Yamaha RX-497 won't turn on. A power surge may have caused the problem. A friend who was at home at the time reported a power problem, and the receiver turned itself on, and then off, never to go again. When On/Off is pressed, the relay doesn't click, and nothing, even the devices connected to the switched outlets, turns on. The 2 fuses on the Main 2 board are OK. No burned-electronics smell evident inside.

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.

check ur speaker wires, try disconnect all wires from back of unit and then try to turn on unit .
if it stays on whit no wires attached than u have short connection at speaker wires .
if doesn`t come on then try to fasten screws at back of the unit ,
may sound like BS but if amp board don`t have good ground connection it can go in protection mode happened to me on RX-V592

Hi George,

Here is something that you can do , or have someone to assist you.

Disconnect all speakers.

Power it On, If it turns On completely , Be glad.

Put back speaker one at a time to find the cause.

If for instance , it doesnt work ....


It may need servicing.

Let us know what you find out or post back if you feel you can DIY.

Good luck!

A remote for a dish,Will not work on home audio (Equipment)

those pianos work forever probably the power cord.

This may be a relay problem, could be fixed for under 100.00 this is a normal problem for this unit.http://www.nextag.com/yamaha-home-theater-system/compare-html

Most likely, one of the channels is blown, or you having power supply issue. It is hard to determine exact cause of the problem with out looking at the unit.

Hey, yeah that can be frustrating.

When you turn it up do you hear the relay or a clicking sound, then you turn it on and it comes back below the +2db?

Try unplugging All the speaker wires from the unit. Turn on the unit and listen for the click.
after the click, turn it up past the 2+ db mark and see if you hear it click or shut down. If it did not click off, then suspect a shorted crossover on one of your speakers.
2nd test is to plug in One speaker, and test it at high volume, it will not harm it. If it shuts off disconnect that speaker and try another. Only one at a time.
If it works at high volume, you need to isolate one of your speakers and i bet it has a shorted crossover that has been cooked. P.S. If one is bad, suspect they will fail at a later date.
If they all fail, use a friends speaker and try it before sending it to a repair shop.

P.S. i found one on ebay i think you can get for under $100 bucks in the box.

http://cgi.ebay.com/Yamaha-RX-V1400-7-1-THX-Select-Receiver-MINT-Condition_W0QQitemZ330311512027QQcmdZViewItemQQptZReceivers_Tuners?hash=item330311512027&_trksid=p3286.c0.m14&_trkparms=72%3A570|66%3A2|65%3A12|39%3A2|240%3A1318

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