Hello my nascar garage kick out coil locked on and burnt up so I replaced the coil q6 and fired it up and it locked on as soon as I powered up again. Then I changed the q6 driver with some change. Now when I fire it up the VUK for the trough locks on which is q8 and q6 still locks up. Theses drivers are side by side on the board The driver board looks spotless. Not sure where to go or check next. Any help would be appreciated
Groover88 have a look at the Pinwiki: https://www.pinwiki.com/wiki/index.php?title=Sega/Stern_White_Star_Repair#Solenoid_problems
Note section 4.4.3 about replacement transistors.
Let us know how it goes.
Thanks for the response YeOldPinPlayer I just ckd out your reference. I’m starting to think its u1 I checked for continuity from the transistors tab to ground on all the transistors that are driven off of u1 and I’m getting varying reading but def have continuity from the tab of the trans to ground. Would u1 being bad cause the transistors to read that way?
Wanna join the discussion? Please sign in to reply to this topic.
Great to see you're enjoying Pinside! Did you know Pinside is able to run without any 3rd-party banners or ads, thanks to the support from our visitors? Please consider a donation to Pinside and get anext to your username to show for it! Or better yet, subscribe to Pinside+!
This page was printed from https://pinside.com/pinball/forum/topic/nascar-coil-lock-up-issues- and we tried optimising it for printing. Some page elements may have been deliberately hidden.
Scan the QR code on the left to jump to the URL this document was printed from.
Black Mountain, NC