Hi,I would like to pick up here where tffer left off.my problem started yesterday when playfield power went off.found one problem ( thanks rolf).see pic.score motor 5th stack,( short stack,double blue wires and orange wire)bottom wire that connects to bottom lug on 6th stack broke off clean.typical williams age problem ( thanks EM pinrepair).now have power to playfield but kick out coil is exactly as tffer describes.weak.before problem I replaced switch and coil and everything worked fine( strong kickout).now weak.any help.again thanks Rolf for this thread.i hope to finish it with the correct diagnosis ( rolfs diaganosis)and repair.

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Hi,howardr.thank you for responding,and yes sir coil fired strong( NEW COIL).I will diagnose circuit and report back tommorrow.

Hi,Howard R.good news.when I ran the blue and white wire to 5th score motor switch stack ,I found problem.the switch was dirty.cleaned switch ,all is well.i got to admit though I was kind of intimidated just looking at your schem print at first.on other forums also you printed or drew. ( your way of teaching is clever).it made me do the thinking myself.im learning better how to read schems now and diagnose by the schematics.and to repair only what that problem is .I can't thank you enough.it also gives me better understanding of using a jumper wire from transformer ( which lug).again thank you guys for your expert diagnosis and proper repair procedures.Now does anyone know if whitish spots on contacts is a gap issue or is it contact age .(50 year old machines).i could swear I cleaned those a couple times already. guess that's another thread.

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