Question about LG 42PX5D 42 in. Plasma HDTV

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Sound but no image on my LG Plasma TV

I've got sound, but no image on my LG Plasma TV. What can I do to get the picture back? My LG 42pc3d-ud TV has sound but no picture. What's the typucal problem that causes this and how do I fix it.

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  • pippysmom Oct 24, 2008

    We have the same problem, sound but picture goes in and out

  • ginalynnmar Nov 02, 2008

    I have the same problem...........

  • mike452 Nov 22, 2008

    sound no picture



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Have sound but no imagen

Posted on Sep 30, 2008


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Posted on Jan 02, 2017


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1 Answer

I have a LG 42PC3D-UD Plasma TV That had no picture but had sound I had 6 blowed capacitors I changed out the main board and the T-Con board still don't have a picture HELP me please

hello, you have blown buffer board, on left hand looking from the back there's either 1 long thin board or 2 joined together, the black ic chips, some have metal heatsink over the top if they haven't look for little white dots, if they are present the buffer is no good, you may also need to change the ysus board as well, thanks


Feb 16, 2017 | LG Televison & Video

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What part/board should I replace.

-no picture caused by the Y-Sus deflection circuit
-you will need 1ea. Y-Sus Main
-1ea. Y-Driver upper
-1ea. Y-Driver lower
It is best to change these as a set
Part numbers are dependant on the tvs Product Code which on the back of the unit.

May 26, 2015 | LG Televison & Video

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Why do I have sound but no image on my LG 42pc3d-ud Plasma TV?

This is the sad story of many a so called smart TVs. I have repaired several of Samsung smart TVs. It is the back light in the panel which fails and company guys advise you for a panel replacement. Once you can see LG symbol means the Tcon is working. It is not the picture which is disappearing, it is the failed backlight which is not there and so you can not see anything. Repairing panel is a tricky job and you need a certain amount of expertise for this. Otherwise you may damage it beyond repairs.

May 01, 2015 | LG Televison & Video

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Why is the picture on my LG TV so dim?

Sounds like the back light panel is going bad.

May 01, 2015 | LG Televison & Video

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I have a LG 42pc3d-ud i can get green (power light) but know picture on tv (like power is off and have humming sound comming from back

From your description it sounds like your TV it's actually on you just can't see a picture. That is usually caused by your Zustain boards. The zustain boards are located on the left and teh right side of the TV. You can check the fuses to see if one of them is blown or you can leave it on and see if one of them does not heat up. You would have to replace the board. You can find part at

Jun 06, 2011 | LG 42PC3D 42 in. Plasma Television

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LG 42PC3D-UD plasma tv takes 22 minutes to turn on

the more i think about it, replace your power supply first. they have been known to cause this problem you are having

Feb 27, 2009 | LG 42PC3D 42 in. Plasma Television

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I have sound but no pic

replace display board.
if unit is under warenty
LG is very good at sending out replacment boards.

Jan 15, 2009 | LG 42PC3D 42 in. Plasma Television

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