(Topic ID: 271282)

Simpsons (Stern) not booting - Color DMD Installation

By kartman_canada

3 years ago


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#34 3 years ago
Quoted from PinballManiac40:

I understand that most of these Whitestar games have a PAL chip on the CPU board that is game specific.

The PAL on Whitestar is not game specific. It's for address decoding.

#36 3 years ago
Quoted from PinballManiac40:

I tried swapping the PAL between Harley Davidson and Sharkey's Shootout and found that will not work.

Sharkey's is an anomaly with its PAL at U213. It had 32K of RAM installed (and used it), where most have 8K.

The PAL to decode 32K of RAM was marked with a "GOLD DOT". Most are 8K games, marked "BLUE DOT". TSPP and LOTR are both blue dot games.

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