So I recently acquired a Williams star trek the next generation with battery leakage issues. I just replaced the main cpu board and atleast got the game to run. So the next issue at hand is that i am having some flipper/solenoid issues.

Lower Right flipper in/op
Upper right flipper works fine
Left/right slingshot(9/10) in/op
Left, right, bottom jet bumpers(12,13,14) in/op
Right gun/kicker can't find home.

Slingshot and bumpers activate when in lost/stuck ball scenario. Just no response during actual gameplay.

Right gun issue. Both switches opening/closing during manual movement in test mode. Tried removing and resetting motor manually and still gets lost from home.

Any chance of these being 1 main problem, or just a lot of little ones? Could the main cpu board have caused other electrical failures? Thanks.

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I believe there could have been some battery contact with the connectors. Best cleaning procedure? Tooth brush and a nuetralizer?

Thanks. I neutralized everything and reset the cables. The bumpers and slingshot are now working. Was working in bad lighting when I put the board in and didn't notice how bad the connectors really were.

Now I read a couple posts on the flipper issue and one on the shooter not finding home. So need to tackle those issues now.

Should these connectors be replaced?

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I appreciate all the input. Need to get another air hose so I can get air power into the basement from the garage to really clean that connector out.

I am still relatively knew to pins, but have experience in general electrical diagnostics. Learned gottlieb platform with my sf2 pin. So this Williams machine is a little foreign to me. When I was running through the test pages for the flippers, I couldn't seem to get them to actuate by testing... or in general figure out a simple on/off open/closed testing for switches. . I'm still learning how to navigate through the test screens and read through the manual i got with the machine. So thanks again for all the input.

That would be awesome... I'm going to do some more troubleshooting my self to learn the system some more. Incase I get stuck with anything. Thanks.

Chris

It wouldn't let me pm you because I am a new member. Shoot me a pm. Thanks.

Right gun/launcher fixed... started poking around and stress testing/wiggling the wiring. Started acting all sorts of crazy. Split the sheathing back and found a broken wire for the optical switch/sensor. Did a quick solder until I get some new wire to replace them all. Works great and no more searching for home.

Now lastly the flipper. Tried switching left/right boards. No difference. Time for more digging.

Resolved the final problem. I forgot to mention that when I first looked at the flipper prpblem, I found a burnt coil. I replaced the coil but only visually inspected everything else. Threw a meter on the fuse and found it was bad. New fuse and game is running as should. Thanks for all the help and suggestions.