Question about Philips 42PF9631D 42 in. Plasma Television

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Philips 42 inch HDTV - "FlatTV" Plasma -- does not turn on.

Sometimes it turns on, but other times the green light comes on & then switches off. Then a flashing red light turns on instead of the green "on" indicator.

To fix this problem I can unplug the TV, then plug it back in & try again. Eventually after 3 or 4 times of turning it on & off & unpluging it the TV will turn on.

Why does this TV **** so much?

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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. http://www.shopjimmy.com/power-supply-unit-lj44-00118a-from-philips-50mf231d-40.htm. 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 # http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=493-1754-ND. Total cost was $7 with S/H.

Posted on Jun 25, 2009

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