I gave up on this game a long time ago but I really want to get it working. I need help...
When I got the game it was DOA.
I rebuilt the voltage reg. and it test out ok, I think...
I replaced the MPU with an Alltek ultimate CPU and the Power board with a Rottendog BPS022.
When I turn the game on I get nothing and the self test LED on the Alltek keeps blinking.
In troubleshooting I have found the following:
On Rottendog BPS022, LED1 and LED 2 are lit.
Test points read OK except for TP2 (should be 12v) is reading 16v. TP4 (should be 180v) is reading 66v. I am assuming this is because there is no load on it? Or do I have a voltage problem elsewhere?
Next step in the process on the MPU.
With everything plugged in self test keeps blinking so I unplugged everything to the MPU board and tested. I found this:
(I basically started plugging one connector in at a time and power cycled for each)
Every time I turn on the game in with any plug, except for J4, I get the proper 8 blinks on the self test LED and then goes dim. (this is how it should be)
As soon as I plug in J4 it fails and keeps blinking.
So, next, I unplugged everything coming to the J4 plug and started again by plugging everything in one at a time. Now I find that as soon as I plug in J4 on the driver board it fails again...
Could the driver board have an issue? As a side note, as soon as I plug in the ribbon cables from the sound board I get a low hum and the self test on the MPU keeps blinking, so thats another issue.
Any help would be GREATLY appreciated since like I said, I really want to get this game working. Thank you.