The game shows a no X or no Y movement error for the glove, or the glove won't work.
Johnny Mnemonic: "No X Movement Detected" or glove switch faults
Cause: The glove uses four 5-leg U optos (A and B on each of the X and Y threaded rods), two microswitches for the centre (front-back) and leftmost positions, and a ball-in-hand leaf switch inside the magnet (matrix F5). If any one of the four optos fails, the whole glove stops. Small .100 inch connectors on the two opto boards and cracked header joints on the glove motor board are also common.
Checks
- In switch test T.1, spin each threaded rod by hand and confirm both its optos change (pull the playfield fully forward to reach the boards behind the back panel).
- Close the two microswitches by hand, then confirm the glove closes them as it moves.
- Test the ball-in-hand switch with a real pinball, not a finger.
- Reseat the opto board connectors; if that fixes it, replace them. Check header pin joints on the opto boards and the under-playfield glove motor board.
Fix
- Replace any failed or intermittent U opto.
- Replace the connectors and reflow the header pins.
- Finish by checking the magnet in solenoid test, and fit CPU ROM version 1.2 (the latest) if an older version shows at boot.
Systems
Games
Source: Repairing Williams/Bally WPC Pinball Games from 1990 to 1999, Part Three, Clay Harrell (pinrepair.com)