OK, I'm going to try to look up the stuff. I'll get back to you.

mz



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"Joust" wrote in message
...
this has two power modules.
is there a way to detemine if one or both is defective?
i can get into it. don't be shy on technical gotta do's

thanks for your help.

"Mark D. Zacharias" wrote in message
...
The most common thing is a blown amp channel. Don't remember if yours
uses
discrete transistors or output IC's.

Pioneers for the most part have no direct access to the bottom of the
main
board. This would make a do-it-yourself repair rather difficult for most
people.

Mark Z.



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"Joust" wrote in message
...
I have this problem with my receiver. pioneer vsx-d409

unit turns on.

After a few seconds the unit flashes "poweroff" on the screen and
shuts
down.

switching seems to be fine, volume adjusts on the screen. the speaker
output
releays do not engage.

AC relay is turned on. I can read dc voltage on the two large bridge
rectifiers

I do not have a service manual so I cannot say if it the correct
voltage.

There is a fuse near the power amp section that gets no voltage. This
is
the
only thing I notice out of the ordinary.

One thing to note though. The fuse holder closest to the AC input was
bent,
so that the fuse was very loose. The fuse was ok but maybe it causes
spikes????

Any ideas?