Sir Darryl . . . . .
Your problem should be that your shorting out of the motor, caused R700 . . . which is a 0.1 ohm 1/4 w film resistor . . . being used as a fusible resistor . . . . to open up, and is now leaving the ground leg of the D702 full wave bridge rectifier to be floating above ground.
Therefore . . . . . no 11VDC is getting to your motor circuitry to run it.
Wire in / clip in, a voltmeter across C704 to be able to read the emitter of Q702 regulator transistor .
Then power up and then take the new resistor and just make a 1-2 second, brushing against connection to see if an expected 11 VDC shows up . . . OR . . . if an unregulated 20VDC shows up.
If 11VDC appears you are in business to wire in the new R700 and fully try out the deck.
IF . . .20VDC . . . .expect Q702 or Q 703 to having crunched Collector to Emitter . . . and needing replacement.
Thaaaaaaaaaasit . . . . .
73's de Edd
......................
The next time when I go to the ATM, and just after the money comes out, I'm going to
jump up and down, then flail my arms wildly about flashing the money and finally, shout out, for all to hear.
"I won!" "I won!" . . . its the 3rd time this week ! ! ! "
. . . . . . Copywight 2018 . . . . . by Elmer Fudd. . . . . . All wights wesewved. !.