Hi, I have had my pioneer rear projection tv for about ten years now, not
many hours of use. Just yesterday it turned off by itself and will not turn
back on. If I unplug it for a few seconds and plug it back in, It will power
up then shut off about 1 second later, sounds like a relay is dropping out
or something. Does it sound like a power supply problem?...Anything else I
should check?....thanks rick

"Rick" wrote in
:

Check the power supply board for failing solder joints. since your
problem is it's shutting off AFTER a period of time operating normally
it's safe to say that a solder connection is opening up randomly. Look
for any connections that have hairline rings around the component leads.
this will be more noticeable in areas where components really heat up
(discoloration on PCB)





Hi, I have had my pioneer rear projection tv for about ten years now,
not many hours of use. Just yesterday it turned off by itself and will
not turn back on. If I unplug it for a few seconds and plug it back
in, It will power up then shut off about 1 second later, sounds like a
relay is dropping out or something. Does it sound like a power supply
problem?...Anything else I should check?....thanks rick

Pioneer is noted for poor solder connections in the power supply and
deflection circuits. Removal of the circuit board is necessary to inspect
the connections with a magnifying glass. While there use your esr meter to
check the caps since the set is 10 years old there are definitely some of
those that need replacement. Also may want to check the convergence output
circuit board for similar problems and maybe even replace the STK output
device. Be thorough, this probably will not be a quick fix.
"Cliff S" wrote in message
7.132...
"Rick" wrote in
:

Check the power supply board for failing solder joints. since your
problem is it's shutting off AFTER a period of time operating normally
it's safe to say that a solder connection is opening up randomly. Look
for any connections that have hairline rings around the component leads.
this will be more noticeable in areas where components really heat up
(discoloration on PCB)





Hi, I have had my pioneer rear projection tv for about ten years now,
not many hours of use. Just yesterday it turned off by itself and will
not turn back on. If I unplug it for a few seconds and plug it back
in, It will power up then shut off about 1 second later, sounds like a
relay is dropping out or something. Does it sound like a power supply
problem?...Anything else I should check?....thanks rick