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Posted on Dec 14, 2007

42 inch LG Plasma TV - Lost picture

Hi , was watching my 42 inch LG Plasma TV last night, when I heard a click noise and the picture went immediately but the sound remained fine, I could switch channels but no picture, would you have any idea what the problem is. thanks

 42 inch LG Plasma TV - Lost picture  but sound still can be heard! .

  • 19 more comments 
  • Sue in ABQ Dec 15, 2007

    We were watching the ESA 42 plasma on one night - fine - next am - no picture - just big wide lines. Unable to get anything in terms of a picture. Only 2.5 years old?

  • banny Dec 18, 2007

    no power to my screen now bush 42 inch just a year old nothing will come on

  • jorgeAAikman Dec 20, 2007

    Hi, was watching the 42" LG Plasma, when the picture went and a horizontal line appear in the screen for a short moment and went, the screen are with no pictire, the sound is normal and I could switch channels but no picture in the screen. Thanks

  • Anonymous Dec 31, 2007

    No picture, still receive sound. about to replace small fuses, let you know if this works

  • Anonymous Mar 09, 2008

    50 inch plasma..heard loud 'pop' picture went out but still have sound???any ideas what happened and what to do?

  • dickturpin66 Dec 14, 2008

    hi i have a 42" lg plasma,the screen has been going light and dark every now and again.then suddenly i heard a pop and the picture went.i'm still getting sound and i can turn the channels over.

  • Anonymous Jan 13, 2009

    i the

  • Anonymous Mar 12, 2014

    operates as normal. has sound, can change channels but there is no picture display

  • Anonymous Mar 14, 2014

    42 in. Hitachi plasma has no picture & no sound. Will not display input settings.

  • Anonymous Mar 14, 2014

    I have a 55 inch i have no sound the tv won't turn off the side button don't. Work either .....but the picture is good n my optimum channels work fine should I just unplug it ? If not how do I reset it

  • Anonymous Mar 17, 2014

    delay in picture showing on lg- 42lc7d-ub plasma tv

  • Anonymous Mar 18, 2014

    tyring to retune LG Plasma tv

  • Anonymous Mar 22, 2014

    Picture good on TV, but no sounh only static sound when TV on

  • Anonymous Mar 23, 2014

    TV has good sound but no picture, no images black screen

  • Anonymous Mar 24, 2014

    42" HD Ready. 6 years old. 1st problem and hopefully the last

  • Anonymous Mar 25, 2014

    DVD plays in black and white on LG 42 inch plazma tv

  • Anonymous Mar 25, 2014

    Has sound but know picture just replaced the centre panel on the back

  • Anonymous Mar 27, 2014

    My LG50PY3DF-UJ Plasma turns on ok but then switches itself off after 3 seconds, how can I fix it?

  • Anonymous Mar 27, 2014

    screen went blank no picture at all

  • Anonymous Mar 31, 2014

    i canot remember the number of the input pastword for my 42 inch l g tv can you help please

  • Anonymous Apr 01, 2014

    Help resetting code to tv

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1 Answer

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  • Contributor 15 Answers
  • Posted on Dec 15, 2007
Anonymous
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Ysus pcb that supplies voltage to the panel is faulty

3 Related Answers

Anonymous

  • 4 Answers
  • Posted on Feb 17, 2010

SOURCE: Hi , was watching my 42 inch LG Plasma TV last

Sounds like a capacitor blew on one of the boards. Can you detect any burnt electronic smell? If the Cap blew on the Power Supply, you can either replace the Capacitor or replace the power supply board. The boards are between $79 and $149 depending where you get it. Some of the other boards, Y or Z Sus, are between $179 and $300. If you can't do it yourself, and with many 42" models selling for $649 to $899, it might be too expensive to fix.

You can find the boards on ebay or shopjimmy, youtube has videos showing how to replace them. Hope that helps.

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Anonymous

  • 92 Answers
  • Posted on Oct 31, 2007

SOURCE: 42 inch LG Plasma TV - Lost picture

sounds like it may be a software upgrade

A

Anonymous

  • Posted on Mar 09, 2008

SOURCE: 42 inch LG Plasma TV - Lost picture

try connecting tv to cable direct also try unplugging both converter and tv for wile like 5 mins plug both back in see if tv and converter sync

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Related Questions:

0helpful
2answers

Hi , was watching my 42 inch VIORE Plasma TV last night, when I heard a click noise and the picture went immediately but the sound remained fine, I could switch channels but no picture, would you have any...

Check high voltage circuit. This is near where the 120 volt cord is plugged in and a high voltage transformer, where there should be capacitor (or two). Check the voltage - should be 390 to 400 volts. If not less than 390, near to replace the capacitor.
0helpful
2answers

42 inch LG Plasma TV Lost Picture

Hi it sounds like it has had an elctric fault like a resistor failing.
The click you heard would be a internal switch that cuts off the elctric supply to the screen to stop furthe damage hapening.
It could even be something simple like a bad solder and in that case will need locating and resoldering.
How old is the telly and how often is it used.
When you switch it off leave it off for about an hour then try again if you have allready done this then it probably is a blown resistor are you sure nothing has been pressed on controll have you tried seeing if you can acess the menu screen via the remote and see if that comes up on the screen let me know ok
0helpful
1answer

Lost picture on plasma tv

Check the power board for any domed capacitors. Replace them. If this does not fix Replace the power board. You can check the voltages from the power board. they are labeled. VS and VA voltages are the panel voltages.
0helpful
1answer

Hi , was watching my 42 inch LG Plasma TV last night, when I heard a click noise and the picture went immediately but the sound remained fine, I could switch channels but no picture, would you have any...

Sounds like a capacitor blew on one of the boards. Can you detect any burnt electronic smell? If the Cap blew on the Power Supply, you can either replace the Capacitor or replace the power supply board. The boards are between $79 and $149 depending where you get it. Some of the other boards, Y or Z Sus, are between $179 and $300. If you can't do it yourself, and with many 42" models selling for $649 to $899, it might be too expensive to fix.

You can find the boards on ebay or shopjimmy, youtube has videos showing how to replace them. Hope that helps.
2helpful
2answers

42 inch LG Plasma TV - Lost picture

This is almost certainly the device that sends electricity to the the plasma in the panel after failing. Bring to your local repair shop and expect to pay 300-400 parts and 100-200 labour.

Cheers,
Stephen
1helpful
2answers

42 inch LG Plasma TV - Lost picture

Most likely what happened is one of the capacitors went bad. When a capacitors goes bad it produces a popping sound. This could be an easy and cheap fix if you find the bad capacitor or capacitors. The bad capacitor will have a bulging top most likely on the power board but could be anywhere.
2helpful
1answer

42 inch LG Plasma TV - Lost picture

Hi , I recently had the same problem which I was determined to fix . So I did a few weeks of research to find that it was the Y SUS board which burns out. I'm sure you realized that the TV gets hot. Personally I think this is why. circuit boards don't like heat and I've learned that the cooling fans are a joke. I replaced the board and got my picture back. I proved the fan theory because after the screen started to act up. I placed a cooling fan near the vent holes on top and the problem cleared right up,It also helps if you lower the brightness which helps out on the heat situation.I will soon be adding a fan with a temp. sensor. This shoud help if your screen has lines when you initially turn the cool TV on.then I have Some other costless solutions. Hope this helped these are great TV's and like our cars we maintain them not throw them away..................................Mr Wiseman
367helpful
34answers

42 inch LG Plasma TV - Lost picture

Our LG 50" plasma tv screen went black after a popping noise but still had sound, after great diliberations decided to take the back off and have a peek!
We unplugged the tv and tested the fuses (there were three we could see) one had blown, the one on the left as you look at the back of the tv it also has one above it. We wrote the code/seriel number down and took the fuse to the electrical wholesalers Maplin and bought a pack of 10 fuses for £1.29 replaced the fuse in the tv and everything now fine!!!!!!
Hope this might be of use to anyone whose lost the picture after a loud popping/snacking noise but still has sound.
1helpful
1answer

42 inch LG Plasma TV - Lost picture

sounds like it may be a software upgrade
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