I have just replaced the two belts within my Beocord 5500 and powered it up. Both belts seem to be doing their job. When I press Play, FF, RWD & Turn on the main keypad the cassette transport mechanism does what one would expect, and the tape goes in both directions. If I press the Play button on the fascia it starts and stops. (The drive pins continue to rotate for ~4 seconds). But ... if I press Stop on the main keypad, whilst the tape mechanism stops & the pinch rollers retract, the drive "pins" do _not_ stop rotating, unless I press Play on the fascia twice, and/or turn off the power. So it looks like the Stop button on the control panel is only activating the head & pinch roller retraction, and not stopping the drive motor. I have undone & re-seated the ribbon cables, & I am 99.9% sure they are good. I never needed to remove the ribbon cable that goes to the main control panel, so I can't see how I could have mucked that up. Any ideas? Whilst I have downloaded the Service Manual, interpreting the electrical diagrams is beyond my pay grade. Many thanks!