Sanyo DP50740 weird lines

[splitcrete]

I got this tv for 50 dollars brought it home and plugged it in this is what I got.
Does this look like a bad panel Don't want to just toss money at it.
The buffers have no shorts and all the ICs look good.
Thanks

[splitcrete]

Re: Sanyo DP50740 weird lines

pictures

[splitcrete]

Re: Sanyo DP50740 weird lines

Pictures

[tom66]

Re: Sanyo DP50740 weird lines

That is most likely poorly seated ribbon cables on the Y-buffer board. Panasonic/LG/Samsung panel?
Easy fix, looks like someone may have replaced Y-buffer but couldn't seat ribbons proper.
Only adjust them with POWER OFF!!!

[splitcrete]

Re: Sanyo DP50740 weird lines

I reseated the cables but still the same. Is there a special way to seat them?

[tom66]

Re: Sanyo DP50740 weird lines

Post a picture of them. It varies with each type.

[splitcrete]

Re: Sanyo DP50740 weird lines

The x and y boards were replaced and the guy got pissed he had the lines on the screen.
There are no shorts on the buffer boards,and all volts are good . Could a bad cap make the lines?

[splitcrete]

Re: Sanyo DP50740 weird lines

OK here are the pictures

[splitcrete]

Re: Sanyo DP50740 weird lines

Do you need a picture of the cable disconnected?

[tom66]

Re: Sanyo DP50740 weird lines

So, Panasonic panel. Those are the trickiest.

Basically, pull every ribbon out. Start from scratch.

Undo the latch (lift it), slide cable in. Two positions: first is the easy one, the obvious one. Avoid that. Second gives a little click. You want to hear/feel that click, and make sure it's perfectly lined up in the horizontal.

Do that for each ribbon, and it should be golden.

From experience (having done a couple of Panasonic panels), these are always buggers to get right.

Be very careful not to tear/damage the ribbon.

[splitcrete]

Re: Sanyo DP50740 weird lines

Thank you Tom66 I will work on it now.

[splitcrete]

Re: Sanyo DP50740 weird lines

Tom66 its working thank you very much. I was ready to part this tv out. Its the click that I wasn't doing before very flimsy ribbons I didn't want to break them first time. Thanks again

[splitcrete]

Re: Sanyo DP50740 weird lines

Pictures

[tom66]

Re: Sanyo DP50740 weird lines

Nice TV for 50 bucks, then!

[splitcrete]

Re: Sanyo DP50740 weird lines

I still like my Sony KDL46-xbr5 Its been running good with a three year old tab bond fix. Going to try to post pics again.

[splitcrete]

Re: Sanyo DP50740 weird lines

No pics. now I have to fix my computer... LOL

[tom66]

Re: Sanyo DP50740 weird lines

Well yes this is a 720p panel vs 1080p Sony... so the Sony would look sharper. Panasonic plasma picture quality though is second to none once accurately calibrated.

[splitcrete]

Re: Sanyo DP50740 weird lines

Tomorrow I will tune it up get it 100% specs.

[splitcrete]

Re: Sanyo DP50740 weird lines

That is the picture after the ribbon reseat.