Luddite
Member
I have a star wars board with the Cowgill SW/ESB kit. I am getting a Math box error. I saw a thread showing the exact symptoms I am having along with the solution.
""SYMPTOMS: When game is played, everything appears normal until you select a difficulty (deathstar). Once your ship leaves the menu, no starfield background nor enemy attackers (tie fighters) nor deathstar ever appear. Gameplay is otherwise unaffected (you can aim, fire, etc).
> SOLUTION: Check the four 18-pin socketed ROMs 136021-110 through -113 at locations 7H, 7J, 7K, 7L in the middle of the main game board. At least one of these is bad. These are 1024x4 bipolar 82S137 (Signetics) PROMS which contain the microcode for the math box. ""
The proms were part of the kit when it was installed. I believe it is the 7L that is bad (136021-113). I need one that has the code for both SW and ESB? Does anyone sell them or can make them? Where can I buy these?
""SYMPTOMS: When game is played, everything appears normal until you select a difficulty (deathstar). Once your ship leaves the menu, no starfield background nor enemy attackers (tie fighters) nor deathstar ever appear. Gameplay is otherwise unaffected (you can aim, fire, etc).
> SOLUTION: Check the four 18-pin socketed ROMs 136021-110 through -113 at locations 7H, 7J, 7K, 7L in the middle of the main game board. At least one of these is bad. These are 1024x4 bipolar 82S137 (Signetics) PROMS which contain the microcode for the math box. ""
The proms were part of the kit when it was installed. I believe it is the 7L that is bad (136021-113). I need one that has the code for both SW and ESB? Does anyone sell them or can make them? Where can I buy these?
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