So I have had my AVR-2807 set up and working fine for the past few years. It is in a stereo cabinet, however, it stays cool and had never really been cranked to the point of any stress. It is the primary living room AVR for the TV, so just normal TV, DVD and gaming.
Then intermittently I started to loose sound occasionally over the past week or 2. Originally thought my kids were manually using the source selection or playing with the receiver.
A few times, just shut things down and let my remote macro get everything set up as expected. Sound would come back as expected.
Well TV and AVR were on the other day, I was in the hallway and heard a mild "snap" or "pop" though the speakers just as all sound dropped out. Had a feeling something not good just happened.
Tried to shut unit off and let it cool to room temp, turn it back on, no change. Also noticed that while I could change the video, the Volume as not responsive from either the remote or volume control. Although I had no sound, I could see the Volume level would not change.
I have started to search the Internet and there seems to be a number of cases where the AVR's in this era/family have lost all audio and many of the post point to a problem with the audio DSP chip or board. Some reference the Sharc DSP chip? Not sure if my unit has the Sharc chip, I have popped the top to inspect fuses, look and smell for damage(d) components, looked for leaking or bulged capacitors. So far, everything on the first look appears fine.
Anyone have any additional insight on this issue, issues with the DSP chip(s), I see the Sharc chip is located on the HDMI board after further investigation.