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Insignia pdp42x40523 plasma tv

Hi ive changed the power supply and clicks on then off also unplugged my y and x boards to narrow down same thing clicks on then off with no sound or pic then with everything hooked back up there are three connections on lower left of power supply that comes from main board with the top two unplugged it doesn't click on and off do I have a bad main board? thank you very much

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6 Suggested Answers

  • 2 Answers

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Posted on Jan 02, 2017

  • 44 Answers

SOURCE: Bad power supply and regulator circuit

I had the Same issue. on a 50PF9431D/37 set. Many Plasma Set's use a LJ44-00118A PS-505-PH Power supply from Samsung. Known to have this common problem. If you can, or have a friend that can Solder components?. Unplug your set remove the back panel & locate your power supply. It will be the PCB in the center of the set just above the Video/Audio connections. Is a Link to a photo of the PCB. Make a note of the locations of all cable connections then unplug them all. Un-install PCB, Check all Fuse first. I believe their is 5 or 6 of them on the PCB. Then replace the two 3300uf 10v 105C Radial capacitors at C8060 & C8059. Look to see if the Caps are deformed and or split at the top. The location of the caps are in the Lower bottom edge of the PCB. A local shop may Carrie them if not, digi-key has them. Part # Total cost was $7 with S/H.

Posted on Jun 25, 2009

  • 304 Answers

SOURCE: Samsung TV Power Supply Board

I doubt that moisture damaged the SMPS bd.
There are many circuit boards in your set and it will take a trained samsung tech to find the problem.

Posted on Jul 17, 2009

  • 30 Answers

SOURCE: power supply is bad on philips plasma 50 inch tv, it just clicks

nice job... thats the most common problem with all LCD tv's now

Posted on Jul 21, 2009

  • 70 Answers

SOURCE: insignia ns-pdp50 plasma. pop of death, audio but no video

I suspect that your supply has gone bad. You will need to find the service manual for voltage measurements. If you want to get replacement boards many can be found on ebay or you can check they stock boards for many units and I have had no problems.

Posted on May 04, 2010

  • 33 Answers

SOURCE: I have a Hitachi P50H401 plasma TV ,when you hit

unplug the unit for a while like one hour or so.

Posted on Sep 03, 2010

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