Sansung fp-t5084 black vertical lines, other issues

[jimmy2]

Samsung fp-t5084 plasma, picture went out and found many bad caps on the power supply. Pulled and replaced the caps. Powers up but no picture. Replace y-main and both upper and lower buffer boards and tv has a picture with two vertical black lines on the left side. Read it could be a connection or a bad f-address board. Picked up a cheap f-address board and as soon as it powered up 5 22ohm resisters fried. Still have the same two black lines. Can the power supply still be an issue or maybe the x-main? Can the panel be bad? Any help would be greatly appreciated.
Thanks Jim

[jimmy2]

Re: Sansung fp-t5084 black vertical lines, other issues

Any thoughts on this issue. I don't want to give up!!

[tom66]

Re: Sansung fp-t5084 black vertical lines, other issues

Possibly a bad panel...

[Cosmo66]

Re: Sansung fp-t5084 black vertical lines, other issues

I have one of these models I'm working on right now. After doing some research online, it sounds this model in particular is plagued with many problems. I found blown caps all over the y sustain and power supply. I've replaced almost every single one. I'm ready to huck the thing out the window

[Cosmo66]

Re: Sansung fp-t5084 black vertical lines, other issues

Have you checked the connectors to the panel?

[jimmy2]

Re: Sansung fp-t5084 black vertical lines, other issues

Have you checked the connectors to the panel?

I have released and pulled out the ribbon cables on the board where the black bars are appearing. They seemed to be secure. I just dont understand why a replacement board would have 5 resisters burn up as soon as power up. Im thinking of replacing the resisters and powering the set up with the panel connectors unplugged to see if the resistors still fail. Could a bad panel maybe cause the board to fail??

[tom66]

Re: Sansung fp-t5084 black vertical lines, other issues

If the driver IC in the flex is shorted, it could cause that.

[jimmy2]

Re: Sansung fp-t5084 black vertical lines, other issues

anyway to tell if a driver ic is shorted??

[tom66]

Re: Sansung fp-t5084 black vertical lines, other issues

Not 100%... but generally when you have single pixel lines or blocks about 4cm wide, it's the panel. The F-address has very little on it which can fail, usually it causes the whole half or third of the screen to fail.

[jimmy2]

Re: Sansung fp-t5084 black vertical lines, other issues

Not 100%... but generally when you have single pixel lines or blocks about 4cm wide, it's the panel. The F-address has very little on it which can fail, usually it causes the whole half or third of the screen to fail.

I have two complete black approx two inch wide vertical lines out

[tom66]

Re: Sansung fp-t5084 black vertical lines, other issues

Yeah, that looks like a panel failure to me. It could be a loose driver connector, but it seems more likely to me that it's a bad panel.

Note: If the 5V on the PSU went too high due to bad caps, it could damage the panel.