My Yamaha htr-5990 7.1 receiver has developed a 60hz hum which is equall in all speaker outputs. The hum is present with nothing connected to the receiver except speakers and is completely independent of every setting change. I believe I have a bad filter capacitor on the power supply. I have identified two large 71v 12000 microfarrad capacitors which I suspect are failing, however there is no physical evidence of damage. How might I confirm that replacing these would solve the problem and where might I purchase such capacitors? Thanks.

SOURCE: Yamaha HTR-5990 Receiver

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

SOURCE: yamaha htr-5990 Reciever powers on

Hi larryavent

The unit is going into protection mode. Check you speaker cabling and connections for short circuits and frayed ends. Best way to test for speaker or related problems is to disconnect the speaker wiring from the amp and try again. If it still has the symptoms with no cables connected then it will have an internal fault. Unless you have experience with this type of gear, there is not much that is user serviceable inside. A trip to a Yamaha Service center may be in order.

regards
Graeme

SOURCE: Yamaha HTR-6130 Front right and left speakers with no sound

As simple as this sounds, try hitting the speaker a/b button on the front of the unit, next to the headphone jack. I had the same problem, and was about to package the whole thing back up and go back to Best Buy when I hit this button and then the audio test worked.

SOURCE: Audio keeps cutting out intermitenly on my

Is it going into protect mode???
If so, check your speaker connections. Make sure there are no loose copper wires hanging out, and that your splices are clean at both the receiver and the speaker.

SOURCE: no compressed audio on hdmi

You probably need to take that issue up with the setup of the unnamed device originating the signal.