I can see enough to tell the menu's still work - I can change inputs, access the internet features, even open up Skype. But the picture is effectively gone. I know there are generally a few main boards to replace when problems arise, but I haven't seen this particular problem associated with one of the main boards (at least not with my googling). Not sure then if it's worth my time replacing stuff?
SOURCE: Red noise or flicker on bottom half a plasma screen
The old saying that a pictures is worth a thousand words could have been looking at this one... If the lower screen had been streaked in B&W or bands ran completely through the picture Old Drummer I would suspect the logic board also but that's lower y-board failure.
Bill
SOURCE: Iwas watching my panasonic plasma and the screen went green.
One of the "Y" buffer boards have failed. The buffer boards are located on the left side of the set looking from the back. There are two of them. One for the upper half of the screen, one for the lower. Disconnect and replace the one that had the blank portion of the screen.
SOURCE: Panasonic 50" Viera plasma on/off problems
its the problem in main board.any of the capacitors or ic are getting overheated that needs to be checked and replaced. thanks.
SOURCE: panasonic viera tv won't turn on. Power light
hello, you have a either your su, sd or sc boards fualty and it is a driver sos1 thats what the manual reads the best thing to do if your not electronically inclined or able to fix it is to get a service manual and make sure it is for your specific model and size you will find what the 7 blink codes mean, on my side i have a 42 in pana the service manual for this set and your is similar so since it is not the same model i cant tell you exactly what the truoble is but your best bet is to find a service manual find the 7 blink fualt then without getting ripped off you will know what the service man needs to do if you dont know or cant replace the parts yourself that is besides having to download firmware from your computer to a sd card and update your set but you need to solve the blinking code first it may solve the entire issue. the tv should come on when you resolve the blink codes or replace the fualty board or boards
SOURCE: LG 50PG25 Plasma TV, black screen sound still works.
this faint picture issue is usually caused by a bad z sustain board. it is the smaller scan board on the right side of the tv when viewed from the back. it has some large cables that energize the plasma panel, dont confuse with the y sustain which has the tiny ribbon cables that address each line of the picture.
there should be a # on the board indicating the part number, plug it into a search engine to find parts.
this could also be a low voltage or something else, check the Vs and Va voltages and confirm theyre correct with the ones listed on the sticker inside the tv. Be careful this is dangerous and you can get shocked if you not familliar. The heatsinks can be energized and shock you , exercise caution. if you order a z sus board, make sure you can return if it doesn't fix. I'd say 95% chance its a z sus
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