scared stiff spider does not walk.
I already saw opto, and opto is good.
I entered the test menu and did the test of the spider but gave an error.
I bought a new engine and tried it, and it's still the same.
the engine I bought is the one that is on this link (http://www.pinball.center/en/shop/pinball-parts-by-game/scared-stiff/1573/stepper-motor-bally-/-williams) o motor did not walk.

I turned on the machine and measured the voltage on the motor connector that connected the board, measured on the four wires of the motor relative to the ground. and in two wires had 9 volts and in the other two wires had 2 volts

the wiring of the motor is as you can see in the image ?

IMG_20181021_193444 (resized).jpg

IMG_20181021_193523 (resized).jpg

thanks, ok opto is working
can you tell me if the motor connections are correct ?

problem solved was the engine malfunctioning