LG 32LX2R-ZE Service Manual
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LG 32LX2R-ZE Service Manual

LG 32LX2R-ZE Service Manual

Chassis: ml-051a
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LCD TV
SERVICE MANUAL
CHASSIS : ML-051A
MODEL : 32LX2R-ZE
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
website:http://biz.LGservice.com
e-mail:http://www.LGEservice.com/techsup.html

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Summary of Contents for LG 32LX2R-ZE

  • Page 1 LCD TV SERVICE MANUAL CHASSIS : ML-051A MODEL : 32LX2R-ZE CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

  • Page 2: Table Of Contents

    CONTENTS CONTENTS ....................2 PRODUCT SAFETY ..................3 SPECIFICATION ..................6 ADJUSTMENT INSTRUCTION..............11 TROUBLE SHOOTING ................15 BLOCK DIAGRAM...................18 WIRING DIAGRAM ..................19 EXPLODED VIEW .................. 20 EXPLODED VIEW PARTS LIST ..............21 REPLACEMENT PARTS LIST ............... 22 SVC. SHEET ....................- 2 -...

  • Page 3: Safety Precautions

    SAFETY PRECAUTIONS IMPORTANT SAFETY NOTICE Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the Schematic Diagram and Replacement Parts List. 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.

  • Page 4: Servicing Precautions

    SERVICING PRECAUTIONS CAUTION: Before servicing receivers covered by this service unit under test. manual and its supplements and addenda, read and follow the 2. After removing an electrical assembly equipped with ES SAFETY PRECAUTIONS on page 3 of this publication. devices, place the assembly on a conductive surface such as NOTE: If unforeseen circumstances create conflict between the aluminum foil, to prevent electrostatic charge buildup or...
  • Page 5 IC Remove/Replacement Some chassis circuit boards have slotted holes (oblong) through Circuit Board Foil Repair which the IC leads are inserted and then bent flat against the Excessive heat applied to the copper foil of any printed circuit circuit foil. When holes are the slotted type, the following technique board will weaken the adhesive that bonds the foil to the circuit should be used to remove and replace the IC.

  • Page 6: Specification

    SPECIFICATION NOTE : Specifications and others are subject to change without notice for improvement. 1. Application range This specification is applied to ML-051A chassis. 2. Requirement for Test Testing for standard of each part must be followed in below condition. (1) Temperature: 25°C ±...
  • Page 7 4. General Specification Item Specification Unit Remark Panel 32" TFT WXGA LCD Frequency range H : 31 ~ 61Khz PC Input V : 56 ~ 75Hz Control Function 1) Contrast/Brightness 2) H-Position / V-Position 3) Tracking : Clock / Phase 4) Auto Configure 5) Reset Component Jack...
  • Page 8 5.Optical Feature(LCD Module) Item Specification Remark Viewing Angle R/L, U/D 176, 176 176, 176 (CR>10) Luminance Luminance(cd/ ) Typical Variation MAX/MIN Contrast Ratio 400/800 600/1200 ALL white/All back CIE Color Coordinates WHITE Typ. 0.285 Typ. 0.293 Typ. 0.640 Typ. Typ. 0.343 Typ.
  • Page 9 8. HDMI INPUT Mode Table Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed Analog RGB, Digital RGB 720x400 31.468 70.8 28.321 640x480 31.469 59.94 25.17 VESA 37.684 75.00 31.5 VESA 800x600 37.879 60.31 40.00 VESA 46.875 49.5 VESA 832x624 49.725 74.55 57.283 1024x768 48.363 60.00...
  • Page 10 <Table 2> Scart Arrangement 2.(Half Scart) Signal Signal Level Impedance Audio Output B (right) 0.5 Vrms < 1 Audio Input B (right) 0.5 Vrms > 10 Audio Output A (left) 0.5 Vrms < 1 Ground (audio) Ground (blue) Audio input A (left) 0.5 Vrms >...

  • Page 11: Application Range

    This spec. sheet is applied to all of the ML-051A chassis 00 00 FF FF FF FF FF FF 00 1E 6D (TORNADO) manufactured at LG TV Plant 01 03 80 46 27 78 EA D9 B0 A3 57 49 9C 25 20 11 49 4B A5 6E 80 31 40 01 01 01 01 45 40 01 01 2.

  • Page 12: Adc Calibration

    4. ADC Calibration 5. white Balance 4.1 Adjustment of RF/AV/SAV 5.1 Manual white Balance (AV) * Test Equipment 1) Execute CA-110 Zero Calibration. - Remote controller for adjustment 2) Execute the SET Heat Run for 30minutes - MSPG-925F Pattern Generator->Model: 202 / Pattern: 32 3) Push the ADJ Button then you can see the OSD 4.1.1 Method of Auto RF/AV/S-VIDEO Color Balance.

  • Page 13: Shipping Conditions

    6. Shipping Conditions Item Condition Remark Power Volume Level Main Picture Input Main Last Channel Pr 01 Mute 16 : 9 Station Auto Program Manual Program Program Edit Favorite Program None Picture Dynamic Dynamic Contrast Brightness Colour Sharpness Sound Flat Balance Special Input...

  • Page 14: Svc Remocon

    SVC REMOCON To turn the TV on or off POWER To turn the TV on automatically if the power is supplied to the TV. (Use the POWER ON POWER key to deactivate): It should be deactivated when delivered. To activate the mute function. MUTE To check TV screen image easily.

  • Page 15: Troubleshooting

    TROUBLESHOOTING NO POWER (POWER INDICATOR OFF) CHECK CN804 CHECK POWER BOARD VOLTAGE (P-ST_5V) CHECK CRYCTAL CHECK CRYSTAL X800 X800(19.6608MHZ) CHECK IC806 VOLTAGE (5V) CHECK IC806 CHECK Power on/off CHECK Q1001 (5V) REPLACE POWER BOARD - 15 -...
  • Page 16 NO VIDEO CHECK THE PERIPHERAL CHECK LVDS Output IC800 P3(PIN 21, PIN 22) CHECK THE PERIPHERAL Check L2 (12V) CHECK L1022 CHECK R898 (24V) (3.3V) REPLACE LCD MODULE DOWN LOAD ISP DATA or REPLACE MAIN BOARD - 16 -...
  • Page 17 NO SOUND IS THE SPK CABLE INSERT CABLES WELL CONNECTED WELL? DOES IC302 OPERATE? CHECK IC302 OR CHANGE DOES IC301 OPERATE? CHECK IC301 OR CHANGE CHECK X300 OR CHANGE DOES IC300 OPERATE? CHECK X400 OR CHANGE DOES IC400 OPERATE? REPLACE JACK BOARD - 17 -...

  • Page 18: Block Diagram

    BLOCK DIAGRAM - 18 -...

  • Page 19: Wiring Diagram

    - 19 -...

  • Page 20: Exploded View

    - 20 -...

  • Page 21: Exploded View Parts List

    LCD(LIQUID CRYSTAL DISPLAY), LC320W01-A6K3 LG PHILIPS TFT COLOR AI ODC 6304FAU022A LCD(LIQUID CRYSTAL DISPLAY), T315XW01-A6K6 LG PHILIPS TFT COLOR WXGA AIODC 6304FLP359A LCD(LIQUID CRYSTAL DISPLAY), LC320W01-SL11 LG PHILIPS TFT COLOR 4MASK SYNC INVERTER 3809TKE030D BACK COVER ASSEMBLY, 32LX2R-ZE 3808TKE025 CSKD 3809900197B...

  • Page 22: Replacement Parts List

    REPLACEMENT PARTS LIST For Capacitor & Resistors, the CC, CX, CK, CN, CH : Ceramic RD : Carbon Film charactors at 2nd and 3rd digit in the CQ : Polyestor RS : Metal Oxide Film P/No. means as follows; CE : Electrolytic RN : Metal Film CF : Fixed Film RH : CHIP, Metal Glazed(Chip)
  • Page 23 DATE: 2005. 07. 06. DATE: 2005. 07. 06. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C1233 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP C1400 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP C1234 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP...
  • Page 24 DATE: 2005. 07. 06. DATE: 2005. 07. 06. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C907 0CH3103K516 10000PF 50V 10% B(Y5P) 2012 C826 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP C908 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP...
  • Page 25 DATE: 2005. 07. 06. DATE: 2005. 07. 06. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C1069 0CE476WF6DC 47UF MVK 16V 20% R/TP(SMD) C378 0CE475WJ6DC 4.7UF MVK 35V 20% R/TP(SMD) C1070 0CE476WF6DC 47UF MVK 16V 20% R/TP(SMD) C436...
  • Page 26 DATE: 2005. 07. 06. DATE: 2005. 07. 06. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION AB602 6210TCE002B HB-4M3216-121JT CERATECH 32 L311 6210TCE001S HU-1M2012-121 CERATECH 2012 AB603 6210TCE002B HB-4M3216-121JT CERATECH 32 L312 6210TCE001S HU-1M2012-121 CERATECH 2012...
  • Page 27 DATE: 2005. 07. 06. DATE: 2005. 07. 06. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R397 0RH0101D622 1.0 1/10W 5 TA R302 0RH2702D622 27K OHM 1 / 10 W 2012 5.00% R456 0RH1000D622 100 OHM 1 / 10 W 2012 5.00%...

  • Page 28: Control Board

    PART NO. DESCRIPTION / SPECIFICATION R799 0RH0000D622 0 OHM 1 / 10 W 2012 5.00% D SW1208 140-313B TACT 2LEAD 160G(TA) LG C&D R800 0RH0222D622 22 OHM 1 / 10 W 2012 5.00% R2111 0RH3001D622 3K OHM 1 / 10 W 2012 5.00%...

  • Page 29: Jack Board

    DATE: 2005. 07. 06. DATE: 2005. 07. 06. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R3100 0RH0000D622 0 OHM 1 / 10 W 2012 5.00% D C311 0CH3223K516 22000PF 2012 50V 10% B(Y5P) R3101 0RH4703D622 470K OHM 1 / 10 W 2012 5.00...
  • Page 30 DATE: 2005. 07. 06. DATE: 2005. 07. 06. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION Q400 0TR387500AA CHIP 2SC3875S(ALY) BK KEC - R254 0RH1001D622 1K OHM 1 / 10 W 2012 5.00% Q401 0TR387500AA CHIP 2SC3875S(ALY) BK KEC -...
  • Page 31 DATE: 2005. 07. 06. DATE: 2005. 07. 06. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R448 0RH1003D622 100K OHM 1 / 10 W 2012 5.00 C245 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP R643 0RH0000D622 0 OHM 1 / 10 W 2012 5.00% D...
  • Page 32 DATE: 2005. 07. 06. DATE: 2005. 07. 06. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION 6612B00015B "DC1R019WDH JAE 0.5MM,19PIN+" R666 0RH0222D622 22 OHM 1 / 10 W 2012 5.00% L1002 6210TCE001G HH-1M3216-501 CERATEC 3216M...
  • Page 36 Jul., 2005 P/NO : 38289S0004L Printed in Korea...

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