Question about LG 50PT350 50 in. Plasma TV

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Power clicks on then shuts off - LG 50PT350 50 in. Plasma TV

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  • Rajesh Feb 23, 2012

    Thanks a lot Chester! but i should have added a little more details, actually what happens is the tv turns on then after like 3 to 4 seconds i can hear it click off.
    There is not enough time for the screen to light up.
    I have a power supply board coming in the mail, hope it solves the problem.
    I really appreciate your response, if you have any other suggestions I would to hear from you or anyone else who experienced this problem, thanks again!

  • Rajesh Feb 25, 2012

    Still awaiting the power supply board its in the mail

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Hi!
That's a clear indication that you have a bad power supply in your TV.
If you know how to DiY...I suggest you open your TV. Locate the power supply section, it is where the end of the power plug is connected. Replace all blown or bulge or leaked capacitors with same value. That will fix your TV problem.
The hardest part is to disassembling your TV cover, cause you will need to pry off the snap in lock at the edge of your TV.

Power supply board should look like this. Examine the capacitors in the board
power clicks on then shuts off - power%281%29.jpg2_23_2012_11_31_16_am.png

After replacing blown capacitors...it should work again.
caps%281%29%281%29.jpg

Things you will need.
1. A plastic flat end screw or any object with flat ends....to fry off the cover
2. Soldering iron.
3. Soldering lead
4. Soldering pump.
5. Flat and Philip Screw
6. Replacement capacitors (of same value with the blown one) that you can buy to any electronics store.

Hope it helps

Posted on Feb 23, 2012

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Posted on Jan 02, 2017

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