Sounds like you blew a fuse. Did you have the coin door closed when performing the coil tests? They don't work with the coin door open. And if you were working on the game with it closed, that'd be why you blew a fuse.
The red shrink wrapped wire will be for a lamp board. See which lights are out to find the one it goes to.
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Rob Anthony
Pinball Classics
http://LockWhenLit.com
Quality Board Work - In Home Service
borygard at gmail dot com