Electronics repair (older kenwood amp)

[SideShow Bob]

If you can get the schematics and parts list with numbers, the only real challenge is if the parts are still available.
Most times, it is the final power amp transistors or SIM’s that blow or burn up in the older tuner/amps.
I used to repair them as a hobby a long time ago when the parts were plentiful. But I no longer have access to all the equipment to do the circuit tracing to confirm which component that has actually gone bad.