tread mill will not operate?

Do you supply the spare pcb for a ROGER BLACK. COMPACT TREADMILL AG-11306.
IF SO could you let me know the price in view of me ordering it.
I've tested the circuitry for continuity and it's OK.
Display panel function's on pressing .safety key isolates and engages power on removal and insertion.
Jumped a 12 volt DC VOLTAGE direct to the motor terminals and motor works perfectly.,that was done by bypassing pcb thyristor speed control board.
So I've concluded that the pcb has broken down and inoperative.
Look forward to your response and thank you.