Question about Yamaha RX-V461 AV Receiver
My Yamaha AV Rx-V461 bought just 9 months back. It was working absolutely fine even during summer when lot of overheating happens then it never turned-off itself. But surprisingly, 3 days back, in this cold weather, without much heating, after playing continuously for 1 hour, it suddenly turned-off by itself. There was no burning smell or spark or anything unusual which could be observed. Even after leaving it off and unplugged for several hours, 3days, it is not turning on. As per its manual, for any reason if protection circuit is activated then system should be unplugged for 30 secs and then it can be used normally. But this has not happened. I was happy to assume that there must be a fuse behind which would have blown, but shockingly there is none.
can anybody help?
These have regulator ic issues, Mainly the regulators for plus and minus 5 volts and 12 volts. All can be checked off the main connector coming from the top regulator board. Lately I see alot of theplus or minus 12 volts go bad. When one fails a plus 12v may read 9 or 10 volts only for example.
Posted on Jul 21, 2009
Most units have a 1 year warranty, so be careful in opening up the unit. That being said, the protect message indicates that there is a problem in the final output stage of the amplifier. This can be as simple as a poor connection at the voltage regulators that will force the unit into an offset condition or more complex like shorted output transistors. and drivers. Since this unit is still relatively new, I would suggest that you investigate its warranty status first. Let me know what you intend to do.
Posted on Feb 19, 2009
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Posted on Jan 02, 2017
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