(Topic ID: 332768)

Bally Truck Stop proto 3 version software

By pinballpicker

1 year ago



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#1 1 year ago

Has anyone installed the Proto 3 version software to U2 and U3 from Proto 2 version and the game not boot up after that?

Bally had a service bulletin (SB-01 12/15/88) that said there was a ROM error where the game would intermittently lock up when
in the multi-player mode using proto 1 and 2 version software on U2 and U3.

It was only between serial numbers 180000-182700, which mine is.

Should I go back to the proto 2 version?

Thanks

#2 1 year ago
Quoted from pinballpicker:

Has anyone installed the Proto 3 version software to U2 and U3 from Proto 2 version and the game not boot up after that?
Bally had a service bulletin (SB-01 12/15/88) that said there was a ROM error where the game would intermittently lock up when
in the multi-player mode using proto 1 and 2 version software on U2 and U3.
It was only between serial numbers 180000-182700, which mine is.
Should I go back to the proto 2 version?
Thanks

The Proto 3 version is there to solve the problem.
If you go back to Version 2 the problem is back.
Staying with the latest version is the best way.

#3 1 year ago

Problem solved!

I discovered that the chips were different numbers. One was M27128A and the other was 27C128. I thought they were both M27128A's. I rewrote the 27C128 chip and now the pinball is working again.

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