Re: Denon avr 2802 with no sound on speaker
update: 3/2018: Finally Denon AVR-982 (same as AVR-2800) is working after replacing the DSP.
After replacing the Flash, the DSP program memory download was completing. However, the when the DSP CPU attempted a Read from the DSP (via SPI bus) the DSP IC did not reply. This made me suspect that the DSP was bad.
I ended up replacing the DSP chip (Cirrus/Crystal CS493292-CL) and that fixed the issue. The Denon AVR-982 is working (with the Macronix replacement flash which I programmed as described earlier).
I bought the DSP IC off eBay.
https://www.ebay.com/itm/1-PCS-New-C...p/263355647333
Attached some photos with new ICs, OLD DSP, and showing all of the Debug probe wires before I removed them.
update: 3/2018: Finally Denon AVR-982 (same as AVR-2800) is working after replacing the DSP.
After replacing the Flash, the DSP program memory download was completing. However, the when the DSP CPU attempted a Read from the DSP (via SPI bus) the DSP IC did not reply. This made me suspect that the DSP was bad.
I ended up replacing the DSP chip (Cirrus/Crystal CS493292-CL) and that fixed the issue. The Denon AVR-982 is working (with the Macronix replacement flash which I programmed as described earlier).
I bought the DSP IC off eBay.
https://www.ebay.com/itm/1-PCS-New-C...p/263355647333
Attached some photos with new ICs, OLD DSP, and showing all of the Debug probe wires before I removed them.
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