I have a HTR-5140 stereo receiver 6 years old used very little. Last time I turned it on after two seconds I heard a click and it turns itself off. No fuses that I know of accesible from the outside?? Any ideas Thanks

https://www.manualslib.com/manual/197485/Yamaha-Htr-5140.html?page=45

Maybe. Clearly something blew up. Diagnostic time costs money. Then there are parts and labor.

You can get a new one on ebay ending tomorrow for as little as $140 delivered.

http://cgi.ebay.com/Denon-AVR-2105-stereo-receiver-/220774248046?pt=Receivers_Tuners&hash=item33672bae6e

http://www.retrevo.com/support/Yamaha-HTR-5730-Receivers-manual/id/1075bh230/t/2/

Page 52

1 Hold down STEREO on the Front Panel
"Factory Preset" appears on the front panel
2 Press STEREO to select the desired setting.
'Reset' To reset to factory presets
'Cancel' to cancel without making changes
3 Press STANDBY/ON to confirm your selection

I am sure you have tried and disconnecting all the speakers and taking the unit to another outlet right? If it works you fried your surge and need to replace it. Otherwise the unit went into that strange power protection mode

Shutting off before the safety relay clicks means there is a problem with one or more audio output channels. Time to see a service center. There is little that can be done without a tech...

I solved the problem by ensuring the Impedence selector was either all the way to the left or all the way to the right, as instructed in the manual.

The clicking is the sound of a bad relay. A relay is an electrical switch that opens and closes under the control of another electrical circuit. There is no user solution for this. You'll have to take it to an electronics repair shop (~$150) or dump the whole unit.

MichaelM
Did you ever get this resolved?  I have a similar problem, my video feed seems to work but I have never been able to get any sound from my speakers using this component.  I'm not sure what YPAO setup is but I just read a suggestion to reset the receiver to factory settings in the event something is programmed that causes the problem.

I JUST EXPERIENCED THE SAME SITUATION HERE IS THE SOULTION YAMAHA SENT ME TO RESET THE SYSTEM HTR-5990 YAMAHA HTR-5990 FACTORY PRESET PROCEDURES All models require the STANDBY/ON button to be turned OFF to start the reset process. NOTE: The remote control cannot be used during the reset procedure. All necessary buttons to complete the reset process are located on the front panel of the receiver. This procedure is not intended to correct intermittent shut-off symptoms or problems MODEL: HTR-5990 (U.S.A. model/s) (BEFORE YOU CONTINUE, PLEASE READ THE ABOVE NOTES!) 1. Before you start this procedure, locate the MASTER ON/OFF button and the STRAIGHT/EFFECT button on the Front Panel of the unit. 2. MAKE SURE THAT YOUR RECEIVER’S MASTER ON/OFF HAS BEEN TURNED OFF. 3. With the Right Hand, press and hold the STRAIGHT/EFFECT button. With the Left Hand, press the MASTER ON/OFF button and HOLD both buttons for no more than “3” SECONDS, AT THE SAME TIME. SP IMP. * 8 MIN. will appear on the display, which indicates you are in the Diagnostics Mode. 4. Rotate the PROGRAM KNOB to the right (ONCE) until the display reads PRESET *CANCEL. 5. Press the STRAIGHT/EFFECT button (ONCE) and the display will change to PRESET RESET. 6. Turn the unit off by pressing the MASTER ON/OFF button. 7. Wait 5 seconds, then turn the unit on by pressing the MASTER ON/OFF button. You have now reset your component to the factory settings. NOTE: Yamaha receivers don’t have to be reset during normal operation. It is not recommended that you reset the receiver unless a setting has been changed that you are not aware of, or the receiver is not operating properly. The reset procedure will clear an incorrect setting that might be causing abnormal operation. GOOD LUCK