LG 42LC2RR 42 in. HD-Ready LCD TV Logo
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David Ahitov Posted on Jan 17, 2014

LG LCD 42" sound but no picture

Hi guys, my LG 42" turns on with sound but no picture When i turn it on i can see the back light is working, and i can hear sound but no picture. Sometimes there is picture for a very short period (like 0.1 sec) but then it turns black again. Also there is the power light (red when off white when on like it should be) but when i click something like volume up or input it should blink for a sec (indicates the the tv reads the click) but now it just turns off (not the tv, the power light). I have done some research and opened the tv to look for some bad capacitors over the power board but the seem to look fine... What can cause this and is it repairable?? I would really appreciate any sort of help :) Model: LG 42LC2R-ZH Main Board: 68709M9004 (PP62ABC/LP62ABC) Power Board: 6709900017A (YP4201) Rev 1.3

1 Answer

Roger-Cyndy Wilber

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  • Posted on Jan 17, 2014
 Roger-Cyndy Wilber
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From this web site it says:
http://www.ehow.com/about_5379235_lg-television-problems.html
Powering Off

  • Many LG LCD television owners report having a problem with their televisions where the screen powers on, but then lasts only a few seconds or a few minutes before powering itself off again. The problem usually occurs with brand new televisions, and in this case is inside the television itself. If your television is powering off unexpectedly, contact LG so it can be serviced.


Read more: http://www.ehow.com/about_5379235_lg-television-problems.html#ixzz2qeK8T3SU

5 Related Answers

Anonymous

  • 133 Answers
  • Posted on Jan 10, 2009

SOURCE: LG 42 plasma power problem

needs power supply Part number 6709900023A
it is a 171 dollar part, you should be able to order through LG,

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Anonymous

  • 227 Answers
  • Posted on Jun 24, 2009

SOURCE: Turn the TV on, clicks back off - no sound, no picture

hello, your power supply has to be repaired and you are looking at $275.00 for this job
good luck

Anonymous

  • 5 Answers
  • Posted on Aug 31, 2009

SOURCE: LG 47LC7DF Green Light Blinks 16 Times - No Picture or Sound

The lights indicate what the issue is. Kind of like your check engine light in your car tells you something is wrong with the engine.

John W

  • 11 Answers
  • Posted on Dec 19, 2009

SOURCE: I have a 42

There are 4 capacitors on the power supply board that need to be replaced. They are green in color. There is also another green capacitor made by the same company in that area that also might need to be replaced also.

Paul

  • 381 Answers
  • Posted on Mar 26, 2010

SOURCE: LG 42 Plasma try's to turn on but just goes back into "stanby" ?

Check to see if you get Va and Vs voltages from the power supply. There should be some wires running to the y-sus. A couple of those wires will be labeled va and vs. Are they present? There will be a sticker stuck to the panel somewhere telling you what they should be.

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