When the start button is pushed, it does not play.  When the roll
is manually advanced and released, the drive will rewind and stop as
it should.  I don't see the motor turning at all when play button is
pushed.  I don't have a schematic but I suspect the culprit is one of
the three relays K1, K2 or K3.  Does anyone have an idea about this?
If it is the relay, does anyone have a part number?

Scott Wymer