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LG 22LV2500 Service Manual

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LED LCD TV

SERVICE MANUAL

CHASSIS : LA01T
MODEL : 22LV2500
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL66990002 (1103-REV00)
North/Latin America
Europe/Africa
Asia/Oceania
22LV2500-UA
Internal Use Only
http://aic.lgservice.com
http://eic.lgservice.com
http://biz.lgservice.com
Printed in Korea

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  • 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 : LA01T MODEL : 22LV2500 22LV2500-UA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL66990002 (1103-REV00) Printed in Korea...

  • Page 2: Table Of Contents

    CONTENTS ....................2 SAFETY PRECAUTIONS ................. 3 SPECIFICATION ..................6 ADJUSTMENT INSTRUCTION .............. 10 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

    Temp : 0 ~ 40 deg Humidity : ~ 80 % Storage Environment Temp : -20 ~ 60 deg Humidity : -85 % Copyright LG Electronics. Inc. All right reserved. - 6 - LGE Internal Use Only Only for training and service purposes...
  • Page 7 DQA Medium 0.293 0.295 0.297 8000K 0.303 0.305 0.307 Warm 0.311 0.313 0.315 6500K 0.327 0.329 0.331 Copyright LG Electronics. Inc. All right reserved. - 7 - LGE Internal Use Only Only for training and service purposes...
  • Page 8 800*600 37.879 60.31 40.00 VESA(SVGA) 1024*768 48.363 60.00 65.00 VESA(XGA) 1280*768 47.776 59.870 79.5 CVT(WXGA) 1360*768 47.712 60.015 85.50 VESA(WXGA) Copyright LG Electronics. Inc. All right reserved. - 8 - LGE Internal Use Only Only for training and service purposes...
  • Page 9 HDTV 1080P 1920*1080 26.97 23.976 74.176 HDTV 1080P 1920*1080 33.75 30.000 74.25 HDTV 1080P 1920*1080 33.71 29.97 74.176 HDTV 1080P Copyright LG Electronics. Inc. All right reserved. - 9 - LGE Internal Use Only Only for training and service purposes...

  • Page 10: Adjustment Instruction

    3.3 Etc (1) Ship-out mode (2) Service Option Default (3) USB Download(S/W Update, Option, Service only) (4) ISP Download (Optional) Copyright LG Electronics. Inc. All right reserved. - 10 - LGE Internal Use Only Only for training and service purposes...
  • Page 11 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 Copyright LG Electronics. Inc. All right reserved. - 11 - LGE Internal Use Only...
  • Page 12 6.White Balance, you can select one of 2 Test-pattern: ON, OFF. Default is inner(ON). By selecting OFF, you can adjust using RF signal in 204 Gray pattern. Copyright LG Electronics. Inc. All right reserved. - 12 - LGE Internal Use Only Only for training and service purposes...
  • Page 13 Stand-by mode. 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 Copyright LG Electronics. Inc. All right reserved. - 13 - LGE Internal Use Only Only for training and service purposes...
  • Page 14 METAL GND <Step4> <Step5> - Internal Pressure TEST = POWER CORD GND & LIVE & NEUTRAL • LEAKAGE CURRENT: At 0.5mArms Copyright LG Electronics. Inc. All right reserved. - 14 - LGE Internal Use Only Only for training and service purposes...
  • Page 15 2. Select "Tool Option 1" and Push “OK” button. 3. Punch in the number. (Each model has their number.) 4. Updating is starting. Copyright LG Electronics. Inc. All right reserved. - 15 - LGE Internal Use Only Only for training and service purposes...

  • Page 16: Exploded View

    X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. Copyright LG Electronics. Inc. All right reserved. - 16 - 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 FRC_HW_OPT...
  • 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 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 21 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 22 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 23 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 24 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 25 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 26 +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 27 +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 28 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 29 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 30 * 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 31 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 32 +5V_Normal +12V/+15V +3.5V_ST +24V/+15V PANEL_POWER R7561 24V-->3.48V 100K +24V/+15V +24V_LED 5V_PANEL 12V_PANEL 15V-->3.56V L7504 MLB-201209-0120P-N2 A d a p t e r L7504-*1 S T _ 3 . 5 V - - > 3 . 5 V - - > 3 . 3 7 5 V NON_Adapter CIS21J121 A d a p t e r...
  • Page 33 CONTROL IR & LED +3.5V_ST R2404 R2405 19-22_LAMP P7600 19-22_LAMP 12507WR-03L L7600 BLM18PG121SN1D L7601 BLM18PG121SN1D 19-22_LAMP C7600 C7601 0 . 1 u F 0 . 1 u F 19-22_LAMP 19-22_LAMP 19-22_LAMP 19-22_LAMP EYEQ/TOUCH_KEY R2411 EYEQ/TOUCH_KEY OLD_SUB NEW_SUB NEC_EEPROM_SCL P2401 P2402 12507WR-12L 12507WR-15L 5.6V...
  • Page 34 [51Pin LVDS Connector] ( F o r F H D 6 0 / 1 2 0 H z ) PANEL_VCC L702 120-ohm WAFER_FHD P703 [30Pin LVDS Connector] 41PIN WAFER DELETE, HONGSU, 201011115 [30Pin LVDS Connector] FI-RE51S-HF-J-R1500 ( F o r H D 6 0 H z _ S m a l l ) (For HD 60Hz_Normal) PANEL_VCC WAFER_FHD...
  • Page 35 GP2R_GLOBAL_TUNER_BLOCK for Small Model +5V_TU BOOSTER : CHINA OPT RF_SWITCH_CTL P u l l - u p c a n ’ t b e a p p l i e d L3701 BOOSTER_OPT because of MODEL_OPT_2 BLM18PG121SN1D BOOSTER_OPT R3734 BOOSTER_OPT R3743 close to TUNER Q3701...
  • Page 36 NON_L/DIM_LED/DRIVER NON_3D_SG L/DIM_MOSI M_REMOTE_RX M_REMOTE_TX L/DIM_SCLK LED_DRIVER_D/L_SCL M_RFModule_RESET LED_DRIVER_D/L_SDA DC_MREMOTE V_SYNC DD_MREMOTE 3D_GPIO_1 3D_GPIO_2 3D_SYNC_RF 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 NON_L/DIM THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
  • Page 37 I N H I B I T C O M P O N E N T P L A C E F O R C A B L E C7514 L 7 9 1 2 L 7 5 0 3 IC7507 L 7 5 0 4 L7861...
  • Page 40 Replace Mstar(IC101) or Main Board Check Inverter Control & Error Out Check Module P7501 11 pin : Low P7501 12 pin : High Change Module Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 41 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 42 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 43: Component Video

    Check JK1603 Replace Jack Y/PB/PR signal Line Check COMP_DET Signal Replace 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 44 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 45 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 46 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 47 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 48 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 49 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 50 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...

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