(Topic ID: 267399)

SOLVED - Bally Space Invaders: 45V on all coils, but none working

By HeyItsMeDusty

3 years ago

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6 posts
4 Pinsiders participating
Latest reply 3 years ago by Quench
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Space Invaders Bally, 1980

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No coils are working. When checking voltage on the coils, I’m seeing 45V on the power side and the return, on all coils.

How could this be?
EB2E83C0-6EE0-408C-94E5-371FBA6FFF8A (resized).jpeg

Quench , thank you!! I inspected the 5V section, and found that wiggling the J3 connector engaged the coin door lockout coil. Repinned that connector, but no change, still had to wiggle connector. Sanded the male pins, removed the solder on the male connector and flowed new solder on, and bingo, everything works!

Thank you for the help!

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