Question about Sony Grand WEGA KF60XBR800 60" Rear Projection Television

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60XBR800 - All kinds of issues

My tv is doing all sorts of things. Here is the list.

- Will not turn off (has to be unplugged)
- Makes popping sound through speakers (like a heart beat, low thump)
- Stop responding to remote commands (the menu will show and navigate, but the tv never actually does what you tell it to)
- Will not switch inputs (it will show that it is changing from 1 to 2 to 3, but the picture freezes from the last input it was on, until you get back to that input and it will resolve start back displaying that source. It never actually does display and of the other sources.

I know the sources work correctly b/c I have tested them on another set.

The tv only does this from time to time. Sometimes I can watch it all day and it does not do this, and sometimes it's on for 5 mins and starts acting up. So far the only solution is to unplug the power cord and plug it back in to get it to start responding again.

I had a 5 year warranty on the TV, so a tech has worked on it a few times. To date we have replaced the light engine (for a ghosting issue that was corrected), the A-1300-698-A, & A-1300-697-A boards but this has not corrected the issue. They finally decided to give me a new TV, but I get to keep the old one. I would like to try and fix it, and from what I can tell I think the next board to try would be the M board (A-1300-699-A). What are your thoughts?

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I would tap on the boards with a plastic end and see if i could duplicate the problem

Posted on Jan 10, 2008


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I don't like to post anything without some kind sort of solution but this one's been tough.

For a list of what seems to be a chronic issue with RCA. I included a list.

I did come across these two posts, hope it helps.

"well people don't be afraid all you have to do is to change a Horizontal out put transistor D3402 and that all is common problem I am a tv technician and already know that this kind of problem is normal good luck"

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The first thing to check is for dry solder joints on all parts of the circuit board you are having problems with, but as for that popping sound more often than not it is caused by a faulty capacitor somewhere. Hope this helps.

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