You're currently viewing posts by Pinsider ignat.
Click here to go back to viewing the entire thread.
I also noticed some strange behavior with Doctor Who.
I have 2 Doctor Who machines, one with original Williams MPU, one with Homepin
During Video Mode when you collect the extra ball the Knocker will fire when you collect the extra ball on the homepin and not with the original board..
Go figure.
Quoted from rotordave:Are both machines running the same rom version?
Maybe swap the rom chips between machines, and see if one rom fires the coil and the other doesn’t …
Be interesting to see!
rd
Yeah same rom chips from what I can tell! I don't really want to swap them, I just had the Bally/Williams MPU out to repair a faulty diode!
Quoted from rotordave:Fair enough too.
The DMD should show the version number on the screen when you fire up the pin. Evidently two factory versions, L1 and L2. And maybe other versions floating around out there too.
rd
They both boot up with L2
Quoted from rotordave:Cool! Weird they are different.
Enjoy your bonus knocker sound.
rd
Do you have a Doctor Who rotordave ? Does it have the knock during Video mode?
It also does it during W-H-O Extra Ball
Its actually quite distracting during Video mode so I doubt its normal
Quoted from nerdygrrl:Restore both to factory settings. It is more than likely a difference in the settings. You can turn features like this on and off.
Its not a setting - they are both on factory
Quoted from Tuukka:Are the country code DIP switch settings identical? Some countries have the knocker disabled because electromechanical coin counter is connected instead of knocker. Set "coin meter units" in pricing adjustments to OFF.
Turns out you are a Genius. I dont think its because it disables the knocker - there is a programmed in game feature to allow it only in video mode using some combination when all the DIP switches are set to OFF.
My Original MPU (Hard Soldered DIPs) No Knock
IMG_1126 (resized).jpg
Homepin MPU Knocks
IMG_1128 (resized).jpg
Homepin MPU with the same DIPs set to ON No Knock!
IMG_1127 (resized).jpg
You're currently viewing posts by Pinsider ignat.
Click here to go back to viewing the entire thread.
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/homepin-williams-cpu-pcb-replacement-boards?tu=ignat 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.
