Instruction/ maintenance manual of the product E2042T-BN LG
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COLOR MONIT OR SER VICE MANUAL W ebsite:http://biz.LGservice.com E-mail:http://www .LGEservice.com/techsup.html CAUTION BEFORE SERVICING THE UNIT , READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
- 2 - CONTENTS SPECIFICA TIONS ................................................... 2 PRECAUTIONS ....................................................... 4 TIMING CHART ....................................................... 8 DISASSEMBL Y ............
- 3 - WARNING FOR THE SAFETY-RELATED COMPONENT. • There are some special components used in LCD monitor that are important for safety. These parts are marked on the schematic diagram and the replacement parts list.
- 4 - SER VICING PRECAUTIONS CAUTION: Before servicing receivers covered by this service manual and its supplements and addenda, read and follow the SAFETY PRECAUTIONS on page 3 of this publication.
- 5 - General Soldering Guidelines 1 . Use a grounded-tip, low-wattage soldering iron and appropriate tip size and shape that will maintain tip temperature within the range or 500 F to 600 F. 2. Use an appropriate gauge of RMA resin-core solder composed of 60 parts tin/40 parts lead.
- 6 - Circuit Board Foil Repair Excessive heat applied to the copper foil of any printed circuit board will weaken the adhesive that bonds the foil to the circuit board causing the foil to separate from or "lift-off" the board. The following guidelines and procedures should be followed whenever this condition is encountered.
TIMING CHART - 7 - Copyright Only for training and service purposes LGE Internal Use Only 2010 LG Electronics. Inc. All right reserved. A B C D E F Video Sync MODE CLASSIF ICA TION Polar ity DOT CLOCK [MHz] Frequency [kHz]/ [Hz] T ot al Period (E) Display (A) Front Porch (D) Sync.
# 1 # 4 # 2 # 3 1. Pull the front cover upward. 2. Then, let the all latches are separated. 3. Put the front face down. Disassemble back cover. DISASSEMBL Y -Set P lac e th e moni to r fa ce Do wn o n t h e cushio n or so ft clo th . Remov e th e stand body and atand base f rom t he produ ct.
- 9 - BLOCK DIAGRAM Copyright Only for training and service purposes LGE Internal Use Only 2010 LG Electronics. Inc. All right reserved. LED Panel 20’’Inch m a r g a i D k c o l B E2042T.
- 10 - DESCRIPTION OF BLOCK DIAGRAM Copyright Only for training and service purposes LGE Internal Use Only 2010 LG Electronics. Inc. All right reserved. 1. Video Controller Part. This part amplifies the level of video signal for the digital conversion and converts from the analog video signal to the digital video signal using a pixel clock.
- 11 - ADJUSTMENT Windows EDID V1.0 User Manual Operating System: MS Windows 98, 2000, XP Port Setup: Windows 98 => Doesn’t need setup Windows 2000, XP => Need to Port Setup. This program is available for LCD Monitor only. 1. Port Setup a) Copy “UserPort.
- 12 - 220 IBM Compatible PC PARALLEL PORT Power inlet (required) Power LED ST Switch Power Select Switch (110V/220V) Control Line Not used RS232C PARALLEL V-SYNC POWER ST VGS MONITOR E E V-Sync On/Off Switch (Switch must be ON.) F F A A B B C C 15 10 5 5 6 9 1 1 1 14 13 25 6 5V 5V 5V 4.
- 13 - TROUBLESHOOTING GUIDE 1. NO POWER NO POWER (POWER INDICATOR OFF) CHECK IC103 NO NO NO CHECK CRYSTAL(X 1 00) YES YES 1 2 1 3 1 4 Waveforms 1 2 3 4 Copyright Only for training and service purposes LGE Internal Use Only 2010 LG Electronics. Inc. All right reserved.
- 14 - 2 . NO RASTER (OSD IS NOT DISPLA YED) - MAIN NO NO CHECK CONNECTION LINE FROM D-SUB TO IC103 TROUBLE IN CABLE OR LCD MODULE YES NO RASTER (OSD IS NOT DISPLAYED) YES 1 Copyright Only for training and service purposes LGE Internal Use Only 2010 LG Electronics.
- 15 - 3 . TROUBLE IN DPM TROUBLE IN DPM TROUBLE IN IC103 CHECK PC PC IS GOING INTO DPM MODE NO CHECK H/V SYNC LINE NO YES YES 1 H-SYNC 2 V-SYNC Waveforms 1 2 Copyright Only for training and service purposes LGE Internal Use Only 2010 LG Electronics. Inc.
WIRING DIAGRAM - 16 - Copyright Only for training and service purposes LGE Internal Use Only 2010 LG Electronics. Inc. All right reserved. EAD38438703 6631900011S EAD 61426311 LGD:EAD61905269 MAIN BOA.
2010 300 500 510 520 530 400 900 200 540 410 or.
PD F c reated w i th pdf F a c tor y P ro tr i a l v er s i on www.pdffactory.com.
PD F c reated w i th pdf F a c tor y P ro tr i a l v er s i on www.pdffactory.com.
FEBRUARY.2012 P/NO : Printed in China MFL67122143.
An important point after buying a device LG E2042T-BN (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought LG E2042T-BN yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data LG E2042T-BN - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, LG E2042T-BN you will learn all the available features of the product, as well as information on its operation. The information that you get LG E2042T-BN will certainly help you make a decision on the purchase.
If you already are a holder of LG E2042T-BN, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime LG E2042T-BN.
However, one of the most important roles played by the user manual is to help in solving problems with LG E2042T-BN. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device LG E2042T-BN along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
