I went ahead and put in a new Main Board along with the original Y S Board, the same problem the plasma powers on for two seconds then I see the screen energizing then the shutdown, and 8 red blinks. I'm going to put the cover back on
and put this old girl to sleep maybe I will pull it out again and try a component individual repair of the lower buffer board which I think is causing this problem.

Broatch

Hello out there in Badcap land.

I have a Pioneer plasma that gave me the dreaded 8 red blink and shutdown, I have been trying to trace the failure points. On my last inspection while replacing a Y Sustain Board I noticed on the original and replacement board some missing solder, the points of connection
are from the Digital Address Board and the Buffer Boards. I have included the pictures, should I resolder these points or are they unsoldered intentionally? Any help would be much appreciated.

Thank you

Pixelcap...

I was ready to put my Pioneer Plasma back together and call it quits. I thought I would put the original Y Drive board back in before I put the plasma away and I thought to look at the solder connections on both boards one more time. I looked at the points where the Y board connects to the Buffer boards and where the ribbon connector from the digital address board connects to the Y board. I was confused and shocked as on both boards there seemed to be missing solder. I will post the picture and maybe someone can chime in on if these are bad points of connection.

I was able to see...

I have tried so much to repair the Pioneer Pro 111FD, but from what I have found my panel may be unrepairable. The best description I found anywhere of what I was experiencing with my Panel was this:

[url]https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-tvs-and-video-sources/28319-pioneer-pdp-5020fd-plasma-stby-light-8-flash[/url]

I found this here on Bafdcaps.

Broatchhttps://I have tried so much to repa...iption I found

No black lines either vertical or horizontal. I see the screen come up with HDMI top left with pillar box sides and a black center screen for 1 to 2 seconds then the power down followed by a red light error code eight blinks then repeat.
I have tested the VSUS and VADR on power up on the power supply and that is normal when the plasma fires up then the voltage drops as the power down happens. I think it's a bad cap or fets on the YS board or maybe the main board....

Lotas, thanks for replying to my post, this fix that you have sent is for the 8-blink BLUE led. My regulator checked out okay so this is not the problem. A deeper dive into the boards will reveal the culprit I hope.

Broatch
Venice CA...

Hello Badcap Family

I came here to learn more about troubleshooting all my electronics. My main project right now is a Pioneer Plasma 111FD. I own a fair amount of high-end digital cinema cameras and support equipment....