Question about LG 42PC3DV 42 in. Plasma EDTV

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WON'T TURN ON.

MY LG PLASMA TV WAS TURN OFF WHEN I WENT TO WORK. CAME BACK HOME AND THE TV WON'T TURN ON, NO NOISE NO RED LIGHT. JUST WON'T TURN ON. (42PC3DV)

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  • 187 Answers

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

Posted on May 29, 2009

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Posted on Jan 02, 2017

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2 Answers

I have a 2006 LG 42PC3DV Plasma TV and everytime I try and turn it on it makes a double clicking sound and then turn back off..any reason why?


try to test the relay,, or maybe the capcitor, diodes in power source section with your multi tester,, and i think, there is a thermostat beside power that leaks or defective maybe,, then try to change it..

Jul 28, 2012 | LG 42PC3D 42 in. Plasma Television

1 Answer

42" plasma worked fine this


Hi
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

Sep 15, 2011 | LG 42PC3D 42 in. Plasma Television

1 Answer

I have a LG 42pc3dv with no picture just sound. I have this tv over 3 years, other people experienced the same problem, some of them mentioned the Y sustain board. Is this an easy fix.


Check the fuse on the Z-sustain module. The module all the way to the right (looking from the back) If blown (and before the set went out there was a loud pop) you need to change the IC on the Z-sustain part number STK 795-820 or 821 and the fuse. If you don't want to bother unsoldering and soldering back this part and you know the fuse is blown then replace the Z-sustain module. Do a google, ebay, or shopjimmy.com search with the model number for price and availibility.

Jun 16, 2011 | LG 42PC3DV 42 in. Plasma EDTV

1 Answer

I have sound but no picture lg42inch,(42pc3dv-uo)model,i try unpluging it for 30second turn it off and on nothing work.


if you still have the red stand by light then you power supply is ok, next you need to remove the back and look for a blown fuse on your y-sus board that will be found on your left,.

Apr 24, 2011 | LG 42PC3DV 42 in. Plasma EDTV

1 Answer

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.

Mar 26, 2010 | LG 42PC3D 42 in. Plasma Television

1 Answer

I have a lg 42pc3dv plasma tv. it made a loud pop


Looking at it from the back, the board on the left is the ysus. You should see a big red cable coming from the power supply board in the middle of the set going to the ysus. Near the red cable plug on the ysus should be a fuse. Most likely the fuse has blown. If it is you need a ysus PCB. Check out encompassparts.com. If you get a new board be sure to set all the controls on the new board to match the old board. If you don't you will have little sparkles all over the screen when it comes back on. I hope this helps. You may want to check all fuses on the power supply and the zsus which is on the right side of the set. I have seen both the ysus and zsus be bad together. Good luck and thanks.

Oct 24, 2009 | LG 42PC3D 42 in. Plasma Television

1 Answer

Lg 42'' plasma 720p no picture


This is not good. Was your tv unplugged or just power button off when you left for vacation. PlasmaTvs are highly susceptible to damage from power surges caused by lighting. Leave unplugged for at least five minutes then plug back in and see if this helps.

Aug 15, 2009 | LG 42PQ30 42 in. Plasma TV

3 Answers

No picture, sound ok


I have a similar issue. Sometimes the entire screen goes black and sometimes only one-half - either the top or bottom half goes black. The only solution we have found is to gently tap the TV (usually the front side) and the picture will come back for awhile. It almost seems heat related as it only goes out after the first 10 minutes of use. There must be a fix to this.

Aug 25, 2008 | Philips 42PF7320A 42 in. Plasma HDTV

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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