Speed Rumbler Error........

tddlny

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I have a Speed Rumbler that is giving me fits. Played great for years then started to take awhile to come up. Then it would come up and all ok. After another month it did the same thing but had a rom2 errror flash on the screen. Sometimes it would come up and sometimes the rom2 error. Finally the rom2 error would always come up. Broke down and found another PCB on EBAY cheap and tested it in another game. it worked perfect. Put it in the Speed Rumbler and it too had a rom2 error. Put a new switching power supply in the cabinet and that didn't help. Only other thing left is the huge transformer in the bottom of the cabinet. (i tested the original board in another cabinet and it worked fine. wish I would have did that before getting another one off of ebay.) any other thoughts would be appreciated.....

Thanks
 
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So... summing it up thusly...
2 PCBs
2 cabinets
both, when in the same specific cabinet, give a "Rom2 error"
1 of them (the original one), when in the other cabinet, works fine
Correct so far?
Have you tested PCB #2 in the other cabinet?
 
Yes...tested both pcs's in both cabinets. In the Speed Rumbler cabinet, both PCS's have the ROM2 error. Int he other cabinet, both PCB's work perfect....

Thanks
 
Not sure what a "ROM2" error is caused by in a Speed Rumbler but, since you replaced the power supply and the issue didn't resolve or change at all I would suspect the edge connector that plugs onto the PCB.
The odds of you having 2 boards with the same exact failure is pretty extreme. I'm not saying it isn't possible but if you were betting against odds like that you'd be poor in a hurry.
Taking you at face value regarding the power supply and assuming it's providing the proper voltages... that leaves the wiring. Most likely wiring component is the edge connector.
Now... how do we prove that?
 
MAn, I appreciate it. I think I have another JAMMA harness and I will try replacing it this weekend. I will let you know,,,,

Thanks again!
 
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