Question about Philips 42FD9954 42 in. Plasma HDTV

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Power issue I have the 42pf9956/37. Same thing. Hit the power and it just clicks. I took off the back cover and tried the power and found the relay that was clicking. I have two blue relays in the middle of the board. I took a hair dryer and placed it over the relays. After a minute I tried the power and after 4 times it stayed on. Not sure why, but it is free. I won't turn it back off soon though. Why does this work??? Kevin

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The Philips Plasma TV have a problem with electrolytic capacitors going bad. I believe you heated some capacitors and your problem may return. If so, try replacing 2540 (100ufd@25v)
and 2508 (4.7ufd@50V).

Posted on May 06, 2008

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42PF9956/37 SHUTSDOWN...


Ok. I got my tv back on.
I pulled off the back cover and found the relay that was clicking.
I have two blue relays next to each other that click when the power is pushed.
I placed a hair dryer over the relays for about a minute.
Once heated up, it only took 4 tries to get the TV to stay on.

Jan 03, 2008 | Philips 42PF9956 42 in. HD-Ready Plasma...

1 Answer

42pf9956/37 philps plasma


I don't know why but this got my TV on.
I took off the back cover and found the source of the clicking.
Two blue plastic rectangular relays in the exact middle.
When I pushed the power button, I felt the top relay click, and I saw a flash from the bottom one. (they are right next to each other)
I took a hair dryer and placed it over the two relays for about 1 minute and tried the power.
It clicked only 4 times and then came on!!!!!!!!!
For some reason heat helps the relay.
If anyone is a tech and can explain this, please do.
Good luck!!!!
My tv is on and it didn't cost me anything.
I just can't turn it off now!!!

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