20 Most Recent Yamaha YST-M100 Computer Speakers Questions & Answers


Capacitors worn or othrcircuits

Yamaha Audio... | Answered on Nov 30, 2018


Protect mode usually is entered as a result of component overload or failure. There is no "code" to fix it.

Yamaha Audio... | Answered on Nov 27, 2018


Yamaha RX-V650 won't power on - Service manual, repair and unlock ...

forum.eserviceinfo.com/viewtopic.php?t=59945
10 posts - ‎6 authors Posted: Sat Aug 29, 2009 1:26 pm Post subject: Yamaha RX-V650 won't power on ... When i came back from a holliday, my receiver won't power up anymore. .... isn't powered (no voltage on the base) when the receiver doesn't comes on.

Yamaha Audio... | Answered on Nov 27, 2018


THE ANSWER (TO MINE AT LEAST) IS HERE:

As a safety precaution, when the protection circuitry operates 3 times consequently, the capability to turn on the power is disabled.

Solution (according to Yamaha service):
Plug the power cord out. Plug it back in.
Press the following three buttons at the same time for 5 seconds: Main Zone + Info + Tone Control
The receiver will open.

Yamaha Audio... | Answered on Nov 27, 2018


I've had the same learning experience!

Yamaha Audio... | Answered on Nov 26, 2018


I am not surprised!
You are trying to connect a very modern TV to a receiver that is very old.
The modern TV has no RCA audio OUT connections. Nor does it have a coaxil OUT socket.
The RCA sockets on the back of the TV are all "IN" connections. The audio out is an optical and the old receiver doesn't have an IN for it!
You can get an HDMI to RCA lead. This would provided the sound of the TV.
However personally I would sell the old receiver on E-Bay and buy yourself a more modern one with HDMI connections and a Dolby sound system to match.
If you can't afford a new one there are plenty of good secondhand ones on E-Bay.

Yamaha Audio... | Answered on Nov 26, 2018


First check all you speaker wiring and connections for short circuits and bad connections. Also check the speakers are working correctly.
If that doesn't correct the problem, then it's probable that an internal fault has developed in the main amp section. Till that is fixed then the amp will continue to shut down.

Yamaha Audio... | Answered on Nov 26, 2018


I think it's more likely to be a speaker settings issue. Channels are rarely individual fused these days. Generally anything strong enough to take the fuse out would kill the power to the whole unit. Speakers also tend to have protection circuits, but again these will nearly always stop all channels workings.
Most of the these multi channels systems have the ability to have speakers switched on or off, as well as adjusting the levels for them. If you read through the user manual you should find a way of activating the missing channels.
If you have lost the user manual, try looking on the Yamaha website. They should have a free PDF of it.

Yamaha Audio... | Answered on Nov 26, 2018

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