Evel Knievel
Bally, 1977You're currently viewing posts by Pinsider Judoratt.
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Currently working on a Evel Kinevel hasn’t played since 1985 the main board had battery damage and was replaced with weebley mpu I also swapped out the driver board with a known working unit. When turning machine on the mpu seems to boot up with the six pulses then nothing else. Voltages on the rectifier board are correct all fuses are intact. What would be the next step, I rarely work on SS machines any advice is greatly appreciated.
08551DCE-2C52-4AEE-BAA9-A09624025E5C (resized).jpegQuoted from Rikoshay:Your 43VDC goes from TP5 on your rectifier board J3 pin 12 to the mpu board at J4 (bottom left) pin 15.
Measure pin 15 to ground and see if you have about 43VDC.
Repinned the MPU checked J4 pin 15 and got 43 VDC nothing has changed with the mpu boot up only 6 flashes then nothing. Tomorrow I will switch out the MPU boards and see if that makes a difference. Sorry for all the questions I rarely work on SS machines.
354D83BB-0540-4A60-B113-DD4F40D751FA (resized).jpegB6029308-8FE4-40C1-983B-142EF77BEAAE (resized).jpegYou're currently viewing posts by Pinsider Judoratt.
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Edmonds, WA