"DaveC" wrote in message
obal.net...
Pioneer PDP-V401 40-inch plasma will run OK for hours or minutes and then
turn itself off. The warmer it is the shorter the period. Only cycling the
power switch will restore function. (It doesn't power on automatically
after
cooling.)

The unit seems very much *not* overly hot when it powers off. I'd say it's
well within operating temps.

I can't watch it always, but the displayed image seems to be OK.

Does anyone have experience with this or similar Pioneer plasmas (or
access
to the service manual) that can say what triggers the auto shut-off? Is it
PS
voltage fluctuation? Or heat?

Suggestions?

Check for Bad Capacitors on the power board. On some cheaper units, I've
seen them blown. On the better units, the capacitors do not blow up, but
start bulging. Check out Badcapsfourm.com for more info.