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This subject seems to involve a lot of myth so I was wondering if someone can explain the technical rationale why it happens.
when in upper waves of robotron, when firing aggressively at the enforcer robots on the side walls. you can cause the program to go into carpet pattern reset mode and reboot.
I recently sold my upright robotron that ailed from this.
since it was a real robotron i followed all the forum information about 4164 ram, conflicts with linear vs switching powersupplies, fresh batteries, ribbon cable connectors, dirty pins, etc.
nothing really fixed it. so my friend who bought it has been researching extra stuff like the nicad battery upgrade on cpu, cmos retro board update, etc. all lots of little nickel and dime money.....
FAST FORWARD.... i just started playing blue label rom Robotron on MAME .138.
and i can trigger carpet pattern resets there too!!!!!!!!!!!
since it's running from my computer i know it has nothing to do with all the mythological williams hardware stuff.
now that i think of it, have seen this happen on the 19-1 board as well, except you don't get a carpet pattern, the screen just freezes.
So what exactly is the nature of this defect, and is there a set of roms available out there that truly fixes it?
curious to hear from the Williams experts. Thank you.
when in upper waves of robotron, when firing aggressively at the enforcer robots on the side walls. you can cause the program to go into carpet pattern reset mode and reboot.
I recently sold my upright robotron that ailed from this.
since it was a real robotron i followed all the forum information about 4164 ram, conflicts with linear vs switching powersupplies, fresh batteries, ribbon cable connectors, dirty pins, etc.
nothing really fixed it. so my friend who bought it has been researching extra stuff like the nicad battery upgrade on cpu, cmos retro board update, etc. all lots of little nickel and dime money.....
FAST FORWARD.... i just started playing blue label rom Robotron on MAME .138.
and i can trigger carpet pattern resets there too!!!!!!!!!!!
since it's running from my computer i know it has nothing to do with all the mythological williams hardware stuff.
now that i think of it, have seen this happen on the 19-1 board as well, except you don't get a carpet pattern, the screen just freezes.
So what exactly is the nature of this defect, and is there a set of roms available out there that truly fixes it?
curious to hear from the Williams experts. Thank you.
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