Hi All,

Have a Dr Who with Mini PF not working at all during mini pf test or gameplay. Things i have done:

Completely stripped and cleaned mini pf

Use 12V battery, mini pf works fine when connected to this, moves smoothly

Swapped CPU with known 100% working one - same issue, Mini pf does not work

Swapped Power Driver board with known working one - same issue, Mini pf does not work

Swapped Motor driver board with known working one - same issue, Mini pf does not work

Triple checked connector plugs to and from motor driver board

Continuity from motor to motor driver board is fine (although i when i put one lead on red motor wire, it gets continuity to both red and black on motor driver board)

Fuses all test good (tested out of machine)

Home opto on mini pf works fine in switch edges

Playfield glass switch is fine, and i push this down during testing

All other functions of mini pf work (kickers and flasher)

This was a machine left in storage for many years, so i have also cleaned the whole machine down - it did actually work a couple of times when i first put it all back together.

Only other strange one i could think of was maybe a dodgy ROM?

Any ideas as i seem to exhausted all possibilities....

Thanks

Rob

Also, i have 20v going into the motor driver board