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T2 Plunger Solenoid (9) Issue [SOLVED]
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Question
LAP
I am trying to fix a mates T2 which has an issue with the plunger coil locking on as soon as I turn the machine on and then the F103 goes poof.....
So I replaced the fuse and unplugged J127 and all worked except for the solenoids associated with J127.
Next step was to remove wire J127-1 (plunger solenoid 9) from plug J127 and plug it back into the board..... all solenoid worked except plunger.... so was sure it was just a blow transistor so checked Q58 and sure enough it had blown....
Feeling very smug I replaced transistor Q58 and pre-driver Q57 thinking I was going to flick the switch and all would be good... after turning on the machine no locked coil but pinball can be cruel.... as soon as I ran the solenoid test for solenoid 9 poof went both fuse F103 and my smug confidence....
Back to square one as now when I turn on the machine the plunger solenoid locks on and blows the fuse....
Other things I checked....
I am going to obviously replace Q58 & Q57 again but looking for other suggestions to check before doing this all over again....
Jason
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