Always check the fuses - PinballHelp.com

[@brianperkins6121]

Another important subject people should look into and address is the unfused transformer to Bridge rectifer issue for people with early willams and dataeast machines ,, All Williams sys 3-7, sys9 and "most" of sys11 have unfused bridge rectifiers that should have a fuse added to each circut , allways check your early williams and dataeast games ironicaly upto and including the the game "Fire" all games released after fire have this issue fixed.. it is vitally important that you check perform this safety mod on all your Williams pins made from 1977-1987.

[@PinballHelp]

Good point!

[@petervandeveire7441]

Very good tutorial. Keep up the good work.

[@modeljetjuggernaut4864]

Welp tomorrow I'm going to replace my slow blue fuse. A 3 amp was put in where a 4 amp should be. And it's showing an open line on my multimeter. Could this b the reason why my mpu board isn't getting any power? (No led lights)

[@Roadsurfer2k11]

What was your issue? I have a pin with no power getting to mpu also. I suspect solenoid driver board but so far my transistors seem fine

[@billwilliams6338]

PINBALLHELP,,, 1.) I'm confused how the "home point switch" HP switch "knows" to rotate 3 or 5 rotations, how does the Home point switch know to only rotate 3 to 5 rotation turns before it returns to the home point? 2.) What kind of switch is the home point switch? its not a solenoid? 3.) If a ballball game has scoring points issues like if one of the pop bumpers says its 20 points but when you hit the pop bumper it only gives you 5 points or 10 points, what would be the problem? If the kicker says its 10 points but when hitting the kicker it only gives you 5 points or some other score number points, what would be the problem? 4.) The Score Motors rotating discs have steps that to give all the kickers, pop bumpers, targets their preset score points? if the score points are off numbers that means there is something wrong with the store motors rotating discs?

[@kreterakete]

Thank you..hugs from bohemian forest