Quoted from FarleyFinster:The Test Points are another matter: most are zero (?!) save for TP1 which is disturbingly high at 15.3 ±0.2.
That is 12 unregulated and yes it normally runs that high.
Please measure and report the exact voltages on the power driver board other than TP1, which you already mentioned. Also, measure the 5v at C31 on the MPU. Best to wedge your black meter lead under the ground braid wire so you don't have to hold 2 meter leads.
Make sure you leave the coin door closed, otherwise, the coil and flasher voltages will be shut down for protection if the door is open.
Pleasant Hill, MO
Auckland, NZ
