Problem with yamaha rx-c2092

Press MASTER ON/OFF on the front panel to
release it outward to the OFF position to turn
off this unit

Press and hold STRAIGHT on the front panel
and then press MASTER ON/OFF inward to
the ON position to turn on this unit.
This unit turns on, and the advanced setup menu
appears in the front panel display.

Rotate the PROGRAM selector on the front
panel to select "PRESET"
Press STRAIGHT on the front panel
repeatedly to select "RESET"

Press MASTER ON/OFF on the front panel to
release it outward to the OFF position to
confirm your selection and turn off this unit

might be problem with powersupply or firmware

This unit has 2 remotes, main and 2nd room remote.
Both are available with Remote.com
Click that link for price info.

it could be the problem with t108 transformer or with the power on relay circuit eg. zener diode

check powersupply or check the amp driver stage voltages

If you are sure that the speaker wiring is correct and connections are good, then:

• Check the input and output connections are correct for each source.
  
• Check that the input mode is not set to DTS or Analog - rotate the input selector to the source and the press the input mode, set it to Auto.
  
• Also check that the front speakers to be used are selected A or B (or A+B).
• If there is an optimiser microphone supplied with this receiver, ensure that it is not still plugged in.

Hope one of these solutions work for you.

I suggest you run self diag.  press [FM/AM] key + [Input mode] key and press the [power/standby] switch.

ps prt = power supply problem
dc prt = shorted output or leakly cap in channel
tmp prt means to hot on heatsink

you'll likely have to measure the resistances of the output FETs to find a short, 

I have had similar problems on a Denon. I suspect your DSP needs repaired and/or replaced. Need to contact authorized Yamaha repair shop or a competent local repair facility. I have a Yamaha RX-V2092 which is similarly designed. I have had it for 10 years. Hope this helps.

Sams Photofax has the paper service manual for $20.00 U.S>
No Efax downloads

This is the protection circuitry. Mine is doing the same thing. I'm trying to get a schematic for it right now ;-)

Jon