I need some advice trouble-shooting an analog circuit on a four track cassette recorder. There is audio output from the cassette playback head but once the signal enters the PCB board it does not come back out like the other three channels. Mostly all I see on this PCB board are capacitors and resistors. I see no damaged or blown out components.
How do you trouble-shoot the components? ESR meter for the capacitors? Oscilloscope for the circuit?
The machine is an AMR MCR 4 made by Peavey back in the late 80s.
