Question about LG 42PC3DC 42 in. Plasma HDTV

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Lg 42pc3d will not come on, Clicks and clicks. Capacitors look good

Will not come on

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What causes my tv when i push the power button to have the green light to blink 3 times than shut off

For this model it is usually power supply(look for popped or bulged capacitors) or YSus board(look for shorted components}

May 17, 2014 | LG 42PC3D 42 in. Plasma Television

1 Answer

We have an LG tv 42PC3D when we turn the tv on it clicks on and off and does not turn on. We pulled the back off and the clicking sound was coming from a circuit board # 68719PT299A.

u have power problem. it is the mechanical relay clicking. it tries to turn on but since there is power related problem, it auto turns off again. it is the way they are desinged to prevent further damage. any LG service centre can replace the board or a qualified tech can repair.

Apr 16, 2010 | LG Televison & Video

1 Answer

LG 60PC1D making clicking sounds

A common problem for these is bad capacitors in the power supply, Remove the back from your Tv and look at the power supply on the left hand side.

You will see roughly around 9 x capacitors that are bulged / domed shaped on top usually these are valued at 3300uf 10V any that have bulged or leaked a brown like substance should be changed.
This will cure the problem as they overheat being sat next to a heatsink that gets very hot!
Try and change them for the same 3300uf but a higher voltage.
Hope this helps
Please rate my reply ++++

Apr 05, 2010 | LG 60PC1D 60 in. Plasma Television

3 Answers

I had a LG 42PC3D 42 in, i heard a pop sound and the screen went black, but still has sound.what is that problem and what i need to do to fix it. Please.

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Most likely a power supply component has aged and thus changed value and/or failed. Take it to a reputable repair person.

Mar 13, 2010 | LG 42PC3D 42 in. Plasma Television

1 Answer

I have a lg 42pc3d plasma that will work for about a half hour than make a clicking sound like it is being shut off and on with the remote than lose picture and sound and i cant turn it on unless i un...

hi gsgoer
Just read the description of your problem and without being there with measuring tools;
The power supply estimate sounds like a fair evaluation of the problem in your model.
Good luck with the repair.

Feb 22, 2010 | LG 42PC3D 42 in. Plasma Television

1 Answer

LG Plasma 42pc3d turns on, pops, turns off

Its very likely that you need to have LG perform a sodtware upgrade on your unit. Contact LG and see if your tv is one of the applicable units with software upgrade issues, please let me know if it works. Good Luck.

Dec 02, 2009 | LG 42PC3D 42 in. Plasma Television

1 Answer

Screen has gone black

This thing's gotta go to the shop. Don't poke around back there, very high voltage. Check around for a reputable tv repair shop. If it's real heavy, maybe you can find someone who makes house calls?

Nov 24, 2008 | LG Televison & Video

1 Answer

Problem with LGv 42PC3D - won't turn on

The POWER SUPPLY UNIT with Out !!!!
Go to 
for the Part Types, the cost is about $160.00.

Sep 09, 2008 | LG 42PC3D 42 in. Plasma Television

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