QUICK HELP NEEDED! Error 4 on Robotron...having a family party tonight!

enjoyvelvet

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QUICK HELP NEEDED! Error 4 on Robotron...having a family party tonight!

well I was all siked to show off my arcade to the family tonight. Robotron is booting up as "ram error 4" after the rug pattern. It is fine in demo mode but reboots when you start a game. +5 is good and this has the lithium conversion kit installed. I tried wiggling the ribbon cables but its still giving me error 4...I have 6 hours to fix this thing! Give me a hand KLOVers! :)
 
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Try moving the RAM chip to a different location. If the error moves with the chip, it is probably bad and needs to be replaced. If the error stays the same, check the voltages on the RAM chips. You may be having power supply issues.

Also the error messages generally flash in a sequence of three numbers 1-x-y, where 1 is the diagnostic for RAM errors x and y are the bank and chip number respectively.

What is the full diagnostic error message flashing?

ken
 
Try moving the RAM chip to a different location. If the error moves with the chip, it is probably bad and needs to be replaced. If the error stays the same, check the voltages on the RAM chips. You may be having power supply issues.

Also the error messages generally flash in a sequence of three numbers 1-x-y, where 1 is the diagnostic for RAM errors x and y are the bank and chip number respectively.

What is the full diagnostic error message flashing?

ken

well this is the board and ps you sent to me so I would assume its good. I dont really have time to do a full trouble shoot (errards to run thanks to the wife!) :)

so no jiggling of the wires will do the trick? :)
 
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