What might be cause for my Yamaha RX-V1 receiver to lose sound? The light on volume dial is out, but remote works and registers volume levels on screen....possible fuse/chip issue?

SOURCE: Yamaha RX-V793 flashing light on volume control and no volume

Per Yamaha support page: The volume light on my Yamaha AV receiver is flashing, what does this mean ? The "MUTE" function on your remote control has been activated. The reason that you can still hear a very low sound is that the muting circuit within your stereo is not a full mute, but rather a -20dB mute. To deactivate the "MUTE" function, simply press the "MUTE" button on your remote control. (Make sure the volume control is turned down to avoid damage to your system.) If you misplace or lose your remote control, you will have to purchase a new remote control unit, as there is no duplicate function on the front panel of your stereo. Unplugging the stereo will not deactivate the muting circuit, as the microprocessor "remembers" if the muting circuit was active prior to being turned off or unplugged. If you need to purchase a remote control, you may order one directly from our parts office. You may reach them by dialing (714) 522-9888 from 8 am to 3 p.m. Pacific Time, Monday through Friday. If you have any other questions, please contact our customer service department by dialing (800) 292-2982 Monday through Friday from 8:00 a.m. to 4:00 p.m.

SOURCE: Yamaha RX-V800 Remote Control

Change the batteries

SOURCE: Yamaha RX-V800 volume knob on receiver not working.

It sounds like the volume control pod has gone bad and needs replaced (The knob shaft connects to the pod main body and the inside of the volume pod is what controls the rate of volume,If the inside becomes worn ,broken or dirty the volume will become erratic) Replace volume pod ! ..You may try cleaning by taking off the volume knob and getting a can of pressure air and blowing the dust out!
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SOURCE: Need Scientific Atlanta code for Yamaha Rx-V663 remote

043, 011, 003, 041,042,045, and 046

SOURCE: Problem is starting Auto Setup on my Yamaha rx-v463 receiver

You need to press the AMP button before you press the ENTER button. Always press AMP first when selecting menu, enter, any surround mode, or one of the amp functions in ORANGE above the green numeric buttons.

Got this from Yamaha.

BG