The sound completely fades during commercials on some channels. And on other channels, the sound is just gone!!!

the SAP is activated

Make sure your speakers are plugged in.

there may be a cluster light adjuster some where on drivers side of dash board. may find that during the time of driving you knee has been turning it which is causing it to fade out.

your SAP is turned on commersial do offer SAP

Your HDMI version software and hardware will not work with todays version. The current version 1.3b is what works correctly (so far) IT can be upgraded to todays specs however, it's a preicey task for minimal gain if you are viewing any TV smaller than 50". The human eye cannot see the difference between 720p and 1080p on any TV 50 or smaller. That being said, if your TV has multiple HDMI ports, you can sidetrack this issue by connecting directly from the source, ie DVD, BLURAY, etc. then use optical or coaxial digital coaxial to the receiver. I know it's not the best news!! don't Blame Yamaha! it's been the recording industry and copyright protection issues that have overloaded product with "anti-piracy" software to the point you can't view it!. All receivers prior to 09' have multiple HDMI issues. Also, try setting your receiver to "Auto" in audio and running an analog RCA from the source to the receiver as well as HDMI, it may help, however, analog is much louder than digital, and I'm not sure if you can "offset" the volume level for analog in that receiver's settings. So, when you go to a commercial it could be unbearably more annoying than not listening to the commercial at all! Hope this helps.

it sound as if the front speaker channel has gone out. You could try disconnecting the power to the cd player, wait 5 minutes and hook it back up. Also, you could try adjusting the fade control from front to back and see if you get any sound, but it really does sound like the channel has gone out

The sleep timer may be set to fade and a short time span.

shut off the all BBE and surround and the AL sound page 27 of the manual.

your headset wires are the antenna of your phone... be sure to let it loose freely to avoid the frequency fading... dont fold it...

You'll need to set your audio options to back to normal, not SAP...accordianman