QUADRAL QE120 service manual needed

[catd]

I got this QUADRAL QE120 Amplifier for service (it's a PA, mixing, ELA-/100V-device).
The manufacturer in Hannover/Germany could only provide an "operation manual pdf",
but no circuit diagram, assembly plan etc.
Can someone provide a link or lead me anywhere I can get this?

 

[Tarzan]

Give it a try:
https://www.jh-elektronic.de/
There is knowledge about Quadral.