Post by dsenela on Jun 22, 2023 1:14:38 GMT -5
I recently got my hands on this unit (used). It powers on fine and everything appears to work correctly except, I can only get sound from one channel (surround back). The rest of the outputs are silent. After trying out all the basic troubleshooting methods (reset, settings etc) I have started to suspect the cause to be the infamous onkyo HDMI board DSP issue.
However a few questions:
- This being a pretty recent receiver (2021), I had assumed HDMI board DSP issues affected older units with defective chip and problem had been resolved for newer units.
- Can the faulty HDMI board affect ONLY some channels? I would assume all channels would be affected.
- I can hear relays click on startup and it shows the speaker layout diagram correctly on front display, further I can hear relays click as I change through different speaker formats (stereo, 5.1 channel, etc)
This being a newer receiver, I cannot get service manual anywhere (and, yes it is out of warranty).
I would really appreciate any help or thoughts on weather my diagnosis is correct or the issue lies elsewhere. (I am truly hoping it is not DSP issue!)
Thanks!
However a few questions:
- This being a pretty recent receiver (2021), I had assumed HDMI board DSP issues affected older units with defective chip and problem had been resolved for newer units.
- Can the faulty HDMI board affect ONLY some channels? I would assume all channels would be affected.
- I can hear relays click on startup and it shows the speaker layout diagram correctly on front display, further I can hear relays click as I change through different speaker formats (stereo, 5.1 channel, etc)
This being a newer receiver, I cannot get service manual anywhere (and, yes it is out of warranty).
I would really appreciate any help or thoughts on weather my diagnosis is correct or the issue lies elsewhere. (I am truly hoping it is not DSP issue!)
Thanks!
