Introduction
Find detailed service manual here:
https://www.manualslib.com/download/1360...
or ask author for pdf via Email.
Conclusion
Arbeite die Schritte in umgekehrter Reihenfolge ab, um dein Gerät wieder zusammenzubauen.
One comment
How do you open the amplifier, though? I cannot get it open even after unscrewing almost all screws.