Thing Knocker
High Power · cabinet ·
Wiring
- Wire
- Violet-Red J132-2 · Q80
- Fuse
- F105 (3A S.B.) (derived from the fuse list, not printed per coil)
Parts
Location
- Not on the playfield map: in the cabinet.
- No callout on the location map
Coil missing on this machine: the A-15267 bracket and the rubber pad are in the cabinet, the AE-23-800 coil is not. The game plays without it; the knocker only sounds on awards. Fitting it is Machine setup step 7, Upgrades and upkeep.
Service log
Everything you record stays on this device.
Service notes: Measure across the two lugs, game off: about 4.7–4.8 Ω (measured). Near 0 Ω is a shorted coil that blows fuse F105 (3A S.B.); open is a dead coil. Then the diode across the lugs, the driver transistor Q80 on the driver board, and the connector pin J132-2. A coil that locks on is the transistor, not the coil. Never oil the plunger or the sleeve. A2 Coils, magnets and motors
Appendices:A2 Coils, magnets and motorsA5 Power driver boardA1 Multimeter basics