KEC MULTI 2N3904S Q2803 SCART_MUTE_NPN_KEC MULTI VA2809 1 ESD_SCART AV2_INNOCHIPS MULTI R2861 10 EU R2830 12K SCART AV2 SC1_ID 3 3V_NORMAL R2826 10K SCART AV2 AV2_R_IN_A R2846 0 AV2 ZD2801 AV2_CVBS_ZENER_KEC MULTI R2805 75 R2848 0 EU R2825 10K SCART AV2 R2...

Page 29: ...MMBT3904 NXP OPT E B C Q3005 MMBT3904 NXP OPT E B C Q3003 MMBT3904 NXP OPT E B C Q3002 MMBT3904 NXP OPT E B C R3003 1K HEAD_PHONE C3002 1000pF 50V OPT C3000 10uF 16V HEAD_PHONE R3001 3 3K OPT R3002 1K HEAD_PHONE SIDE_HP_MUTE R3006 100 RS232C_PHONE C3008 0 1uF RS232C_PHONE C3011 0 1uF RS232C_PHONE ZD3001 ADUC 20S 02 010L 20V OPT IC3001 MAX3232CDR EAN41348201 RS232C_PHONE 3 C1 2 V 4 C2 1 C1 6 V 5 C2...

Page 30: ...PONENTS IN THE SYMBOL MARK OF THE SCHEMETIC RS232C_MSTAR_DEBUG_4P 2014 04 24 40 M1A_URSA9_UD JP_GND2 JP_GND1 RGB_DDC_SDA JP_GND4 RGB_DDC_SCL JP_GND3 PM_TXD P4000 12507WS 04L 1 VCC 2 PM_RXD 3 GND 4 RM_TXD 5 GND R4000 100 R4001 100 3 5V_ST PM_RXD P4001 12507WS 04L 1 2 3 4 5 RS 232C 4PIN MSTAR DEBUG 4PIN RS 232C 4PIN MSTAR DEBUG 4PIN Copyright 2015 LG Electronics Inc All rights reserved Only for trai...

Page 31: ...CTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC 2014 04 24 TP_EU 41 M1A_URSA9_UD URSA_RESET EPHY_TN AV2_CVBS_DET EPHY_TP EPHY_RP EPHY_RN HP_LOUT HP_ROUT HDMI_ARC SPDIF_OUT HP_DET DEMOD_RESET SIDE_HP_MUTE CI_CD2 CI_DET CI_CD1 TP for EU Copyright 2015 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 32: ... 3 4 5 6 7 8 9 10 11 DDC2_DL_SCL R4606 1 8K 3 5V_ST R4609 100 OPT C4605 18pF 50V EYE_SENSOR 3 5V_ST IR L4600 BLM18PG121SN1D C4602 0 1uF 16V P4601 12507WR 08L OPT 1 2 3 4 5 6 7 8 9 DDC2_DL_SDA C4604 100pF 50V R4604 10K 1 VA4600 OPT KEY2 C4601 1000pF 50V R4601 100 R4603 10K 1 R4602 100 C4606 18pF 50V EYE_SENSOR C4600 0 1uF 16V R4608 100 OPT R4600 3 3K C4603 0 1uF 16V KEY1 3 5V_ST IR_SDA IR_SCL R4605...

Page 33: ...15 W5 PWM_PM GPIO200 D4 PM_UART_TX GPIO_PM 1 GPIO8 L15 PM_UART_RX GPIO_PM 5 GPIO12 Y11 IC101 2 LGE2136 256M M1A_256M_UO7_AVS LVA4P TTL_B 0 HCONV GPIO170 U19 LVA4M TTL_B 1 E_O GPIO171 T20 LVA3P TTL_B 2 FB GPIO172 T21 LVA3M TTL_B 3 OPT_P GPIO173 T19 LVACKP TTL_B 4 MCLK GPIO174 R21 LVACKM TTL_B 5 GCLK GPIO175 R20 LVA2P TTL_B 6 GST GPIO176 R19 LVA2M TTL_B 7 POL GPIO177 P20 LVA1P TTL_G 0 EPI0 GPIO178 P...

Page 34: ..._SD GPIO166 F7 I2S_OUT_WS GPIO164 F5 USB0_DM C4 USB1_DM Y12 USB0_DP B4 USB1_DP AA12 BIN0M J2 BIN0P J3 GIN0M K3 GIN0P J1 RIN0M K2 RIN0P K1 HSYNC0 M6 VSYNC0 L6 BIN1M L2 BIN1P L3 GIN1M M1 GIN1P M2 RIN1M N1 RIN1P N3 SOGIN1 M3 IC101 3 LGE2135 128M M1A_128M_UO7_AVS ARC0 M4 RXC0N W7 RXC0P Y8 RXC1N W8 RXC1P Y9 RXC2N AA9 RXC2P W9 RXCCKN AA7 RXCCKP Y7 CEC GPIO6 N2 DDCDA_CK GPIO27 E3 DDCDA_DA GPIO28 E2 DDCDC...

Page 35: ...0pF 50V 10uF C5610 35V C5620 22000pF 50V C5606 1uF 10V 24V_AMP R5606 100 1 16W L5605 SP 7850_10 10uH R5613 4 7K R5610 4 7K C5608 33pF 50V 10uF C5613 35V R5600 10K OPT 0 1uF C5623 50V R5604 100 24V_AMP L5604 SP 7850_10 10uH 0 1uF C5627 50V SPK_L 24V AUD_SCK AMP_RESET 0 1uF C5628 50V C5617 22000pF 50V C5607 33pF 50V AMP_SDA POWER_DET R5602 0 OPT C5601 0 1uF 50V R5615 4 7K C5630 4 7uF 50V 3216 C5631 ...

Page 36: ... ADJ NC 2 GND 4 IN 1 EN 5 OUT C3727 0 1uF 16V T2_OR_CHINA C3716 0 1uF 16V T2_OR_CHINA LNB_OUT L3704 UBW2012 121F R3707 0 T2 C3718 100pF 50V T2_OR_CHINA L3702 BLM18PG121SN1D T2_OR_CHINA C3729 0 1uF 16V T2_OR_CHINA C3707 1 18pF TU_ATSC AR3700 1 47 CHINA TU_GND_A C3737 10uF 10V T2_OR_CHINA TDJH G301D TU3700 TUNER_T C 47 SHIELD 6 IF P 7 IF N 8 SIF 9 CVBS 1 3 3V 2 NC_1 3 IF_AGC 4 SCL_RF 5 SDA_RF A1 A1 ...

Page 37: ... 16W 5 R13587 20K 1 16W 1 URSA11_VID C13406 2200pF 50V R13401 0 3 3V_U_NORMAL VID0 VID_CTRL R13426 10K OPT R13594 10K OPT R13425 10K 12V R13403 4 7 C13408 10uF 16V C13402 0 1uF 16V R13410 20K 1 C13407 1uF 10V C13404 470pF 50V C13405 0 1uF 16V R13595 10K OPT L13402 L13403 1 0uH R13402 3 3 1 10W 5 IC13402 TPS53513RVER 1 RF 3 EN 7 SW_2 9 SW_4 10 PGND_1 11 PGND_2 12 PGND_3 13 PGND_4 14 PGND_5 15 VIN_1...

Page 38: ...33 OPT R13511 33 OPT R13512 33 OPT R13513 33 OPT R13514 33 OPT R13515 33 OPT R13516 33 OPT HTPDAn R13557 10K URSA_TX_HTPD_pulldown R13556 220 R13552 10K OPT LOCKAn Q1351 2N3906S RTK PNP_KEC MULTI E B C Q1351 1 MMBT3906 NXP PNP_NXP MULTI E B C 3 3V_U_NORMAL R13555 22 LD1351 SML 512UW URSA_OPT_1 R13586 100K R13585 100K VID0 VID1 R13506 0 OPT URSA_RESET_READY SW1351 1 2 4 3 R13517 0 R13503 0 OPT 5V_D...

Page 39: ...DR_VBP_A_3 R13 AVDD_DDR_VBP_A_4 R14 AVDD_DDR_VBN_A_1 A16 AVDD_DDR_VBN_A_2 B16 AVDD_DDR_VBN_A_3 P13 AVDD_DDR_VBN_A_4 P14 AVDD_DDR_VBP_B_1 U18 AVDD_DDR_VBP_B_2 U19 AVDD_DDR_VBP_B_3 Y27 AVDD_DDR_VBP_B_4 Y28 AVDD_DDR_VBN_B_1 V18 AVDD_DDR_VBN_B_2 V19 AVDD_DDR_VBN_B_3 AB27 AVDD_DDR_VBN_B_4 AB28 GND_1 H1 GND_2 K1 GND_3 A2 GND_4 B2 GND_5 G2 GND_6 J2 GND_7 L2 GND_8 N2 GND_9 P2 GND_10 W2 GND_11 Y2 GND_12 AB...

Page 40: ...NXP NPN_NXP MULTI E B C 1 8V LOCKn_IN HTPDn_IN Q13034 1 MMBT3904 NXP NPN_NXP MULTI E B C Q13032 2N3904S NPN_KEC MULTI E B C R13046 100 LOCKAn HTPDAn R13035 10K R13043 10K Q13031 2N3904S NPN_KEC MULTI E B C IC119 LGE5352 URSA11 PAD_RA0N AH5 PAD_RA0P AG5 PAD_RA1N AF5 PAD_RA1P AG6 PAD_RA2N AF6 PAD_RA2P AG7 PAD_RACKN AH7 PAD_RACKP AF7 PAD_RA3N AH8 PAD_RA3P AG8 PAD_RA4N AF8 PAD_RA4P AG9 PAD_RB0N AF9 PA...

Page 41: ...D WEZ H23 PAD_IO 95 B ODT CD ODT J23 PAD_IO 91 B CKE CD CKE J27 PAD_IO 76 B RST CD RST D28 PAD_IO 101 B MCLK CD MCLK K28 PAD_IO 100 B MCLKZ CD MCLKZ J26 PAD_IO 99 B CSB1 C CSB1 D25 PAD_IO 98 B CSB2 D CSB2 C28 PAD_IO 121 B DQ 0 C DQL0 N27 PAD_IO 103 B DQ 1 C DQL1 L26 PAD_IO 120 B DQ 2 C DQL2 N26 PAD_IO 104 B DQ 3 C DQL3 L27 PAD_IO 123 B DQ 4 C DQL4 P26 PAD_IO 102 B DQ 5 C DQL5 K27 PAD_IO 122 B DQ 6...

Page 42: ...DC_SCL_HDMI1 DDC_SCL_HDMI2 DDC_SDA_HDMI2 IC1391 AT24C02C SSHM T EEPROM_EDID_Atmel MULTI 3 A2 2 A1 4 GND 1 A0 5 SDA 6 SCL 7 WP 8 VCC 5V_DDC_1 5V_DDC_2 5V_DDC_1 5V_DDC_2 5V_DDC_1 DDC_SDA_HDMI1 DDC_SCL_HDMI1 5V_DDC_2 IC1392 AT24C02C SSHM T EEPROM_EDID_Atmel MULTI 3 A2 2 A1 4 GND 1 A0 5 SDA 6 SCL 7 WP 8 VCC DDC_SDA_HDMI2 DDC_SCL_HDMI2 5V_DET_HDMI_1 5V_DET_HDMI_2 DDC_DL_EN R1431 0 DDC1_DL_SCL R1432 0 D...

Page 43: ...0X6 0X10 5H SMD_GASKET MDS62110225 M13003 GASKET_8 0X6 0X10 5H SMD_GASKET MDS62110225 M13000 GASKET_8 0X6 0X10 5H SMD_GASKET MDS62110225 M13005 GASKET_8 0X6 0X10 5H SMD_GASKET MDS62110225 M13010 GASKET_8 0X6 0X10 5H SMD_GASKET MDS62110225 M13009 GASKET_8 0X6 0X10 5H SMD_GASKET MDS62110225 M13007 GASKET_8 0X6 0X10 5H SMD_GASKET MDS62110225 M13002 GASKET_8 0X6 0X10 5H SMD_GASKET MDS62110225 M13008 G...

Page 44: ......

Page 46: ... viewing power auto on off 8 8 C Audio error No audio Normal video 9 9 Wrecked audio discontinuation noise 10 10 D Function error Remote control Local switch checking 11 11 External device recognition error 12 12 E Noise Circuit noise mechanical noise 13 13 F Exterior error Exterior defect 14 First of all Check whether there is SVC Bulletin in GCSC System for these model Contents of Standard Repai...

Page 47: ...d White Balance value before replacing the Main Board Replace Main Board Re enter White Balance value Precaution Established date Standard Repair Process Revised date 1 14 Error symptom A Video error No video Normal audio A4 A1 A2 A6 A3 First of all Check whether all of cables between board is inserted properly or not Main B D Power B D LVDS Cable Speaker Cable IR B D Cable Normal Audio On Y N Nor...

Page 48: ...AIN B D Replace Power Board and repair parts Standard Repair Process A Video error No video No audio A4 Established date Revised date 2 14 Error symptom End Normal Voltage Y N Copyright 2015 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 49: ... Y N Y Y By using Digital signal level meter By using Diagnostics menu on OSD Menu Setup Cutomer Support Signal Test Signal strength Normal over 50 Signal Quality Normal over 50 Y Contact with signal distributor or broadcaster Cable or Air N N Y N A6 Standard Repair Process Established date Revised date 3 14 Error symptom End Normal Signal Normal Picture Normal Picture Normal Picture SVC Bulletin ...

Page 50: ...tting match with installed ANT N Y N A6 Standard Repair Process Established date Revised date 4 14 Error symptom Check satellite setting Check LNB frequency Check satellite Check Satellite connection DiSEqC motor etc Contact with signal distributor or broadcaster Cable or Air N Check Tuner soldering Replace Main B D Normal Picture End Normal Picture Normal Setting SVC Bulletin Normal Signal End En...

Page 51: ...n B D Replace Main B D N N A Video error Color error A7 N Y Replace module Request repair for external device cable Check Test pattern A10 A8 A9 Standard Repair Process Established date Revised date 5 14 Error symptom End Color error Color error External device Cable Normal External device Cable Normal External Input Co mponent error HDMI error Copyright 2015 LG Electronics Inc All rights reserved...

Page 52: ... Main B D Check screen condition by input External Input Component RGB HDMI DVI Request repair for external device Connect other external device and cable Check normal operation of External Input Component HDMI by connecting Jig pattern Generator Set top Box etc Replace Main B D N Y Check S W Version Y N S W Upgrade Y N Y N Replace Main B D Replace Module Established date Revised date 6 14 Error s...

Page 53: ...each output of Power B D N Y Replace Main B D Y Replace Main B D N Y Check ST BY 3 5V Replace Power B D N Replace Power B D Y A11 A12 A13 A4 Standard Repair Process Established date Revised date 7 14 Error symptom Stand By Red End Power LED On Normal Voltage Normal Voltage Normal Operati on Copyright 2015 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Us...

Page 54: ...TIMER 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 off by End of Recording POWEROFF_SWDOWN Power off by S W Download POWEROFF_UNKNOWN Power off by unknown...

Page 55: ...ts Check Speaker disconnection N Y Replace Speaker Replace MAIN Board C Audio error No audio Normal video A15 A16 Established date Revised date 9 14 Error symptom Standard Repair Process End Normal Voltage Off Disconn ection Copyright 2015 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 56: ...ovider Y Check audio B Voltage 24V In case of External Input signal error Check and fix external device Replace Main B D N Established date Revised date 10 14 Error symptom Standard Repair Process A16 End Signal Normal Normal Voltage Normal Audio Wrecked Audio Discontinuation Noise for all audio Wrecked Audio Discontinuation Noise only for D TV Wrecked Audio Discontinuation Noise only for Analog W...

Page 57: ...connection Connector solder Check B 3 5V On Main B D A17 N N Check 3 5v on Power B D Replace Power B D or Replace Main B D Power B D don t have problem A4 Check IR Output signal N Y Repair Replace IR B D N A17 Replace Main B D Y A17 Standard Repair Process Established date Revised date 11 14 Error symptom End Normal Operating Normal Voltage Normal Signal Normal Operating Normal Operating End Y Cop...

Page 58: ...h technical information D Function error External device recognition error Established date Revised date 12 14 Error symptom Standard Repair Process Signal Input Technical information External Input and Component Recognition error HDMI Optical Recognition error Copyright 2015 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 59: ...n 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 Established date Revised date 13 14 Error symptom Standard Repair...

Page 60: ... stand F Exterior defect Exterior defect Established date Revised date 14 14 Error symptom Standard Repair Process Module damage Cabinet damage Remote control damage Stand damage Copyright 2015 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 61: ...k Link Cable LVDS reconnection condition A8 A9 9 10 Adjustment Test pattern ADJ Key A10 11 A Video error_Vertical Horizontal bar residual image light spot Connection diagram A8 12 Check Link Cable LVDS reconnection condition A8 A9 13 Adjustment Test pattern ADJ Key A10 14 Appendix Defected Type caused by T Con Inverter Module Exchange T Con Board 1 A 1 5 15 Exchange T Con Board 2 A 2 5 16 Exchange...

Page 62: ...ODE checking method A14 24 C Audio error_No audio Normal video Checking method in menu when there is no audio A15 25 Voltage and speaker checking method when there is no audio A16 26 C Audio error_Wrecked audio discontinuation Voltage and speaker checking method in case of audio error A16 27 D Function error_ No response in remote control key error Remote control operation checking method A17 Cont...

Page 63: ... Normal audio A1 Established date Revised date Error symptom Content After turning on the power and disassembling the case check with the naked eye whether you can see light from module holes Copyright 2015 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 64: ...video Normal audio A2 Established date Revised date Error symptom Content Check the Voltage between LED LED The voltage spec is in Power B D Spec sheet Refer the Power B D Spec sheet Copyright 2015 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 65: ...ymptom Content Entry method 1 Press the ADJ button on the remote control for adjustment 2 Enter into White Balance of item 7 3 After recording the R G B GAIN Cut value of Color Temp Cool Medium Warm re enter the value after replacing the MAIN BOARD Copyright 2015 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 66: ...Power Board Main Board SMAW200 H28S5K 1 PWR_ON 2 DRV ON 3 P DIM 4 P DIM2 5 3 5V 6 GND 7 3 5V 8 3 5V 9 GND 10 GND 11 12V 12 12V 13 12V 14 12V 15 12V 16 GND 17 GND 18 24V 19 24V 20 24V 21 24V 22 GND 23 GND 24 N C 25 SCLK 26 GND 27 SIN 28 VSYNC Check DC 3 5V 12V 24V Copyright 2015 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 67: ...dB etc Standard Repair Process Detail Technical Manual TUNER input signal strength checking method A Video error_Video error video lag stop A5 Established date Revised date Error symptom Content ALL MODELS Copyright 2015 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 68: ... lag stop 1 Checking method for remote control for adjustment Press the IN START with the remote control for adjustment Version A6 Established date Revised date Error symptom Content ALL MODELS Copyright 2015 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 69: ...zontal bar residual image light spot As the part connecting to the external input check the screen condition by signal A7 Established date Revised date Error symptom Content ALL MODELS Copyright 2015 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 70: ...pair Process Detail Technical Manual Check and replace Link Cable LVDS and contact condition A Video error_Color error A8 A9 Established date Revised date Error symptom Content Copyright 2015 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 71: ... patterns using the ADJ Key Checking item 1 Defective pixel 2 Residual image 3 MODULE error ADD BAR SCAN BAR 4 Video error Classification of MODULE or Main B D A10 Established date Revised date Error symptom Content Copyright 2015 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 72: ...n Solder defect CNT Broken Solder defect CNT Broken Solder defect CNT Broken Abnormal Power Section Solder defect Short Crack Abnormal Power Section Solder defect Short Crack Appendix Exchange T Con Board 1 Copyright 2015 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 73: ...ower Section Solder defect Short Crack Fuse Open Abnormal power section Noise GRADATION GRADATION Abnormal Display Appendix Exchange T Con Board 2 Copyright 2015 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 74: ...pendix Exchange PSU LED driver No Light Dim Light Dim Light Dim Light No picture Sound Ok Copyright 2015 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 75: ...Press damage Crosstalk Crosstalk Press damage Panel Mura Light leakage Press damage Un repairable Cases In this case please exchange the module Copyright 2015 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 76: ...lock Source TAB IC Defect Horizontal Block Gate TAB IC Defect Horizontal line Gate TAB IC Defect Gate TAB IC Defect Horizontal Block Gate TAB IC Defect Appendix Exchange the Module 2 Un repairable Cases In this case please exchange the module Copyright 2015 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 77: ...LED B Power error _No power A11 Established date Revised date Error symptom Content ST BY condition Red Front LED control Menu Option Standby Light On Off Copyright 2015 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 78: ...Board SMAW200 H28S5K 1 PWR_ON 2 DRV ON 3 P DIM 4 P DIM2 5 3 5V 6 GND 7 3 5V 8 3 5V 9 GND 10 GND 11 12V 12 12V 13 12V 14 12V 15 12V 16 GND 17 GND 18 24V 19 24V 20 24V 21 24V 22 GND 23 GND 24 N C 25 SCLK 26 GND 27 SIN 28 VSYNC Check the Main Power Voltage 5 7 8 Pin STBY status 3 5V Copyright 2015 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 79: ...n Board SMAW200 H28S5K 1 PWR_ON 2 DRV ON 3 P DIM 4 P DIM2 5 3 5V 6 GND 7 3 5V 8 3 5V 9 GND 10 GND 11 12V 12 12V 13 12V 14 12V 15 12V 16 GND 17 GND 18 24V 19 24V 20 24V 21 24V 22 GND 23 GND 24 N C 25 SCLK 26 GND 27 SIN 28 VSYNC Check power on Pin 1 pin is high about 3 3V Copyright 2015 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 80: ... item 3 Standard Repair Process Detail Technical Manual POWER OFF MODE checking method B Power error _Off when on off whiling viewing ALL MODELS A14 Established date Revised date Error symptom Content Copyright 2015 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 81: ...r Check Standard Repair Process Detail Technical Manual Checking method in menu when there is no audio C Audio error_No audio Normal video ALL MODELS A15 Established date Revised date Error symptom Content Copyright 2015 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 82: ...put voltage supplied from Power Board If there is no input voltage remove and check the connector 3 Connect the tester RX1 to the speaker terminal and if you hear the Chik Chik sound when you touch the GND and output terminal the speaker is normal Standard Repair Process Detail Technical Manual Voltage and speaker checking method when there is no audio C Audio error_No audio Normal video A16 Estab...

Page 83: ... normal when the Analog Tester needle moves slowly and defective when it does not move at all Standard Repair Process Detail Technical Manual Remote control operation checking method D Function error_ No response in remote control key error ALL MODELS A17 Established date Revised date Error symptom Content P4600 Sub Ass y Main Ass y Copyright 2015 LG Electronics Inc All rights reserved Only for tr...

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