i recently bought a pachinko that was `faulty`, did not fire.
on inspection, it is missing a dongle and the opti sensors are lacking a bridge as mentioned by pinball dave.
I have ordered the parts to make a dongle and they arrive on monday. but impatience has got the better of me, and i really want to get it firing, since i dont have a multi meter either, can i just try bridging each opti sensor and see if it works? does anyone know if I can cause permanent damage doing this?