Question about Sony KP-53XBR200 53" Rear Projection Television
I am getting a snowy picture in video sources on this television, the PIP looks great but full screen is snowy in all video inputs and sources even using the S-video inputs. I spoke with a Sony Technician who said I possibly need a logic board.
Do you have any suggestions and if I do need a logic board, where can I get one, I am told Sony discontinued making parts for this model.
I'm working on the same problem. I posted a little about this problem under another question for the 53XBR200. From what I've learned so far with experimenting and studying the schematics is that the problem is with the BR board which is the module that handles upconverting. PIP video goes through the BM board/module. You can pull the BR board out of the set and still have the TV work as long as you keep it in PIP modes. Likewise, you can pull the BR board out, but the set will turn off if you try to go into any PIP mode. The problem with static on every input only remains in full-screen video. As you've noted, all inputs work fine as long as you remain in one of the PIP modes. It does look like the BR board is discontinued. I would like to know how to get a replacement/repair if anyone knows about this. My only hope to get this set functional again is to either force the video to bypass the BR board, or repair the BR board itself. If it's a discrete component on the BR board (capacitor, resistor, transistor) then it might be possible to salvage a repair. If it's one of the upconverting chips, then we might be SOL. I've tried to jump the video signals around the BR board, but this didn't work and the picture looked distorted. I think the problem with this idea is that the video processor might be expecting 480p/960i video and by bypassing the upconverter I'm sending 480i video into the video processor. I'm going pursue this idea some more as it might be the only way to salvage the set from the trash bin.
Posted on Jan 02, 2008
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