I got mine virtually new from a fellow Shakster. He used it for a couple of weeks but could not deal with the quirks. He bought it new when the price first dropped at A4L.
Well when installing the +6dB file it gave the "completed" message. I seem to recall a way of checking if it was actually installed but I can not find the post with the instructions.Are you certain that the +6db file has truly taken it did not go the first time I tried. Also what level do you have the sub set at on the sub it's self.
Yes on the reset (unless there is another unpublished reset I'm not aware of)... I agree about the HDMI board and since the second has video was hoping I could open up the cases and swap the HDMI board over to the first. It's easy enough to get into the case, even remove the screws in back to loosen the board. The issue is the connectors.. There is a bridge connector across from the HDMI board to the board with digital audio inputs that I REALLY didn't want to force.. there are a couple of ribbon/flex cable connections where I can't seem to find an "unlock" mechanism.. I'm not a novice at inside electronics, but there are just some things inside this puppy I'm not familiar with..Well, I would guess that the first one has a HDMI board failure. The second one not so sure. Have you tried doing a full reset on both receivers?
This is how you do the reset ^^To reset the R-972 to factory settings:
Once in Standby Mode, press and hold down the STANDBY & MEMO/ENTER buttons simultaneously for at least 3 seconds. This will reset the unit and it will turn on automatically. If the reset was successful, you should notice that the receiver powers up at 87.5 FM .