snipped:
"Bernhard" wrote in message
My Yamaha RX-V795 receiver shows a strange behaviour.
After switching the device on, it shuts down immediately
or after some seconds or after a longer period of time,
sometimes after 1 or 2 hours.

This often happens when I inadvertently bump against the
rack on which the receiver is located - but it also happens
when absolutely no mechanical vibrations are present.
Bernhard
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Bernhard:
Regarding the symptoms you described, "buying the service manual and
disassembling the unit" is not going to fix the problem nor will the service
manual offer you specific suggestions and procedures for repair.... the
service manual is only most useful to knowledgeable and experienced
technicians who probably can fix the equipment without the manual..
What you described is most likely, as the previous reply post by "Dan"
correctly stated, caused by faulty solder connections and/or possibly
intermittent connectors. This is a routine repair at most service shops
that most likely does NOT require the hard to get and expensive service
manual.
As "Dan" suggested, at the very least take it to a service shop for a repair
cost estimate..... so you can make an intelligent repair decision with facts
instead of guesses. If you take it to the shop AFTER aborted or failed
home repair attempts, or after continuing to operate the unit with this
problem until it gets worse to the point it won't work at all, the repair
shop price will certainly be much higher.
--
Best Regards,
Daniel Sofie
Electronics Supply & Repair
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