Question about LG 42PC3D 42 in. Plasma Television

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I have sound but no pic

Lg 42pc3dv-ud tv

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

Posted on Jan 15, 2009

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My TV has sound but no picture at all


It is likely your TV has an internal power supply problem

Mar 03, 2013 | LG 42PC3DV 42 in. Plasma EDTV

1 Answer

My LG plasma 42pc3DV-UD just turns off while we're watching it and then turns itself back on again. It does this sporadically, any body got the fix on this?


The tv power supply board have dying parts call the capacitors.These capacitors are dying and have leaking gases.These dying capacitors are alway bulges up on it tops or puffing up on it tops.The power supply board the board that the board,where the power a/c cord plug into it.U have tools like a soldering iron,desoldering pump or desoldering braids,solders?U can do basic soldering?U have basic understanding of electronic?Replaced these dying and leaking gases capacitors,that are bulging up on it tops or puffing up on it tops.This sporadic turn off and on will stop.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

Oct 20, 2010 | LG 42PC3DV 42 in. Plasma EDTV

1 Answer

Manual for tv LG 42pc3dv


http://www.retrevo.com/support/LG-42PC3DV-TVs-manual/id/375dj290/t/2/
There is the link to where you can download your manual.
Thank you,
Lee

Sep 05, 2010 | Flat Panel Televisions

1 Answer

LG 42PC3DV-UD turns off/on by itself. Is this a common problem? What part needs to be replaced?


Power board have dead capacitors,like puff up or burst open,these capacitors must replaced.Know how to solders?Or replaced the whole power refurbish power board.Tries Shopjimmy.com,Ebay.com.

Jan 19, 2010 | LG 42PC3DC 42 in. Plasma HDTV

1 Answer

WON'T TURN ON.


Powerboard damaged, if you could not see the Led light on stanby mode it means you have no power at all.

Go ahead and replace your powerboard and your TV will be Ok

May 28, 2009 | LG 42PC3DV 42 in. Plasma EDTV

1 Answer

TV TURNS IT SELF OFF AND ON I HAVE A LG 42'' MODEL 42PC3DV


You have a bad start relay in the power supply Replace it

May 20, 2009 | LG 42LC2D 42 in. LCD HDTV

1 Answer

Sound but no pic


The Lg you have actually has three boards that can cause the problem you are talking about. The control board, the y-board or the z-board. Usually most technicians will change the y-board and z board together since it is usually a combination of both that cause the problem. The control board by itself can cause the problem. The part #'s are as follows and these are straight from the LG plasma tv training manuals. 1- Control board 6871QCH053G, 2- Y board 6871QYH036D, and the Z-board is
6871QZH041B. The boards can be checked by looking at the voltages and signals but as I said some of those problems for no picture interrelate between boards. Hope this helped. Also with the back cover off those boards are clearly marked. The y board is a small board on the left and the Z board is on the right. The control board is of course in between them. They have tiny white stickers with the part # and assy# on them an also directly on the board itself. Always disconnect the power cord when looking at the inside by taking the back cover off.

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

1 Answer

LG 42pc3dv-ud


Yes you need to replace the board LG 6871QYH048B. The board has a short. Check the fuses and one of them should have no continuity
because it is open.

Replace that board and problem solved

Aug 25, 2008 | LG 42PC3DV 42 in. Plasma EDTV

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