LG 32LX1D-UA Service Manual
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LG 32LX1D-UA Service Manual

LG 32LX1D-UA Service Manual

Chassis : al-04da
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LCD TV

SERVICE MANUAL

CHASSIS : AL-04DA
MODEL : 32LX1D-UA
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 32LX1D-UA

  • Page 1: Service Manual

    LCD TV SERVICE MANUAL CHASSIS : AL-04DA MODEL : 32LX1D-UA 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 ...............10 SVC REMOCON ..................12 HOTEL MODE..................13 TROUBLE SHOOTING ................16 BLOCK DIAGRAM...................19 WIRING DIAGRAM ..................21 EXPLODED VIEW .................. 22 EXPLODED VIEW PARTS LIST ..............23 REPLACEMENT PARTS LIST ............... 24 SVC. SHEET ....................- 2 -...

  • Page 3: Product Safety

    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 X-RADIATION, 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 3. Test and Inspection Method This specification is applied to AL-04DA chassis. 3.1 Performance : LGE TV test method followed. 2. Requirement for Test 3.2 Demanded other specification.
  • Page 7 5. External Input Format Component Video Input (Y, C Resolution H-freq(kHz) V-freq.(kHz) Pixel clock Proposed 640 x 480 15.73 SDTV ,DVD 480I 704 x 480 31.47 59.94 SDTV 480P 1280 x 720 45.00 60.00 HDTV 720P 1280 x 720 44.96 59.94 HDTV 720P 1920 x 1080...
  • Page 8 HDMI Input (PC/DTV) Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed 640*480 31.469 59.94 25.17 VESA(VGA) 640*480 37.861 72.80 31.50 VESA(VGA) 640*480 37.500 75.00 31.50 VESA(VGA) 800*600 35.156 56.25 36.00 VESA(SVGA) 800*600 37.879 60.31 40.00 VESA(SVGA) 800*600 48.077 72.18 50.00 VESA(SVGA) 800*600 46.875 75.00 49.50...
  • Page 9 6. General spec(Module) Item Unit Remark Active Screen Size 800.4(diagonal) 31.51 inches Outline Dimension 760(H) x 450(V) x 48(D) Typ. Pixel Pitch 170.25 x 510.75 x RGB Pixel Format 1366(H)x768(V) RGB stripe arrangement Color Depth 8bit 16.7 Mbit Luminance ,White cd/m2 Center 1 point Viewing Angle (CR>10)

  • Page 10: Adjustment Instruction

    ADJUSTMENT INSTRUCTION 1. Applicability 3. Full assembly process adjustment These specifications are applicable for all LCD TV models with an AL-04DA chassis that are manufactured by the <Precaution> Manufacturing Group of the Display Business Division, or Each PCB assembly must be checked using the check jig set any of its related manufacturers.
  • Page 11 3.2.4. Adjustment method 3.3.3. Manual White Balance Adjustment A) When entering the component, input 100% When adjusting after carrying out zero calibration for Horizontal Color Bar Pattern (HozTV30Bar) of the CA-100, the sensor should be tightly fixed on the supportable 720P mode, and select Component 1 LCD module surface.

  • Page 12: Svc Remocon

    SVC REMOCON FUNTION REAMARK 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.

  • Page 13: Hotel Mode

    1.1. Stationl Menu Display - Decide to enter 'Station Menu' or not in the 'Main Menu' by setting 'Station Menu Display' as Yes(Enter Possible) orNo(Enter Impossible) on the "LG Hotel Mode" OSD. 1.2. Programl Change - Decide to change channel or not by setting 'Program Change' as Yes(Change Possible) or No(Change Impossible) when present source is TV.
  • Page 14 1.3. Input Source Change - Decide to change input source or not by setting 'Input Source Change' as Yes(Change possible) or No(Change impossible). - When 'Input Source Change' is set to No(Change impossible), TV/AV key and Multimedia key doesn't work, and entering 'Input' item in the 'Main Menu OSD' is impossible.
  • Page 15 1.10. Program - Decide to turn on TV as set channel or last memorized channel or not by setting 'Channel' as On(Work) or Off(Do Not Work). - When 'Power On Operation' is set to Yes(Work), then user can enter 'Channel' and set the value. - When 'Power On Operation' is set to On(Work), setting 'Channel' value of ''Power On Operation' is possible and TV always turns on as set 'Channel' value.

  • Page 16: Troubleshooting

    TROUBLESHOOTING No power Check the condition of power Connect the connectors Related connectors. FAIL PASS Check the Measure the power board stand_by voltage : Digital ref. voltage : D_board P1401 5 th pin FAIL Power board CN804 ST_ 6V 1th pin 24V FAIL PASS Replace Power_board...
  • Page 17 No raster Standby Check No power voltage check : Replace D_board (Go to No power) D_board P1401 FAIL PASS 5th 6V PASS Measure Check No power Standby voltage : Replace A_board (Go to No power) A_board P804 7th 6V PASS FAIL PASS Measure...
  • Page 18 No sound Measure Check Sound supply : A_power board trans output: Replace power board A_board P804 #1 18V 18V at power_board FAIL FAIL CN803 #1 PASS Check If A_board 18V is short-circuited. Replace A_board Resistance btween A_board PASS P821 Pin No.2 and 3 infnity? Check output to the Speaker :...

  • Page 19: Block Diagram

    BLOCK DIAGRAM - 19 -...
  • Page 20 BLOCK DIAGRAM DESCRIPTION In this system there are 2 tuners - ATSC/NTSC tuner(TDVS-H701P) and NTSC-only tuner.(TAFM-H103P) So it is impossible to have a digital (main)/digital (sub) PIP. CXA2181Q is the AV switch for the component signals and CXA2069Q is the AV switch for the composite signals. The audio signals which separated by CXA2069 are sent to MSP4440.

  • Page 21: Wiring Diagram

    - 21 -...

  • Page 22: Exploded View

    - 22 -...

  • Page 23: Exploded View Parts List

    CABINET ASSEMBLY, 32LX1D-UA BRAND 3090TKE026 SET 3091TKE034B CABINET ASSEMBLY, 32LX1D-UA BRAND 3090TKE026 CSKD 6304FLP290A LCD(LIQUID CRYSTAL DISPLAY), LC320W01-A6K6 LG PHILPS TFT COLOR WXGA AIODC or 6304FLP181A LCD(LIQUID CRYSTAL DISPLAY), LC320W01-A6K3 LG PHILPS TFT COLOR AI ODC 3809TKE030A BACK COVER ASSEMBLY, 32LX1D 3808TKE025 SET...

  • Page 24: 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 25 DATE: 2005. 04. 20. DATE: 2005. 04. 20. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION DIODEs C215 0CC220CK41A 22PF 1608 50V 5% R/TP NP0 C216 0CC220CK41A 22PF 1608 50V 5% R/TP NP0 D201 0DRSE00038A SDC15 TVS DIODE ARRAY SEMTEC C662...
  • Page 26 DATE: 2005. 04. 20. DATE: 2005. 04. 20. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION 6210TCE001G HH-1M3216-501 CERATEC 3216MM R102 0RH1000D622 100 1/10W 5 D.R/TP 6210TCE001G HH-1M3216-501 CERATEC 3216MM R109 0RH1000D622 100 1/10W 5 D.R/TP 6210TCE001G HH-1M3216-501 CERATEC 3216MM...
  • Page 27 DATE: 2005. 04. 20. DATE: 2005. 04. 20. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R652 0RH1000D622 100 1/10W 5 D.R/TP R112 0RJ4701D677 4.7K OHM 1/10 W 5% 1608 R/TP R824 0RH1502D622 15K 1/10W 5 D.R/TP R113...
  • Page 28 0CH3474H946 "0.47UF 25V 80%,-20% F(Y5V) 2" TU401 6700NF0019B TAFM-H103P LGIT NTSC FS PHON C1032 0CH3474H946 "0.47UF 25V 80%,-20% F(Y5V) 2" TU402 6634D00010B TASA-H301P LG INNOTEK 75 OHM C1035 0CH3474H946 "0.47UF 25V 80%,-20% F(Y5V) 2" 6612J00042G "UCT-EX-063 UGCOM S/T,17MM,NT" C1038 0CH3474H946 "0.47UF 25V 80%,-20% F(Y5V) 2"...
  • Page 29 DATE: 2005. 04. 20. DATE: 2005. 04. 20. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C1114 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP C124 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP C1115 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP C125...
  • Page 30 DATE: 2005. 04. 20. DATE: 2005. 04. 20. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C1610 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP C219 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP C1611 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP C220...
  • Page 31 DATE: 2005. 04. 20. DATE: 2005. 04. 20. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C406 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP C473 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP C407 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP C474...
  • Page 32 DATE: 2005. 04. 20. DATE: 2005. 04. 20. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C628 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP C746 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP C629 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP C747...
  • Page 33 DATE: 2005. 04. 20. DATE: 2005. 04. 20. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C931 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP C1709 0CK104CK56A 0.1UF 1608 50V 10% R/TP X7R C932 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP C1730...
  • Page 34 DATE: 2005. 04. 20. DATE: 2005. 04. 20. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C830 0CK474CH94A "0.47UF 1608 25V 80%,-20% R/T" C102 0CE476SF6DC 47UF MVG 16V 20% SMD R/TP C831 0CK474CH94A "0.47UF 1608 25V 80%,-20% R/T"...
  • Page 35 IC401 0ICTMLG009C LGDT1102C HD2.3 LG IC SBGA-4 C701 0CE476SF6DC 47UF MVG 16V 20% SMD R/TP IC504 0ICTMLG013B LGDT1901B LG IC SSOP 24P TRA C704 0CE476SF6DC 47UF MVG 16V 20% SMD R/TP IC902 0ICTMLG018B LGDP4411 IEP2 LG IC 176P TQF C705...
  • Page 36 DATE: 2005. 04. 20. DATE: 2005. 04. 20. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION IC605 0IRH033200A BA033FP-E2 MOLD-3 TP REGULAT L709 6210TCE001G HH-1M3216-501 CERATEC 3216MM IC703 0IRH033200A BA033FP-E2 MOLD-3 TP REGULAT L710 6210TCE001G HH-1M3216-501 CERATEC 3216MM IC1000...
  • Page 37 DATE: 2005. 04. 20. DATE: 2005. 04. 20. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION Q803 0TR387500AA CHIP 2SC3875S(ALY) BK KEC - R1113 0RH4701D622 4.7K 1/10W 5 D.R/TP Q804 0TR387500AA CHIP 2SC3875S(ALY) BK KEC - R1114 0RH4701D622 4.7K 1/10W 5 D.R/TP...
  • Page 38 DATE: 2005. 04. 20. DATE: 2005. 04. 20. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R210 0RH4701D622 4.7K 1/10W 5 D.R/TP R772 0RH3600D622 CHIP 360-J 1/10 W R212 0RH4701D622 4.7K 1/10W 5 D.R/TP R775 0RH1000D622 100 1/10W 5 D.R/TP R213...
  • Page 39 DATE: 2005. 04. 20. DATE: 2005. 04. 20. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION AR1104 0RHZTCZ001D RCA SMART 22OHM 1/16 W 5% 32 R1047 0RH1001D622 1K OHM 1 / 10 W 2012 5.00% D AR1105 0RHZTCZ001D RCA SMART 22OHM 1/16 W 5% 32 R1050 0RH1001D622 1K OHM 1 / 10 W 2012 5.00% D...
  • Page 40 DATE: 2005. 04. 20. DATE: 2005. 04. 20. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R3118 0RH1001D622 1K OHM 1 / 10 W 2012 5.00% D R717 0RH0222D622 22 OHM 1 / 10 W 2012 5.00% D R319 0RH0000D622 0 OHM 1 / 10 W 2012 5.00% D R767...
  • Page 41 DATE: 2005. 04. 20. DATE: 2005. 04. 20. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R1061 0RJ4702D677 47000 OHM 1/10 W 5% 1608 R/T R1190 0RJ1001D677 1K OHM 1/10 W 5% 1608 R/TP R1062 0RJ1001D677 1K OHM 1/10 W 5% 1608 R/TP...
  • Page 42 DATE: 2005. 04. 20. DATE: 2005. 04. 20. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R156 0RJ0222D677 22 OHM 1/10 W 5% 1608 R/TP R283 0RJ0222D677 22 OHM 1/10 W 5% 1608 R/TP R1700 0RJ1500D677 150 OHM 1/10 W 5% 1608 R/TP...
  • Page 43 DATE: 2005. 04. 20. DATE: 2005. 04. 20. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R527 0RJ0272D677 27 OHM 1/10 W 5% 1608 R/TP R740 0RJ2202D677 22K OHM 1/10 W 5% 1608 R/TP R529 0RJ0272D677 27 OHM 1/10 W 5% 1608 R/TP...
  • Page 44 C2010 0CE107SF6DC 100UF MVG 16V 20% SMD R/TP C2011 0CK104CK56A 0.1UF 1608 50V 10% R/TP X7R SW1101 140-313B TACT 2LEAD 160G(TA) LG C&D N C2012 0CE476VF6DC 47UF MV 16V 20% R/TP(SMD) SM SW1102 140-313B TACT 2LEAD 160G(TA) LG C&D N...
  • Page 45 DATE: 2005. 04. 20. DATE: 2005. 04. 20. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION IC2004 0IMCRFA004A KA2904DTF FAIRCHILD 8SOP R/T R3123 0RH0000D622 0 OHM 1 / 10 W 2012 5.00% D IC2006 0IPRP00538A FSA1156P6X-NL FAIRCHILD 6P/M...
  • Page 46 DATE: 2005. 04. 20. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R2128 0RH2200D622 220 1/10W 5 D.R/TP R2154 0RH0472D622 47 1/10W 5 D.R/TP R2155 0RH0472D622 47 1/10W 5 D.R/TP - 46 -...
  • Page 51 Apr, 2005 P/NO : 3828TSL111F Printed in Korea...

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