I am using Akai GX 270D ss Quadfonic reel to reel tape recorder. Play back is good , When we press recording button relays are not activating inside. any body can explain about this Circuit.
the 280dss used microswitches behind the pushbuttons that can fail, or be highly resistive. This unit uses a type of slide switch that can get very oxidized. I would clean the entire bank of function switches because some of the function logic requires not only contact on the normally open side when you depress (like REC), but also requires continuity on the normally closed side of the other switches (like stop, FF, REW etc). Also, if it has bidirection record, (not sure), it will only record in the foward direction for 4 channel.
last thought. these units usually require that you press and hold record, as you press play, to go into the record mode
hi i got the same problem on the same machine...please answer if any knows...
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