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LG Flatron 27EA63V Service Manual
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LG Flatron 27EA63V Service Manual

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See also: Owner's Manual
COLOR MONITOR
SERVICE MANUAL
CHASSIS NO. : LM13E
MODEL:
(
) **Same model for Service
CAUTION
BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
Website:http://biz.LGservice.com
E-mail:http://www.LGEservice.com/techsup.html
(27EA63V-*B)
27EA63V
Internal Use Only

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Summary of Contents for LG Flatron 27EA63V

  • Page 1 Internal Use Only Website:http://biz.LGservice.com E-mail:http://www.LGEservice.com/techsup.html COLOR MONITOR SERVICE MANUAL CHASSIS NO. : LM13E (27EA63V-*B) MODEL: 27EA63V ) **Same model for Service CAUTION BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

  • Page 2: Table Of Contents

    Net. Weight : 7.2 kg (15.87 lbs) Gross Weight HDMI: Horizontal : 30 ~ 83kHz Vertical : 56 ~ 61Hz Copyright 2010 LG Electronics. Inc. All right reserved. - 2 - LGE Internal Use Only Only for training and service purposes...

  • Page 3: Precautions

    CAUTION Please use only a plastic screwdriver to protect yourself from shock hazard during service operation. Copyright - 3 - 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 4 8. Always connect the test receiver ground lead to the receiver chassis ground before connecting the test receiver positive lead. Always remove the test receiver ground lead last. Copyright 2010 LG Electronics. Inc. All right reserved. - 4 - LGE Internal Use Only Only for training and service purposes...
  • Page 5 IC. circuit board to prevent excessive component temperatures. Copyright 2010 LG Electronics. Inc. All right reserved. - 5 - LGE Internal Use Only Only for training and service purposes...
  • Page 6 Solder the overlapped area and clip off any excess jumper wire. Copyright 2010 LG Electronics. Inc. All right reserved. - 6 - LGE Internal Use Only Only for training and service purposes...

  • Page 7: Timing Chart

    1680 x 146.25 1050 V(Lines) 59.954 1089 1050 H(Pixels) 67.50 2200 1920 1920 x 148.50 1080 V(Lines) 1125 1080 Copyright 2010 LG Electronics. Inc. All right reserved. - 7 - LGE Internal Use Only Only for training and service purposes...

  • Page 8: Block Diagram

    BLOCK DIAGRAM Copyright 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 9 - Only for training and service purposes...

  • Page 9: Description Of Block Diagram

    The Micom distinguishes source signal by polarity and frequency of the H/V sync and set resistor value to IC. The value that adjusted by user that are auto set, H/V position, clock, and phase is controlled by OSD. Copyright 2010 LG Electronics. Inc. All right reserved. - 10 - LGE Internal Use Only...

  • Page 10: Adjustment

    Click “ Write” button c) Remove all default number d) Add 300-3FF e) Click Start button. f) Click Exit button. Copyright 2010 LG Electronics. Inc. All right reserved. - 11 - LGE Internal Use Only Only for training and service purposes...
  • Page 11 (110V/220V) 74LS06 Power LED 4.7K 74LS06 ST Switch V-Sync On/Off Switch (Switch must be ON.) Figure 1. Cable Connection Copyright 2010 LG Electronics. Inc. All right reserved. - 12 - LGE Internal Use Only Only for training and service purposes...

  • Page 12: Troubleshooting Guide

    "IS IC 103 PIN1 (3.3V), PIN3(1.2V) PIN3 (1.2V)?" CHECK CRYSTAL(X100) Check IC100 PIN 45,46 PULSE CHECK IC100 Waveforms IC100#45,46 JK100#1 IC102#3 IC103#1 Copyright 2010 LG Electronics. Inc. All right reserved. - 1 3 - LGE Internal Use Only Only for training and service purposes...
  • Page 13 CHECK CONNECTION LINE CHECK IC100 PIN 39,40 PULSE FROM D-SUB TO IC100 TROUBLE IN CABLE OR LCD MODULE Copyright 2010 LG Electronics. Inc. All right reserved. - 1 4 - LGE Internal Use Only Only for training and service purposes...
  • Page 14 CHECK IC100 PIN 39 CHECK H/V SYNC LINE HSYNC, PIN40 VSYNC TROUBLE IN IC100 Waveforms 1 H-SYNC 2 V-SYNC Copyright 2010 LG Electronics. Inc. All right reserved. - 1 5 - LGE Internal Use Only Only for training and service purposes...

  • Page 15: Wiring Diagram

    WIRING DIAGRAM EAD62122554 EAD62186008 EAD38438705 Copyright 2010 LG Electronics. Inc. All right reserved. - 16 - LGE Internal Use Only Only for training and service purposes...
  • Page 17 PDF created with pdfFactory Pro trial version www.pdffactory.com...
  • Page 18 PDF created with pdfFactory Pro trial version www.pdffactory.com...
  • Page 19 OCTOBER 2012 P/NO : Printed in China MFL59082084...

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Flatron 27ea63v-b