Picked up a Scorpion Pinball machine about a month ago, one of the first early wide body cabinets. Not a bad game, like the drop down targets, but the game play definately isn't as fast as my Firepower machine, and it does lack something without any voice sounds. I do like the dual flippers though, and it does remind me a little of Black Knight with the two almost seperate playfields.
Was a bit of a mess electronically, even had a fuse wrapped in tinfoil, needed a number of repairs. Battery box was defective and needed to be replaced. IC19 5101 was dead, and had to be replaced so I installed a new IC with a socket. Most of the male pins were no longer soldered very well, so I resoldered the 40 pin connector.
Replaced switch 06, was causing poor flipper operation .
Cleaned all contacts using diagnostic tool # 3 and found a number out of adjustment. Now corrected .
The following transistors all needed replacing:
TIP 122 Q33 /10 loose and broken stopped sound number 10
Tip 122 Q37 / Q36 stopped sol 13
Tip 122 Q6 /Q5 stopped top left drop down sol # 4
There were quite a few other issues, but one of the main ones was that none of the displays were operating. This was fixed by replacing the resistors which were out of limits.
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