Pioneer projection tv not powering up
 

hello,

i have a 10 y.o. Pioneer 40" rear-projection tv that is suffering from
the following symptoms: images become vertically compressed within a
few minutes of powering up, then settle back to normal screen size.
This would go on for some time until finally the images fail to go
back to normal size and the tv shuts down, and would not power up.
Then miraculously, a week or two later, it would power up again and
everything would be fine again...

is it time for me to get a new tv or is it reparable?

thanks,
brandon

los angeles

May want to remove the power/defelction pcb and go over it throughly with a
soldering iron. These sets are renown for poor solder connections. while in
there it may be wise to run an esr meter over the caps in thepower and
deflection circuits.
"Wolfy" wrote in message
m...
hello,

i have a 10 y.o. Pioneer 40" rear-projection tv that is suffering from
the following symptoms: images become vertically compressed within a
few minutes of powering up, then settle back to normal screen size.
This would go on for some time until finally the images fail to go
back to normal size and the tv shuts down, and would not power up.
Then miraculously, a week or two later, it would power up again and
everything would be fine again...

is it time for me to get a new tv or is it reparable?

thanks,
brandon

los angeles

If the problem is gradual, it is more than likely some bad caps in the
vertical deflection circuit. An ESR meter is required to test these, or just
replacing all of them would be also not a bad idea in a set this old.

If you do an ESR test of all the caps on this type of set at this age, you
will find many caps that are starting to go high in their ESR rating.

--

Jerry G.
==========================


"Wolfy" wrote in message
m...
hello,

i have a 10 y.o. Pioneer 40" rear-projection tv that is suffering from
the following symptoms: images become vertically compressed within a
few minutes of powering up, then settle back to normal screen size.
This would go on for some time until finally the images fail to go
back to normal size and the tv shuts down, and would not power up.
Then miraculously, a week or two later, it would power up again and
everything would be fine again...

is it time for me to get a new tv or is it reparable?

thanks,
brandon

los angeles