Question about LG 42PC3D 42 in. Plasma Television

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LG 42PC3D-UE Turning on, clicking, then turning off & repeat

42" plasma that will turn on, (green light comes on), then it will click and turn off. It will continue doing this until I completely unplug the power cord. Is this a power supply issue?

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  • carpenter_br Aug 03, 2009

    thanks for the info guys! i took it to a place and they're telling me it's the y-sustain and y-driver boards. does that make sense?

  • carpenter_br Aug 05, 2009

    still working on it...will let you know what i find

  • carpenter_br Aug 23, 2009

    hey pete,
    i just bought a new power supply board from ebay, installed it and the tv came right on no problems. been using it for a week now with no issues.

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Replace the power supply it is a simple fix if you can hear the relays click 2 times or more replace the power supply board you can order them from UNION Electronics ask for kyle when you call ,,if the power supply isnt the problem then it will be the control board located below the power supply board I have repaired a few of these the voltages are marked on the power sullpy board conections be careful there is a VERY HIGH AND DANGEROUS VOLTAGE FEEDING THE X AND Z BOARDS DONT REMOVE THIS WITH SET PLUGED IN IT IS HOT ENOUGH TO BURN A HOLE IN YOUR SKIN AND EVEN DO MORE DAMAGE TO YOU if your not sure what to do Call LG they have a good support theam there

Dave
Daves Tv

Posted on Jul 24, 2009

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Yes this is the problem with the SMPS section or with the power switch circuit. You take it to the appropriate service to get the things done and to avoid the major issues.

Posted on Jul 22, 2009

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Sorry i cant help, but i've got exactly the same problem on my LG, did you ever find a soloution thanks Pete

Posted on Aug 05, 2009

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Posted on Jan 02, 2017

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