about a year ago I repaired and shopped my Bally Eight Ball that had been sitting broken since I purchased the game in non-working condition. I installed a new Alltek CPU board, and new Rottendog PS Driver, and a new Rottendog rectifier board near the transformer. I also installed new Rottendog LED displays. The only original board left is the lamp driver. The game was then placed on my route powered on 24-7 and has worked fine for the last year.

A few weeks ago I noticed the game was occasionally resetting itself for no particular reason. Then a few week later it was off and would no longer boot, however the playfield and back box GI is lit. I powered the game off and on a few times, with same result.

I changed the Alltek CPU, and same result so I puuled the game from location and brought it back to my shop. Here is the results of test point voltages, all with the ground lead of meter on board ground test points:

PS Driver
+5v = 5.003
+12v = 16.61
+180v = 188.2
+300v = 257.7

Rectifier Board
5.4vdc = 7.34dc
230vdc = 10.75dc
11.9vdc = 16.7dc
7.3vac = 7.22ac
43vdc = 50.64vdc

while testing the voltages occasionally I would hear (what sounded like a solenoid click) and the game would boot for a few seconds, then go off again with on GI lit. This happened several times.

Any ideas????
thanks in advance for any help

yes they are all new molex

there is no sound board on eight ball, and I do not think the lamp board can keep it from booting, but correct me if I am wrong about that. As stated above, every molex (3) on the rectifier board is new.

for those of who that really know this era of bally solid state, which connectors are necessary to actually boot the game? Maybe I can undo the others not needed to boot and see what happens.

As for diagnostic LED's, on the Alltek board the top (MPU self test) and bottom (+5v) are lit, the middle (power voltage) is out.
on the PS Driver board, the LED 1 and LED 2 are both lit.

My gut tells me its a power supply issue, please help

thanks for the suggestions, I will investigate this tomorrow