HP 65 Card reader task

[jftman]

I have tinkered with adjusting the leaf springs on these so equipped. I located 4 relative pads 14,9,8, and 7 are their traces where a multimeter can check for continuity and open circuit.
I would tighten slightly the silver screw to lift the spring endwise contact.
Putting in a card and looking for continuity says the pads are connected to the full plate with position 14 as a reference.

I have expected readings but the motor still does not start? The motor runs good with a battery applied between the motor terminals. Good motor.

Of note however is that the 0.00 display does NOT blink at all when a card is pushed up into the roller. I just hear a little ‘pink’ sound that could be the leaf spring spring doing it’s thing. The sound is once in and once when the card is retracted.

I hope there are other tests I can perform.

Can someOne fill in more traces to investigate?
The 4 I measured are the motor activation 9, read and write 8,7 and 14 center which is the plate. Not sure more exactly what it does.
But there is another pad not leading to the lower PCB for testing as I am doing.

I have other working HP 65's to swap boards. I would like guidance as to what may be done to trigger the motor......Regards James. Pics attached