Originally Posted by vinylbudgie
First time poster here. I've read through most of this thread today and can already see some of the mistakes I have made trying to fix my TH50-PZ800u, but my particular issue seems to be slightly different from others I've seen posted so maybe it will be of use to someone.
This particular TV has been creaking and groaning for a while, metaphorically speaking. Last year I was able to fix an 11 blink startup issue by replacing all of the fans and the fan board. I also had another 50" Panasonic TV that I was able to save from a 1 blink startup issue with a new A board, so my confidence at fixing these things was going up (too far it would now seem).
This year I started getting an 8 blink issue, which I attempted to fix by replacing the D board. When I put in the D board the problem changed from 8 blinks to 7 blinks, so following the troubleshooter again I ordered an SC board.
When I first fitted the new SC board the TV switched on fine but with a solarized image (like a negative).
I tried putting back the old SC to see if the 7 blinks would come back (they did) I then lifted up the A board to recheck the connections to the D board (previously replaced when I had 8 blinks) It all looked fine so I refitted the new SC board. Solarized picture returned. At that point I noticed some damage to the P12 connector (the one that runs to the SS board) When I tried to remove the plug having noticed evidence of burning (green residue) two the pins on the connector broke off completely.
Now the TV is completely dead (ie no lights at all) Does anyone have an opinion of what my next move should be? I am considering sending the P board off for a rebuild to someone on Ebay. What are the chances I've fried the SS or other boards as well? Perhaps I needed to make sure all the screws were tightened when I tried out the old SC board again.
From reading this thread through it would seem that the 'meta' issue on this TV was likely the underspeced caps on the 201 and 301 boards.
Was the solarized image evidence of a voltage overload? Is that what destroyed my P12 connector? The service manual does talk of the necessity for a 'voltage adjustment' after replacing an SC board but did not describe how one might actually achieve that.
Any help or advice will be much appreciated. I should say that I live on a tiny Island in the middle of the ocean so access to a 'proper' TV repair person is impossible.
Thanks all and sorry about the long post.
wow, that's something new. As soon as I read 8 blinks, i was thinking Ss board, but that proves it's an SS / supply issue.
You probably could locate a new socket and recycled cable although cable for sale would be rare. If you're skilled, why not desolder and remove the socket. label the cable leads with their pin number, cut the plug off, strip the wire to clean copper, i expect that corrosion is under the insulation , like electrolysis, solder the leads into their respective spot in the board. basically hard wire it in.
the only issue is whether the holes in the PCB are big enough for the wires to fit and desoldering will most likely make the holes smaller with solder remnants in there.
But you'll need soldering iron, tools, solder sucker, solder braid solder etc. flux pen helps with clean soldering.
I had a quick look and looks like the power switch, 15V to the Ss and Vda to the C buffers and panel routes via that , via SS,. vda to the panel is something you'd want right. If any thing gets damaged along that path especially the driver ICs on the bottom panel ribbons via the C buffers, it's non repairable permanent panel damage. How's the other end at the SS and also ss35?
the OEM number for the P12 connector, AKB10B-PH-KS
I'm not seeing numbers for that cable though