Yamaha rx 497 start but shut down after 3 sec
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.
SOURCE: Yamaha Receiver RX-V630 not working (resets itself immediately)
This maybe an easy one. Have you unhooked all the wires going in to the stereo. "SP wires" means you have wires to the speakers are touching and the stereo is shutting down to avoid overloading. Hope this helps...
SOURCE: Yamaha AV Receiver RX V2400 - Shuts off
I've been having the same problem for 3 months. Checked connections, sent unit out for repair (3x), contacted Yamaha (no help at all) and still the same problem. I've spent over $350 in repairs and I'm very frustrated. I think I'm going to just buy a new receiver (not Yamaha).
SOURCE: My Yamaha RX-V470 Kicks off after a couple of SEC.
Two possible problems , bad memory back up cap or weak voltage regulator.
SOURCE: How do I reset my yamaha receiver RX V463
Disconnect power cord to your receiver and wait about 3 to 5 minutes before do this step
If you can find on the back side of your receiver use to have a small button recess hidden behind the back cover, use a small paper clip push this this button.
Another way if you can not find the button, disconnect the power cord about 15 minutes may reset all your programs in receiver memory.
SOURCE: how do I reset my yamaha rx-v671 receiver?
If there is no apparent cause for the protection mode activating (such as shorted speakers, burning smell, blown fuses, lighting strike or mains power surges), reset the protection as follows and see what happens.
Connect power cord to mains and wait 5 seconds or so. While holding down "info" and "tone control" buttons, press "main zone" power button briefly and release, but keep "info" and "tone control" buttons pressed for at least 3 more seconds. The unit should power up. Assuming the reason for the protection has passed or been fixed, the unit can now be turned off and then back on with the "main zone" power button to restore normal operation mode.
If the protector activates again, the fault is still present and the unit needs to be repaired, ideally by a Yamaha authorised repairer.
There are dangerous voltages present in high power amps and a lot of grunt in terms of stored energy - best left to trained technicians.
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