"Michael" wrote in message
...
In article , "Nigel Cook"
wrote:

The right voltage to this motor but it is lacking torque...

Sony has had this problem with reel motors in many of their machines,
including DATs and camcorders. The only fix I know of is a new motor. I
think the permanent magnets get somewhat demagnetized over time, but
anyone can feel free to correct me on that.

By the way, I once owned a DTC-690, and I wouldn't recommend putting much
money into one. They are very poorly made and have a lot of problems,
especially tape transport problems. They sound good when they work,
though. There was an update kit that fixed some of the transport problems,
so maybe yours has it installed, in which case it might work OK. I hated
mine, though.

Many thanks for the input. I could only think of the bearing problem
often seen on capatan spindles where there is just too much play
and at certain speeds brakes itself. I never thought of loss
of magnetisation. I agree about the mechanics ,while in there ,
i made a filler piece to retract the take-up side sliding
guide fully up against its tape-retracted position.