Trying to find faulty connection

[jokerswild]

Just been handed a Sony reel to reel tape deck to repair. Somewhere theres a dodgy connection as when the circuit board is moved the sound goes on and off. Whats the easiest way to track it down?

Si

 

[Nigel Goodwin]

By tracing the signal, and finding where it's disappearing.

A very common fault with tape recorders is the record/play switch, it could be as simple as that is dirty or worn - try gently moving the switch and see if that causes the fault.

 

[jokerswild]

Thanks Nigel! Recently got an oscilloscope and this could be my first job with it!