LG MW-30LZ10 Service Manual

LG MW-30LZ10 Manual

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  • LG MW-30LZ10 | Service Manual - Page 1
    P/NO : 3828VD0120B Aug., 2002 Printed in Korea website:http://biz.LGservice.com e-mail:http://www.LGEservice.com/techsup.html LCD MONITOR SERVICE MANUAL CHASSIS : MF-02HA MODEL : MW-30LZ10 CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
  • LG MW-30LZ10 | Service Manual - Page 2
    CONTENTS Contents 2 Safety Precautions 3 Adjustment Instruction 4 Troubleshooting 6 Printed Circuit Board 7 Block Diagram 11 Exploded View 16 Exploded View Parts List 17 Replacement Parts List 18 SVC. Sheet -2-
  • LG MW-30LZ10 | Service Manual - Page 3
    in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. General Guidance An lsolation Transformer should always be used during the servicing of a receiver whose chassis is not isolated from the AC power line. Use
  • LG MW-30LZ10 | Service Manual - Page 4
    00 BD (4) Refer to Service Manual related to EDID communication. 3. Adjustment Items 3-1. Whole Assembly Adjustment (1) White Balance Adjustment (2) SUB-BRIGHT Adjustment : Sub-Bright adjustment in LCD panel is not necessary. Do not adjust sub-bright if there is no specific designation. (3) RGB CUT
  • LG MW-30LZ10 | Service Manual - Page 5
    Input LCD MONITOR Window MASTER repairing Manual adjustment is a temporary method when automatic adjustment is not correspondent. 1. AV W/B adjustment 1) Select WHITE PATTERN of HEAT RUN mode by pressing ADJ button on Remote Control for adjustment then operate HEAT RUN more than 15 minute 2) Supply
  • LG MW-30LZ10 | Service Manual - Page 6
    TROUBLESHOOTING Symptom 1. No power from all outputs Cause 1) Fuse open 2) Error of rectying circuit/EMI Filter 2. No power from +24V/+12V /+18V 1) Short of output terminal 2) Input error of parts 3) Error of U902 and peripheral circuits. Check Point 1) Check BD801, Q801, Q802, Q804 2) Check
  • LG MW-30LZ10 | Service Manual - Page 7
    MAIN(TOP) PRINTED CIRCUIT BOARD -7-
  • LG MW-30LZ10 | Service Manual - Page 8
    MAIN(BOTTOM) -8-
  • LG MW-30LZ10 | Service Manual - Page 9
    SIDE A/V(TOP) SIDE A/V(BOTTOM) -9-
  • LG MW-30LZ10 | Service Manual - Page 10
    CONTROL(TOP) CONTROL(BOTTOM) POWER(TOP) POWER(BOTTOM) - 10 -
  • LG MW-30LZ10 | Service Manual - Page 11
    1. VSC Board BLOCK DIAGRAM - 11 -
  • LG MW-30LZ10 | Service Manual - Page 12
    RS-232C (2) Video System Recognition (Multi-system ; Refer to Product Specification) : NTSC M, NTSC 4.43, PAL, PAL M, PAL N, in Product Specification in detail.) 2-2. Video Controls (1) RGB Video Controls : Automatic Clock & Phase Optimization) (2) AV Video Controls (AV1, AV2, S-Video, Component 1,
  • LG MW-30LZ10 | Service Manual - Page 13
    3. Power - 13 -
  • LG MW-30LZ10 | Service Manual - Page 14
    receiving Input of BLOCK 1 and supplies +5V for Stanby. Protection circuit is built in switching part(5, 10) to protect over electric- minimize power consumption, if the OFF signal is transmitted to PFC part(4), Main part(5) through the control circuit connected from Main board to Power board,
  • LG MW-30LZ10 | Service Manual - Page 15
    MEMO - 15 -
  • LG MW-30LZ10 | Service Manual - Page 16
    EXPLODED VIEW 943 400 520 580 501 540 530 420 531 551 550 410 112 300 570 - 16 -
  • LG MW-30LZ10 | Service Manual - Page 17
    A/V MF-02HA MW-30LZ10 AV BOARD HOLDER,AV CHASSIS ASSEMBLY,SMPS MF-02HA LCD30 SWITCH PCB ASSEMBLY,SUB SPK MF-02HA MW-30LZ10 SPK BOAR HOLDER,SPK JACK INVERTER ASSEMBLY,24VOLT 1100VOLT K.S. KLS300W1 PCB ASSEMBLY,SUB CONT MF-02HA MW-30LZ10 CONTROL BOARD ASSEMBLY,SMPS PFC MW-30LZ10 MF-02HA LCD SCREW,D4
  • LG MW-30LZ10 | Service Manual - Page 18
    ,SOT-223 TP 3. THC63LVDM83R THINE ELECTRONICS EZ1117CST-3.3 3P,SOT-223 TP 3. EZ1117CST-3.3 3P,SOT-223 TP 3. L4973D5.1 SGS-THOMSON 20P SOP LOCA. NO PART NO DESCRIPTION IC802 0IMCRSG003A L4973D5.1 SGS-THOMSON 20P SOP TRANSISTOR IC709 Q01 Q02 Q201 Q203 Q204 Q205 Q206 Q207 Q208 Q209 Q210 Q211 Q212
  • LG MW-30LZ10 | Service Manual - Page 19
    LOCA. NO PART NO DESCRIPTION D509 D510 D511 D512 D513 D514 D515 D516 Polyestor CE : Electrolytic RD : Carbon Film RS : Metal Oxide Film RN : Metal Film RF : Fusible LOCA. NO PART NO DESCRIPTION C286 C299 C300 C302 C304 C311 C312 C313 C314 C315 C316 C317 C323 C325 C501 C510 C523 C525 C527 C529
  • LG MW-30LZ10 | Service Manual - Page 20
    Carbon Film RS : Metal Oxide Film RN : Metal Film RF : Fusible LOCA. NO PART NO DESCRIPTION C685 C687 C689 C690 C691 C701 C703 C706 C755 C756 C758 C761 C762 C764 C766 JACK 6612J00010A JACK,RCA PPJ128A-1 A/V 2P MONO LOCA. NO PART NO DESCRIPTION P102 P103 P104 P501 P502 P507 380-363K
  • LG MW-30LZ10 | Service Manual - Page 21
    3828VA0338D MANUAL,OWNERS MF02HA MW-30LZ10 LG A2 6710V00092E REMOTE CONTROLLER,MF-02HA W/O TXT A3 6410VWH005B POWER CORD,SA16A RF : Fusible LOCA. NO PART NO A3 6410VBH003A A4 174-208D A5 6850V00001A A6 6851V00001F A7 6866VA9001A DESCRIPTION POWER CORD,MP5004 VOLEX CORD,A/V(3P,3.0M
  • LG MW-30LZ10 | Service Manual - Page 22
  • LG MW-30LZ10 | Service Manual - Page 23
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LCD
MONITOR
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CHASSIS : MF-02HA
MODEL : MW-30LZ10
Aug.,
2002
Printed in Korea
P/NO : 3828VD0120B