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Equipment Repairs => PLASMA TV forum => Topic started by: mali67 on June 15, 2012,11:10:28

Title: panasonic Tx P42s10b dead
Post by: mali67 on June 15, 2012,11:10:28

Hello, I have a Tx P42s10b which seems to be dead after checking around in the psu im only finding a 5v and a 22v. and some mains voltages.
there dosnt seem to be anything comming out to any of the connectors

there are no leds lit at all.
No relay clicks
Ive checked all fuses, diods, Has anyone experience with this psu ETX2MM747MF

Thanks

Title: Re: panasonic Tx P42s10b dead
Post by: mali67 on June 16, 2012,06:47:12

there is a very quiet ticking noise coming from the psu, sounds like its coming from a tansformer trying to kick in

Title: Re: panasonic Tx P42s10b dead
Post by: jordan on June 16, 2012,07:29:33

Chassis GPF12DE/Panasonic
Led blink ???? X time ?????
Check optocoupler P685 on SC board

Title: Re: panasonic Tx P42s10b dead
Post by: mali67 on June 16, 2012,07:56:02

Quote from: jordan on June 16, 2012,07:29:33

Chassis GPF12DE/Panasonic
Led blink ???? X time ?????
Check optocoupler P685 on SC board

no led blink at all
and cat find p685

Title: Re: panasonic Tx P42s10b dead
Post by: mali67 on June 17, 2012,04:25:18

still stuck with this one

Title: Re: panasonic Tx P42s10b dead
Post by: mali67 on June 26, 2012,03:07:44

still stuck on this one

Title: Re: panasonic Tx P42s10b dead
Post by: mali67 on June 26, 2012,05:11:02

or a service manual would be great cheers

Title: Re: panasonic Tx P42s10b dead
Post by: jordan on June 26, 2012,08:40:06

I send on your email

Title: Re: panasonic Tx P42s10b dead
Post by: mali67 on June 26, 2012,17:43:04

cheers jorden

Title: Re: panasonic Tx P42s10b dead
Post by: mali67 on June 27, 2012,04:14:42

still stuck with this one, im getting no voltages at any connectors.
Just a ticking from transformer t501.

Title: Re: panasonic Tx P42s10b dead
Post by: zica on June 27, 2012,13:39:48

Have you checked if there's any shortcuts on secondary side. PSU goes into protection?

Title: Re: panasonic Tx P42s10b dead
Post by: mali67 on June 27, 2012,13:50:41

checked for shorts, checked all diodes, transisters, i know im missing something, im just stumped,
the clicking sounds like the transformer 501 tripping
for some reason i now have no standby voltage neither