Denon AVR-2308: Issues with Standby, Distorted Sound & Tweeter Burn - DSP Module Suspected

If the volume level 1/3 starts with distraction and goes into standby. (Strong roar). If you reduce the significant volume you can start but a weak sound from the digital inputs, the powerful center distorted sine 16.6 kHz 20V pp is triggered on the center and surround outputs.
Because of this, he burned the tweeters in the center.
After the analogue (FM radio) normally plays.
I suspect something with the DSP module. Voltage pre-checked, I am waiting for the service manual. Maybe someone knows this fault?

Hello.
To start with SM
Greetings.

Thank you, I have the service. A fault on the DSP module, either the soft or soft in the flash, I sent to the DENON service.

The central service also could not do it, they said the same as I did that the DSP module was damaged, unfortunately not available anymore. However, I would like to try to fix it and therefore I am asking for a flash drive if someone has or could have it.
Module designations: 2223852101 1U-3852

Somehow I do not want to believe that they do not have all the modules and all the more dunks. It's not that old equipment. Nice to me "service central "

I repeat the request for a flash drive. Ein the whole module from disassembly.