1980 Williams FIREPOWER uses the following EPROMS:
IC14 Game L-2
IC14 COMBO ROM (recommended)
IC17 ROM2
IC20 ROM1
IC12 Sound ROM3
IC5 Speech
IC6 Speech
IC7 Speech NOTE: Use IC14 L-2 only if your IC21,IC22,and IC26 are still present and functional. IC21, IC22, and IC26 are bipolar PROMS and are no longer available.
New IC14 Combo ROM kit replaces old IC14 and obsolete IC21, IC22, IC26 bipolar PROM chips. Use new combo ROM IC14 kit in place of these four chips.
Installation note: EPROMS should be installed only by persons experienced with electronic printed circuit board repair. Soldering and/or jumper changes may be required on boards when used with certain EPROMS.