Yamaha rx-v650 wont come out of standby, fuses ok switchmode ok no display at all fault pointing towards microprocessor problem.

To perform a factory reset on a Yamaha RAV 352 remote for use with an RX-V2500 receiver, follow these steps:
1. Turn on the RX-V2500 receiver using its power button or remote control.
2. On the remote, press and hold the "VCR 1" and "ON/STANDBY" buttons simultaneously. Hold both buttons for about five seconds until the remote's indicator light blinks twice.
3. Release the buttons. The remote control should now be reset to its factory default settings.
4. Test the remote by using it to control the RX-V2500 receiver. Make sure the remote is within range and pointed towards the receiver's IR sensor.
If the factory reset doesn't resolve any issues you're experiencing with the remote control, you may need to try replacing the batteries or consider getting a replacement remote from Yamaha or an authorized dealer.
Please note that the steps provided are based on general instructions for Yamaha remotes, and there might be slight variations in the specific procedure for your RAV 352 model. Consulting the user manual for your specific remote or contacting Yamaha customer support can provide you with more accurate and detailed instructions tailored to your device.

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.

if unit has a no power fault the fuse is prob ok and unit is in protect due to fault or has a blown thermal fuse in mains transformer

There is a Microprocessor(computer) that controls the display. This Micro can be bad, the display can be bad, the connections between the two, as well. For more information, please visit my website at audioserviceclinic.com. Thank you.

yes it is

i had a real nice yamaha natural sound receiver and the relay that switched it on went bad a lot..... try the relay???

Check the internal fuse inside the unit. If it goes again, after replacement, get back in touch with us. If OK check the transformer and the power switch.

Sounds like the stanby transformer has gone.
This is the transformer that turns the main transformer on and powers up the unit.
Cant be certian though, could be a host of other things.

check the standby power supply first and then the main power supply.also check the output transistors and fuses your problem is in one of those points, normally the standby transformer goes bad, it is the small one right next to the big one.
good luck

You've probably already tried this, but...

Disconnect power from the mains, remove lid.

Reseat all the low-power connectors in the unit.

Check the thermister on/near the main transformer.

Check capacitors on or near power supply for obvious anomalies (fattness, leaking, smoked, etc.)

Replace lid and, plug back in, do a rain dance and hope.