Coils pulse briefly at switch-on on Volcano, Black Hole and Haunted House
The coils driven through under-playfield 2N5875/2N5879 transistors all pump for about a second when the game is switched on. That is normal.
Systems
Games
Related tips
- Coil stuck on that is driven through a playfield-mounted power transistor
- Correct up-kicker coil for Black Hole and Haunted House
- Haunted House and Black Hole sound board DIP switches
- Black Hole and Haunted House third relay ("U")
- Haunted House and Black Hole fuse panel
- Lower playfield pop bumpers lock on or blow their fuse: shorted driver transistors
- Replacements for the 2N5875 under-playfield power transistors
- Testing a playfield-mounted 2N5875/2N5879 with a meter
Source: Repairing & Upgrading Gottlieb System 80 Pinballs from 1980 to 1989, Part Two, Clay Harrell (pinrepair.com)