Clairtone 7980 stopped recording

[decks&cassettes]

I've recorded on it before and tapes came out quite good but now it just stopped recording
That includes deck 2 to deck 1
Radio and aux/phono just doesn't record
Plays great tho sounds amazing
What could be the cause ?

 

[Fatdog]

The first place I would try would be the record bar / switch. Clean with DeOxit or another contact cleaner. Then go from there.