Willaims Defender Sound ROM Help

Mark Hooks

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I'm rebuilding my gutted Defender cabinet. It's the early version with the long sound board. Anyone know what ROM it used and where I can find the jumper settings? I searched the web but can't find them.
 
Anytime I need to replace a ROM on those first generation Williams sound boards.....I use a 2716. The jumpers at the bottom go (from right-to-left)..

J11/J12/J14/J13/J16/J15/J17/J18

When using a 2716, jumpers 12, 13, 15, and 17 need to be installed. Also, make sure pins 39 and 40 of IC3 are jumpered/connected (6821 PIA). You should also do the 10K resistor mod and the 4.7K resistor mod (if not already do)....outlined on page 22, here...

http://arcarc.xmission.com/Pinball/...nd Schematics/Flash Manual and Schematics.pdf

Edward
 
Anytime I need to replace a ROM on those first generation Williams sound boards.....I use a 2716. The jumpers at the bottom go (from right-to-left)..

J11/J12/J14/J13/J16/J15/J17/J18

When using a 2716, jumpers 12, 13, 15, and 17 need to be installed. Also, make sure pins 39 and 40 of IC3 are jumpered/connected (6821 PIA). You should also do the 10K resistor mod and the 4.7K resistor mod (if not already do)....outlined on page 22, here...

http://arcarc.xmission.com/Pinball/...nd Schematics/Flash Manual and Schematics.pdf

Edward

Thanks Edward. That's exactly what I needed. I'm off to the ROM burner now. Wish me luck.
 
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