Panasonic Plasma TX-P42G15E 5 blinks

[meciu]

Hi,
I'm owner of a Panasonic VIERA TX-P42G15E with 5 blinking led issue.

I've searched of any guide how to deal with this problem so at this moment I know that:

- One transformator makes a humming noise after powering on TV, but afer 1-2 sec power supply turns off and LED starts to blink
- Pin 1 on connector P35 isn't shorted
- Pin 5 of connector P25 isn't shorted
- There is around 5V on pin 5 of connector P25 (my multimeter lags so the highest voltage I can see before PSU turns off is about 4,5v)
- Tried to swap PSU board but still 5 blinks.

Now I'm almost sure that A board is broken, but I cannot find that one with matching number from the sticker, only boards from G15B are availible (my board is TXN/A1DYUE and availible on ebay are TXN/A1DYUB)

Is there any way to fix this? I'm missing my good plasma

[Alastair E]

Re: Panasonic Plasma TX-P42G15E 5 blinks

Nah--5V line issue will cause sos 5, monitored by pin 60 of micro....

Lots of stuff can cause that, the P board the SC and the SS could cause this fault.
--Disconnect the three ribbons from A board as well as the SC2 and P2, as well as the similar cable to the SS.

Test again check if it gives sos code or runs. Prolly runs, then check-
Q401, Q402, Q441, Q442, Q661, D865 et on SC

[tw2005]

Re: Panasonic Plasma TX-P42G15E 5 blinks

I'd check the SC board too, I have put up a chinese tech bulletin for SOS5 due to SC baord failure, try searching the sc board number maybe in the forum