Request for PN51d440A5DXZA Y-main schematics / audio only. No video

[ngth82]

Good evening Badcaps -

I'm looking for a set of schematics for the PN51d440A5DXZA - the Y-main board in particular. Does anyone have any leads on where i can find it?

Model Number: 50DH/DF Y-main(1 layer)
PCB: LJ41-09423A
PBA: LJ92-01760A HD
PBA: LJ92-01764A FHD

Unfortunately, the Y-main doesn't indicate which PBA number this really is.

The original owner said the video went out, but you can still hear the audio. When i received it, i noticed three N-Channel FETs were shorted out. All are RJP30H1's. I replaced them, but no dice so far.

Any leads would be greatly appreciated.

Thank you

[tvtimmy]

Re: Request for PN51d440A5DXZA Y-main schematics / audio only. No video

Yours is NOT the LJ92-01764A. That is for the 550 series. It s 3d tv.
Have you confirmed that the parts you replaced were not fake Chinese copies? There are tons of them around.

[ngth82]

Re: Request for PN51d440A5DXZA Y-main schematics / audio only. No video

Hi TVTimmy -

Thanks for the reply. Good to know the unit does NOT use the LJ92-01764A board. I guess i'm interested in getting the LJ92-01760A HD board schematics then. I just haven't been able to find a source for it.

I received the TV from the original owner. As far as the actual boards go - they are from the factory as far as I've been told.

The replacement N-Channel FETs came from eBay a few months ago since they are no longer manufactured. I've used them successfully on a different plasma repairs and they still work on the TV I have on the wall.