A group of lamps at the top of the playfield, which normally glow softly once a game starts, no longer light at all.
Upper playfield lamps dead with a good fuse: bad wiring at J5 on the power board
Cause: Damaged wires and a poor connection at connector J5 on the playfield power board, which feeds that lamp circuit (violet wire in the manual).
Checks
- Look up the lamp circuit's wire colour and fuse in the manual and check that fuse with a meter, including that its clips grip properly.
- Inspect connector J5 on the playfield power board and the wires into it for burnt, loose or broken pins.
- Check the sockets at the back of the playfield too, since balls can smash them.
Fix
- Repair the damaged wires and repin or replace connector J5 on the playfield power board.
Systems
Games
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Source: Pinball Repair help group!! (Facebook group)