Related Manuals for LG 23LC1RB-MB
Summary of Contents for LG 23LC1RB-MB
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Page 1: Service Manual
LCD TV SERVICE MANUAL CHASSIS : ML-041G MODEL : 23LC1RB-MB CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. -
Page 2: Table Of Contents
CONTENTS CONTENTS ....................2 PRODUCT SAFETY ..................3 SPECIFICATION ..................7 ADJUSTMENT INSTRUCTION..............11 SVC REMOCON ..................12 TROUBLE SHOOTING ................13 BLOCK DIAGRAM...................18 WIRING DIAGRAM ..................20 EXPLODED VIEW .................. 21 REPLACEMENT PARTS LIST ............... 23 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 Shock, Fire, or other Hazards. -
Page 4: Servicing Precautions
SERVICING PRECAUTIONS CAUTION: Before servicing receivers covered by this service prevent potential shock reasons prior to applying power to the manual and its supplements and addenda, read and follow the unit under test. SAFETY PRECAUTIONS on page 3 of this publication. 2. - Page 5 IC Remove/Replacement 3. Solder the connections. Some chassis circuit boards have slotted holes (oblong) through CAUTION: Maintain original spacing between the replaced which the IC leads are inserted and then bent flat against the component and adjacent components and the circuit board to prevent excessive component temperatures.
- Page 6 SPECIFICATION NOTE : Specifications and others are subject to change without notice for improvement. 1. Application range This specification is applied to ML-041G chassis. 2. Requirement for Test Testing for standard of each part must be followed in below condition. (1) Temperature: 25°C ±...
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Page 7: Specification
4. Reference table - Function Item Specification Remark Tele text TOP, FLOF,LIST 10 page Pal(option) REMOCON NEC Code PAL/ NTSC AV Input Rear & Side : MB/TB Rear : ZB S-Video Input Rear Component input Rear : NTSC, Side : PAL PERI TV Connector Full SCART : 1 Rear (option : EU) - Page 8 6. Outgoing Condition Item Condition Remark Power Volume Level Main Picture Input Main Last Channel Mute 16:9 Channel Auto Program(EZ Scan) None Manual prog. None Favorite ch. None Picture APC(EZ Video) Clear Dynamic Contrast Brightness Color Sharpness Tint Sound DASP(EZ Audio) Flat Balance Time...
- Page 9 7. Engineering Specification ITEM Specification Remark ENERGE POWER CONSUMPTION LED COLOR ≤ 120W Normal Blue ≤ 1W Stand By, Amber ≤ 30W DPM mode (PC H/V-sync on/off) Blue ITEM Specification Remark D-SUB 1 : RED 2 : Green Pin configuration 3 : Blue 4 : ID2 (GND) 5 : S.T (GND)
- Page 10 9. Component Video Input(Y, P Resolution H-freq(kHz) V-freq.(kHz) Pixel clock(MHz) Remarks 720x480 15.73 SDTV, DVD 480i ZB, TB, MB 720x480 15.63 59.94 SDTV, DVD 480i ZB, TB, MB 720x480 31.47 59.94 EDTV 480p TB, MB 720x576 15.625 50.00 SDTV, DVD 576i ZB, TB 720x576 31.25...
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Page 11: Adjustment Instruction
ADJUSTMENT INSTRUCTION 1. Application Object Item Unit Remark This document is applied to 23" Wide LCD TV which is White Balance, 0.272 0.287 0.302 MB/TB ±0.015(95% white manufactured in Monitor Factory or is produced on the basis X axis Video or comp1 mode) of this data. -
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: Troubleshooting
TROUBLESHOOTING No power :[A]Process (LED indicator off) Check short of main B/D Check 15V or 5V or Change Lips Fail of Lips Pass Pass Check Output of Change IC604, IC607 IC604, IC607 Fail Pass Change LED Assy Check LED Assy Fail Pass Check P701 Connector... - Page 14 No Raster :[B]Process Check LED Status Repeat A PROCESS on display unit Fail Check Change L300, L301, L302 L300, L301, L302 Fail Pass Check the input/ Change IC300 Output of IC300 Fail Pass Check inverter Change inverter Connector or inverter connector or inverter Fail Pass...
- Page 15 No Raster on Component signal Repeat [A] Process Pass Check the signal of Check JA700 or R708, 709, 710 Check the input source. Fail Pass Re-soldering or Check the input/output Change the defect part Fail of IC200 Re-soldering or Check the input/ Change the defect part, output of IC100 Fail...
- Page 16 No Raster on AV Signal No Raster on TV(RF) signal (Video, Side AV, S-Video) Check 5V, 33V of TU1000 Repeat Check the output of Re-soldering or [A] Process TU1000 Fail Fail Change the defect part Pass Change Check the signal of L103, L710, L713, L714 L103, L710, L713, L714 or Check input source...
- Page 17 No Sound Check the Change source input input source Fail Pass Check the input/output Re-soldering of IC801 Fail Pass Re-soldering or Check the input/output Change the defect part of IC100 Fail Check X100 Pass Re-soldering or Check the input/output Change the defect part of IC400 Fail Pass...
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Page 18: Block Diagram
BLOCK DIAGRAM - 18 -... - Page 19 BLOCK DIAGRAM DESCRIPTION 1. Video Controller Unit & Display Data Conversion Unit The video controller unit receives the video signals inputted through the tuner, AV port (AV1, AV2, S-VIDEO, COMPONENT), and converts them into an analog RGB signal through the microcomputer (VCTI) combined with the video decoder that integrates various functions in one chip.
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Page 20: Wiring Diagram
WIRING DIAGRAM 6631900047A-14P 6631T20037Q-3P 6631900123A-14P 6631T11016Q-30P 6631900050A-10P 6631T20037Q-3P 6631T20029S-5P 6631T25019J-4P - 20 -... -
Page 21: Exploded View
EXPLODED VIEW - 21 -... -
Page 22: Exploded View Parts List
Cover Assembly, 23LC1 BRAND 3090TKL161A HIPS 405AF BLACK SPRAY C/SKD 6304FLP350A LCD,Panel-TFT, LC230WX3-SLA1 23.0INCH 1365X768 450CD COLOR 72% - 3809900116F Cover Assembly, 23LC1RB-MB 2PHONE USA 405AF C/SKD 3043900010D Base Assembly, 23LC1R . HINGE ASSY C/SKD 68719ST799C PCB Assembly,Sub, SUB T.T CL81 LC1R ALEULFX LED+IR 68719STA38A PCB Assembly,Sub, SUB T.T ML041E 23LC1R CONTROL TOTAL ASSY... -
Page 23: 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 24 DATE: 2006. 04. 26. DATE: 2006. 04. 26. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C310 0CK104CK56A 0603B104K500CT 100nF 10% 50 C423 0CK224DH56A 0805B224K250CT 220nF 10% 25 C311 0CK104CK56A 0603B104K500CT 100nF 10% 50 C424 0CK105DK94A...
- Page 25 DATE: 2006. 04. 26. DATE: 2006. 04. 26. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION TRANSISTOR IC801 0ISA722200C "LA7222-(E),LF 8TO13V - - 35" Q603 0TF492509AA SI4925DY P-CHANNEL -30V +-2 IC200 0IRH765700B BA7657F 4.5TO5.5V - - 550MW...
- Page 26 DATE: 2006. 04. 26. DATE: 2006. 04. 26. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R151 0RJ1000D677 MCR03EZPJ101 100OHM 5% 1/10 R352 0RJ0000D677 MCR03EZPJ000 0OHM 5% 1/10W R152 0RJ1000D677 MCR03EZPJ101 100OHM 5% 1/10 R401 0RJ1001D677...
- Page 27 DATE: 2006. 04. 26. DATE: 2006. 04. 26. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R621 0RJ4701D677 MCR03EZPJ472 4.7KOHM 5% 1/1 R551 0RJ1001D677 MCR03EZPJ102 1KOHM 5% 1/10W R700 0RJ1002D677 MCR03EZPJ103 10KOHM 5% 1/10 R552 0RJ3001D677...
- Page 30 Apr., 2006 P/NO : 38289S0004 Printed in Korea...