Question about LG 50PC3D 50 in. Plasma Television

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Hello, I have a LG 50pc3d plasma TV. I was suggested by you all, that my power supply unit was bad and needed replaced. Could you please give me the part #. and price if you have one available. Also is possible to get a wiring diagram of this TV? Thanks, Don

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  • LG Master
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Power supply # 6709900020A Sub Board number is EAY32957901
You can go to this website and download Service Manual for FREE Encompass Parts Distr. Heres another Tip Go to E-Bay Look for Parts their I have found them there Cheaper then what Companys want for them Look Under Electronic Parts Also Ive seen where you can Buy thw whole TV with screen Broke but all Parts in them work! Try UED for part 1-800-648-6657

Posted on Dec 09, 2009

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Posted on Jan 02, 2017

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1 Answer

50" lg plasma tv when i turn it on it shuts down in a few sec after doing this several times it will eventually stay on what can i do


The power supply board have problems,it not giving the tv the right votage anymore.That why it shutting down,not sustancening power to the tv anymore.That the board,where the power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power board for the replacement.

Oct 16, 2010 | LG 50PC3D 50 in. Plasma Television

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Hi there I have a lg 50pc3d plasma. It does not turn on. When I power it up it clicks and then clicks again and Turns off but the red light on and when i press TVinput or input and channel up/down from...


Power supply board is dead.That the board,where the power a/c plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

Aug 10, 2010 | LG 50PC3D 50 in. Plasma Television

1 Answer

My lg 50pc3d turns on then off on off on off what is it?


The problem is associated with the power supply or the main board since these two parts are responsible in communicating in order to turn the unit on sequentially.
To find which one is the culprit:
  1. Unplug the unit.
  2. Remove the back cover.
  3. Disconnect the cable that connects the power supply and the main board.
  4. Plug the unit to the AC outlet.
  5. If the power supply automatically turns on and stays on, you have a bad main board. Replace it.
  6. If the unit does not automatically turn on or turns on but shuts right off, you have a bad power supply.You need to replace it.

Nov 07, 2009 | LG 50PC3D 50 in. Plasma Television

1 Answer

Is there such a thing as circut board power pack for a Plasma tv 50P3CD?


There is such thing as power supply unit for LG 50PC3D Plasma TV with panel model PDP50X30010.Part number is 68709M0046A. LG part number is 6709900020A.



Nov 03, 2009 | LG 50PX5D 50 in. Plasma HDTV

1 Answer

Tv does not have power


most likely a bad power supply but you will need someone to check it who understands this type of circut it may be just the supply but it may also be another fualt that cuased this part to fail. so its a bit technical. you can also get a lg specific model tv service manual and check "no power" fualt area troubleshooting tips. hope this helps

Jun 24, 2009 | LG 50PC3D 50 in. Plasma Television

1 Answer

LG 50PC3D not turning on


Without seeing the unit itself and opening it up/running tests I couldn't tell you exactly what is happening, however I can offer some suggestions as to what it could be.
1) your power supply is bad. That clicking sound is the power relay coming on and going off. 
2) your main board is bad. It handles a lot of your signals for powering on your set. If it's bad, the tv won't turn on correctly as it doesn't recieve all the right signals.
3) your Y or Z boards are bad. These could cause the power supply to go into shutdown if the voltages on these things are too far out of whack. 

Easiest way to tell if you're going to go into your tv is to try to unplug your Y and Z boards and turn it on. If it turns on and stays on chances are one of those two boards are bad. 

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Power problem with an LG 50PC3D Plasma 50" TV


YOU PROBALY HAVE A BAD Y SUSTAIN BOARD OR POWER SUPPLY. POWER NEEDS TO BE DISCONNECTED FROM THE Y SUSTAIN AND THE VA & VS VOLTAGES CHECKED.

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i have a 60 inch tv i just order the power supply kit i want to install it myself do i have to open the whole back of the tv.

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