(Topic ID: 203510)
Linked Games
Tales from the Crypt
Data East, 1993
Topic Gallery
You're currently viewing posts by Pinsider wayout440.
Click here to go back to viewing the entire thread.
Berea, OH
Quoted from wdennie:At this point, he can start a game but flippers don't work, ball launcher doesn't work, and the game apparently keeps saying "No payum, no gayum".
Is implying that the game is not set to free play?
Sounds like something it would say if you had no credits?
I was thinking the same thing - at first. It just sounds like there are some other problems.
Quoted from frunch:Looking at the schematic, it appears the cap at C4 is 18,000 uf. Is that a typo? Just seems like a really big value considering the size of the cap isn't that big. Not that there's necessarily a correlation between size and capacitance, just curious...
DE basically used the same design specs and a lot of the same parts as Williams pins. 18,000uf is the same in many Williams System 11s. You'll usually see the main +5VCDC filtering cap anywhere from around 11,000uf to 21,000uf on these pin supplies. Generally, I would advise staying within about +/-20% of the systems original design and not higher than 21,000uf. The result of higher capacitance is a huge current spike during a very brief recharge period. The larger the capacitor, the shorter the spike interval... but also the larger the capacitor, the larger the spike in amplitude. It is possible to damage your bridge rectifier due to too large of a filter capacitor. You can also go anywhere up from the WVDC (working voltage DC) but never lower.
Promoted items from Pinside Marketplace and Pinside Shops!
You're currently viewing posts by Pinsider wayout440.
Click here to go back to viewing the entire thread.
Reply
Wanna join the discussion? Please sign in to reply to this topic.
Hey there! Welcome to Pinside!
Donate to PinsideGreat 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+!
