Philips 42PF7320A/37 7 Blink error

[Polllo]

Plasma TV, Chassis BP2.3U AA, Serial YA1A

On new year's eve, right as the ball was about to drop... our TV dropped the ball.
Black screen, and a red LED blinking 7 times.

I took a look at the service manual and it indicates a failure in the 8V6 module.

I tested as many fuses and capacitors as I could, everything checked out. So following this thread, I changed the entire PS board and Control board. 7 blinks.
I also replaced the SSB, since that is what the 8V6 current is apparently going to, no dice.

Then there's this thread, in which the OP goes to test his y-sus and buffer, but never comes back.

Considering that the error detection indicates a power issue that doesn't seem to connect to these boards, is it at all possible that the y-sus might be at fault?
Using this method to test it I am getting vastly different results and I just don't want to think that I have to buy a new TV.

Could the EMI filter be at fault? Considering that 8v6 comes later in the start-up protocol, I would assume that the displayed error would come from the first power module in line, but maybe it's just not getting to 8v6 the way it should?

I was just wondering what others would recommend.
Thanks in advance!

[capkid]

Re: Philips 42PF7320A/37 7 Blink error

Did you try disconnecting boards from the PSU to see if the PSU would power up?

[Polllo]

Re: Philips 42PF7320A/37 7 Blink error

Yes, I've disconnected every electrical connector from the PSB.
I've also disconnected the buffers separately, and still got the 7 red blinkers.

[kca]

Re: Philips 42PF7320A/37 7 Blink error

Hello Polllo ~

I am wondering if you ever found a solution to this problem. I have a very similar (if not the same) situation with my Philips tv, and was about to buy a SSB and maybe even a PSB if the SSB replacement didn't work. I came across your posts and am glad I did before any purchases.

Your prior thoughts reflect mine exactly. 7 blinks should be related to the 8V6, and that seems to be most directly connected to the SSB.

I have posted here on Badcaps over the last couple of days with some more information related to my problem. If you want to take a look, you can begin at this link and on Post #27. I replaced the two caps that were bulging (C8059 and C8060), but am wondering if they still might be an issue or if other bad caps turned out to be your problem.

I'd really appreciate it if you could provide some insight and guidance as I am hopeful that you ultimately found the source of your problem and a coherent fix.

https://www.badcaps.net/forum/showthread.php?t=20887&page=2

Thank you in advance for your reply ~

kca
(David)

[kca]

Re: Philips 42PF7320A/37 7 Blink error

By the way, I loved your quip about your TV dropping the ball on New Year's Eve.

Very clever.

[kca]

Re: Philips 42PF7320A/37 7 Blink error

Hello Polllo ~

Just thought I'd try to reach you one more time re: your Philips plasma cited in this thread. It would be great if you and I could connect. I'm very interested to know if you ever found a solution to your situation.

Thanks in advance for any reply you can provide.

~ kca
David