LG 37LV3500 Service Manual
  1. Manuals
  2. Brands
  3. LG Manuals
  4. LCD TV
  5. 37LV3500
  6. Service manual

LG 37LV3500 Service Manual

Led lcd tv
Hide thumbs Also See for 37LV3500:
Table of Contents

Advertisement

Quick Links

See also: Owner's Manual , User Manual
LED LCD TV

SERVICE MANUAL

CHASSIS : LJ01U
MODEL : 37LV3500
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL62886936 (1104-REV00)
North/Latin America
Europe/Africa
Asia/Oceania
37LV3500-SA
Internal Use Only
http://aic.lgservice.com
http://eic.lgservice.com
http://biz.lgservice.com
Printed in Korea

Advertisement

Table of Contents
loading

Related Manuals for LG 37LV3500

Summary of Contents for LG 37LV3500

  • Page 1: Service Manual

    Internal Use Only North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com LED LCD TV SERVICE MANUAL CHASSIS : LJ01U MODEL : 37LV3500 37LV3500-SA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL62886936 (1104-REV00) Printed in Korea...

  • Page 2: Table Of Contents

    CONTENTS ....................2 SAFETY PRECAUTIONS ................. 3 SPECIFICATION ..................6 ADJUSTMENT INSTRUCTION............... 11 EXPLODED VIEW .................. 16 SVC. SHEET ....................Copyright LG Electronics. Inc. All right reserved. - 2 - LGE Internal Use Only Only for training and service purposes...

  • Page 3: Safety Precautions

    An other abnormality exists that must be corrected before the receiver is returned to the customer. Copyright LG Electronics. Inc. All right reserved. - 3 - LGE Internal Use Only Only for training and service purposes...

  • Page 4: Servicing Precautions

    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 Copyright LG Electronics. Inc. All right reserved. - 4 - LGE Internal Use Only Only for training and service purposes...
  • Page 5 CAUTION: Maintain original spacing between the replaced component and adjacent components and the circuit board to prevent excessive component temperatures. Copyright LG Electronics. Inc. All right reserved. - 5 - LGE Internal Use Only Only for training and service purposes...

  • Page 6: Specification

    1) Performance: LGE TV test method followed 2) Demanded other specification - Safety : UL, CSA, IEC specification - EMC: FCC, ICES, IEC specification Copyright LG Electronics. Inc. All right reserved. - 6 - LGE Internal Use Only Only for training and service purposes...
  • Page 7 Temp : 0 ~ 40 deg Humidity : ~ 80 % Storage Environment Temp : -20 ~ 60 deg Humidity : -85 % Copyright LG Electronics. Inc. All right reserved. - 7 - LGE Internal Use Only Only for training and service purposes...
  • Page 8 * The W/B Tolerance is ± 0.015 for Standard 0.270 0.285 0.300 Adjustment 0.278 0.293 0.308 Warm 0.298 0.313 0.324 0.314 0.329 0.344 Copyright LG Electronics. Inc. All right reserved. - 8 - LGE Internal Use Only Only for training and service purposes...
  • Page 9 Max Vertical Freq - 62 Hz Min Horiz. Freq - 30 kHz Max Horiz. Freq - 83 kHz Pixel Clock - 160 MHz Copyright LG Electronics. Inc. All right reserved. - 9 - LGE Internal Use Only Only for training and service purposes...
  • Page 10 Max Vertical Freq - 62 Hz Min Horiz. Freq - 30 kHz Max Horiz. Freq - 83 kHz Pixel Clock - 160 MHz Copyright LG Electronics. Inc. All right reserved. - 10 - LGE Internal Use Only Only for training and service purposes...

  • Page 11: Adjustment Instruction

    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. Copyright LG Electronics. Inc. All right reserved. - 11 - LGE Internal Use Only Only for training and service purposes...
  • Page 12 18966 51209 10520 32LK330-SB 17984 18966 51209 10520 32LK330-SB 32LK330-SB 17984 18966 51209 10520 (CoMS) 26LK330-SB 13896 18966 51209 10520 Copyright LG Electronics. Inc. All right reserved. - 12 - LGE Internal Use Only Only for training and service purposes...
  • Page 13 **: Month : Controlled / Data:00 G Gain ***:Year : Controlled ****:Check sum B Gain R Cut G Cut B Cut Copyright LG Electronics. Inc. All right reserved. - 13 - LGE Internal Use Only Only for training and service purposes...

  • Page 14: Auto Download

    DVI-D to HDMI or HDMI to HDMI Item Condition Data(Hex) Manufacturer ID 1E6D Version Digital : 1 Revision Digital : 3 Copyright LG Electronics. Inc. All right reserved. - 14 - LGE Internal Use Only Only for training and service purposes...
  • Page 15 GND is impacted on 1.5 kV/min at 100mA(GND) and 3kV/min at 100mA(Signal) HDMI 2 (Check sum:B4, 55) HDMI 3 (Check sum:B4, 45) Copyright LG Electronics. Inc. All right reserved. - 15 - LGE Internal Use Only Only for training and service purposes...
  • Page 17 IC102 S7M-PLUS_DivX_MS10 NAND01GW3B2CN6E NAND FLASH MEMORY +3.3V_Normal +3.3V_Normal LGE107DC-RP [S7M+ DIVX/MS10] NC_1 NC_29 NAND_FLASH_1G_NUMONYX /PF_CE0 IC101 NC_2 NC_28 EAN60762401 H : S e r i a l F l a s h L : N A N D F l a s h PCM_A[0-7] PCM_D[0-7] NC_3...
  • Page 18 RSDS Power OPT +3.3V_Normal +1.26V_VDDC VDDC 1.26V +1.26V_VDDC MODEL OPTION VDD_RSDS:88mA VDDC : 2026mA MODEL OPTION VDD_RSDS PIN NAME HIGH PIN NO. OPT_0 OPT_4 L213 +2.5V_Normal BLM18PG121SN1D N O _ F R C : L O W L O W MODEL_OPT_0 NO FRC U 3 _ I N T E R N A L...
  • Page 19 EAN61829001 EAN61857101 EAN61857201 IC301-*3 IC301-*2 K4B1G1646G-BCH9 IC301-*4 H5TQ1G63DFR-PBC NT5CB64M16DP-CF FRC_DDR_1600_HYNIX FRC_DDR_1333_SS_NEW FRC_DDR_1333_NANYA_NEW VREFCA VREFCA VREFCA VREFDQ VREFDQ VREFDQ VCC1.5V_U3_DDR DDR3 1.5V By CAP - Place these Caps near Memory VCC1.5V_U3_DDR VDD_1 VDD_1 +1.5V_FRC_DDR A10/AP VDD_2 VDD_1 A10/AP VDD_2 VDD_3 A10/AP VDD_2 VDD_3 A12/BC...
  • Page 20 S T _ 3 . 5 V - - > 3 . 3 7 5 V - - > 3 . 4 6 V +12V/+15V 2 0 V - - > 3 . 5 1 V - - > 3 . 7 6 V ( 3 . 5 9 V ) +12V/+15V + 3 .
  • Page 21 CRYSTAL_KDS X1002-*1 32.768KHz +3.5V_ST NEW_SUB R4034 4.7K X1002 32.768KHz NEW_SUB R4035 CRYSTAL_EPSON 4.7K R1034 4.7M CRYSTAL_KDS +3.5V_ST R1091 f o r D e b u g g e r MICOM_DEBUG_WAFER TP1601 P1001 +3.5V_ST 12505WS-12A00 C1010 0 . 1 u F T O P S I D E f o r r e s e t .
  • Page 22 CONTROL IR & LED +3.5V_ST EYEQ/TOUCH_KEY R2405 R2404 R2411 EYEQ/TOUCH_KEY OLD_SUB NEW_SUB NEC_EEPROM_SCL P2401 P2402 12507WR-12L 12507WR-15L 5.6V C2408 18pF D2403 L2401 R2401 BLM18PG121SN1D KEY1 EYEQ/TOUCH_KEY EYEQ/TOUCH_KEY L2402 R2402 D2402 NEC_EEPROM_SDA BLM18PG121SN1D 5.6V R2412 5.6V KEY2 C2409 D2404 AMOTECH 18pF C2401 C2402 0 .
  • Page 23 USB_DIODES EAN61849601 IC1450 L1451-*1 AP2191DSG CIS21J121 +5V_USB L1451 MLB-201209-0120P-N2 $ 0 . 0 7 7 OUT_2 IN_1 120-ohm C1452 OUT_1 IN_2 C1453 R1458 R1459 10uF 0 . 1 u F C1451 1/8W 1/8W 22uF +3.3V_Normal R1455 4.7K USB1_CTL R1454 R1451 USB1_OCD SIDE_USB_DM SIDE_USB_DP...
  • Page 24 HDMI EEPROM 5V_HDMI_1 +5V_Normal HDMI_1_RENESAS HDMI_1_ATMEL 5V_HDMI_1 5V_DET_HDMI_1 HDMI_1 IC801-*1 IC801 R1EX24002ASAS0A AT24C02BN-SH-T R830 Q802 HPD1 R896 2SC3052 $0.055 C806 R884 R888 C802 0 . 1 u F 2.7K 2.7K R804 0 . 1 u F 1.8K DDC_SCL_1 R876 DDC_SDA_1 DDC_SDA_1 R875 DDC_SCL_1...
  • Page 25 RGB/SPDIF/PC/HP New Item Development EARPHONE BLOCK HP_LOUT C1118 002:V7 10uF C1115 1000pF R1125 JK3301 Q1101 +3.3V_Normal MMBT3904-(F) KJA-PH-0-0177 MMBT3904-(F) Q1104 +3.5V_ST R1155 DETECT HP_ROUT HP_DET C1119 002:V7 10uF C1116 1000pF Q1102 R1128 MMBT3904-(F) MMBT3904-(F) Q1103 R1129 3.3K SIDE_HP_MUTE Q1106 2SC3052 RGB PC +5V_Normal PC AUDIO...
  • Page 26 RS232C R1123 JP1121 R1124 +3.5V_ST JP1122 D1107 D1108 CDS3C30GTH CDS3C30GTH C1101 0 . 3 3 u F SPG09-DB-009 IC1101 JK1101 C1106 MAX3232CDR 0 . 1 u F C1102 0 . 1 u F C1103 0 . 1 u F DOUT1 RIN1 C1104 0 .
  • Page 27 [51Pin LVDS Connector] ( F o r F H D 6 0 / 1 2 0 H z ) PANEL_VCC [30Pin LVDS Connector] [41Pin LVDS Connector] (For HD 60Hz_Normal) L702 (For FHD 120Hz) 120-ohm WAFER_FHD P705 P703 P704 FF10001-30 FI-RE51S-HF-J-R1500 FI-RE41S-HF-J-R1500 WAFER_FHD WAFER_FHD_120HZ...
  • Page 28 VCC_1.5V_DDR VCC_1.5V_DDR VCC_1.5V_DDR VCC_1.5V_DDR VCC_1.5V_DDR DDR3 1.5V By CAP - Place these Caps near Memory VCC_1.5V_DDR DDR3 1.5V By CAP - Place these Caps near Memory A-MVREFDQ A-MVREFCA B-MVREFDQ B-MVREFCA Close to DDR Power Pin Close to DDR Power Pin CLose to DDR3 CLose to Saturn7M IC CLose to Saturn7M IC...
  • Page 29 +3.3V_Normal +3.3V_Normal S_FLASH_MAIN_MACRONIX IC1401 MX25L8006EM2I-12G +3.3V_Normal C1401 /SPI_CS 0 . 1 u F SO/SIO1 HOLD# SPI_SDO SCLK /FLASH_WP SPI_SCK R1405 S I / S I O 0 SPI_SDI R1401 Q1401 KRC103S S_FLASH_MAIN_WINBOND IC1401-*1 W25Q80BVSSIG DO[IO1] HOLD[IO3] %WP[IO2] D I [ I O 0 ] THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
  • Page 30 GP2R_LARGE_TUNER +5V_TU BOOSTER : CHINA OPT RF_SWITCH_CTL L3701 BOOSTER_OPT P u l l - u p c a n ’ t b e a p p l i e d because of MODEL_OPT_2 BLM18PG121SN1D BOOSTER_OPT BOOSTER_OPT R3734 R3743 close to TUNER Q3701 BOOSTER_OPT ISA1530AC1...
  • Page 31 WOOFER AMP +3.3V_Normal +1.8V_AMP2 IC503 WOOFER AP1117E18G-13 ADJ/GND Vd=1.4V 120 mA WOOFER C5059 WOOFER C5004 C5069 0 . 1 u F 10uF 0 . 1 u F +24V WOOFER_L+ D5001 WOOFER WOOFER WOOFER 1N4148W R5013 R5073 L5004 100V R5058 10.0uH C5041 R5010 NRS6045T100MMGK...
  • Page 32 +1.8V_AMP +3.3V_Normal IC404 AP1117E18G-13 ADJ/GND Vd=1.4V 120 mA C434 C421 C446 0 . 1 u F 0 . 1 u F 10uF +24V SPK_L+ D501 1N4148W R519 R526 L506 100V R527 10.0uH C536 R535 0 . 1 u F 4.7K 3 .
  • Page 33 Rear AV COMPONENT2 AV_CVBS_IN +3.3V_Normal REAR_AV C1643 C1648 D1619 47pF 220pF R1654 R1612 R1615 +3.3V_Normal REAR_AV REAR_AV COMP2_DET ETHERNET FOR DVB_T2 R1660 D1613 JK1604 5.6V REAR_AV PPJ233-01 AV_CVBS_DET [RD]E-LUG R1666 REAR_AV D1624 C1646 5.6V [GN]E-LUG [RD]O-SPRING 0 . 1 u F R1619 REAR_AV [GN]O-SPRING...
  • Page 34 SIDE CVBS PHONE JACK ( N e w I t e m D e v e l o p m e n t ) SIDE_CVBS L9903 BLM18PG121SN1D JK9901 KJA-PH-1-0177 SIDEAV_CVBS_IN SIDE_CVBS M5_GND +3.3V_Normal SIDE_CVBS C9907 R9907 [YL]E-LUG D9901 100pF SIDE_CVBS ADUC30S03010L_AMODIODE SIDE_CVBS [YL]O-SPRING...
  • Page 35 * O p t i o n n a m e o f t h i s p a g e : C I _ S L O T ( b e c a u s e o f H o n g K o n g ) C I R e g i o n CI SLOT +5V_CI_ON...
  • Page 36 SMD GASKET THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. GP2R 20101023 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR SMD_GAS THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
  • Page 37 L/DIM_LED/DRIVER +3.3V_Normal P2100 12507WR-08L L/DIM_SCLK L/DIM_MOSI LED_DRIVER_D/L_SCL LED_DRIVER_D/L_SDA V_SYNC C2100 C2101 C2102 C2103 C2104 18pF 18pF 18pF 18pF 18pF THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. GP2R 20101023 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR L/DIM_LED THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
  • Page 38 P2100 IC401 9 4 V - 0 BAR CODE C426 R 4 1 4 L422 L402 C407 R 1 2 9 R 1 2 8 C408 L404 S O F T W A R E C420 IC407 R 1 4 5 8 L423 IC103 C 4 6 2...
  • Page 41 Check Inverter Control & Error Out P403 18 pin : High Check Power Board or Module P403 24 pin : low Change Module Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 42 IC3703 2 pin : 1.2V Check IF_P/N Signal Bad Tuner. Replace Tuner. TU3702 17/18 Pin Check Mstar LVDS Output Replace Mstar(IC101) or Main Board. Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 43 IC3703 2 pin : 1.2V Check CVBS Signal Bad Tuner. Replace Tuner. TU3702 11 Pin Check Mstar LVDS Output Replace Mstar(IC101) or Main Board. Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...

  • Page 44: Component Video

    Replace Jack Y/PB/PR signal Line Check COMP_DET Signal Replace R1614, R4223 or R1615 Check Mstar LVDS Output Replace Mstar(IC100) or Main Board. Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 45 Check JK1104 Replace Jack H/V_Sync/R/G/B Signal Line Check DSUB_DET Replace R1146 or R1147 Check Mstar LVDS Output Replace Mstar(IC100) or Main Board. Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 46 Check HDMI Signal Replace Main Board If no problem, check signal line Check Mstar LVDS Output Replace Mstar(IC101) or Main Board. Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 47 1, 2, 3, 4 pin. Replace connector Check Connector & P501 if found to be damaged. Check speaker resistance Replace speaker. and connector damage. Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 48 IC3703 2 pin : 1.2V Check IF_P/N Signal Bad Tuner. Replace Tuner. TU3702 17/18 Pin Follow procedure ‘8. All source audio’ trouble shooting guide. Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 49 IC3703 2 pin : 1.2V Check CVBS Signal Bad Tuner. Replace Tuner. TU3702 11 Pin Follow procedure ‘8. All source audio’ trouble shooting guide. Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 50 Check JK1104 & Signal Line Replace Jack Follow procedure ‘8. All source audio’ trouble shooting guide. Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 51 GP3 Carry Over 모델 Block Diagram LG Electronics/ LCD TV 연구소 연구 1실 / AT1 그룹 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 52 A. AMP _SCL/SDA SPK L/R NTP7100 DP/DM USB2.0 Side TMDS HDMI ※ GP2 대비 변경부품 : 보라색 font HDMI EEPROM AT24C02BN-SH-T Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...

This manual is also suitable for:

32lk45032lk450-sa26lv250026lv2500-sa32lv350032lv3520 ... Show all

Table of Contents