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Bruce Esquibel
 
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RobR wrote:
: Thanks very much. I got some more specific info
: as well, so if anyone else happens to google looking
: for this info, here is what I was told:

: Pull the speaker grill and check the fuses F901 and F902 on the convergence
: board. If one
: is open, you have a bad output IC (IC1704 or IC1705). Replace them both.
: Don't try to
: adjust anything or you can make things worse.

Probably worth looking into but one other suggestion, simply unplug the set
from the 120V for a bit then try it again.

I had a similar model a while back, bought new. One night while watching it,
the set made a snap and the picture was quite similar to yours. Tried power
cycling a few times, figured it just went bad.

Since it was under warranty (probably was 2 months old at the time), I
called to have them look at it. The service appointment was for monday, the
set crapped out thursday night. Tried it on and off everyday, same thing.

Monday morning I figured to pull it out into the room and move away the
surround sound speakers so the guy could open it up without making a mess of
everything.

Did that, unplugged it, hooked it up to an extention cord and made sure the
antenna was at least hooked up so he could see the problem and son of a
bitch, the set was perfect.

Tried it a few times, on/off, unplug, plug in, worked every time.

Got on the phone to cancel the appointment, they were already on their way.

He showed up, I explained the story to him, he just shrugged his shoulders
never touching the set and said "it happens sometimes".

Never did look up the schematic to see a possible cause but no power to the
convergence board makes sense (picture looks like a ribbon). Just can't
think what could of been "stuck" that the mains pulling could of cured.

Hmm, just checked, not the same, was a kp53v75.

Free to try anyway.

-bruce