Half the backbox lamps and the lower displays dead: check the backbox fuses
On a game revived after years in storage, half of the backbox lamps and GI were out and the bottom score displays did not light. The cause was blown fuses in the backbox. Pull each fuse and test it with a meter, since a fuse can look fine; after that, check the power board connectors for burnt pins.
The display fuses are on the high-voltage display supply; turn the game off before pulling them.
Systems
Games
Related tips
- Blown high-voltage display fuse in the backbox
- Power supply board fuses (typical game)
- Pop bumper, sling and right-side GI lamps all go out at once: blown GI fuse
- Game resets when the flippers are used: recap supply and renew MPU power connector
- Right-side playfield GI out: a wire not seated in a new power board connector
- Special solenoid fuse blows at power-up: a pop bumper switch held closed
- Lower the display voltage to 91 V to extend display life
- Score displays weak, dim or dead with fuses good
Source: Pinball Repair help group!! (Facebook group)