Description
Here is a all in one replacement drop target sensor board for the 17 notorious Williams System 3-6A titles that have the finicky Horseshoe slide drop register system.
This new NMP board(s) used a magnetic sensor to record the targets drop.
No more dirty contacts, bent or broken horseshoe points, just reliability!
If your going to add this system I would suggest to fully remove, disassemble, and clean your existing drop target assemblies.
The magnet(s) are included, and glue into the molded cup on the back of the drop target. (see gallery)
Instructions with game specific wiring diagrams are included.
These fit the following Solid State titles, in order of production:
Hot Tip 1977 (2x-3DT PCB)
Lucky Seven 1978 (1x-single GRN, 1x-single RED)
Contact 1978 (1x-4DT PCB)
Disco Fever 1978 (1x -3DT PCB, 2x-single GRN)
Phoenix 1978 (2x-4DT PCB, 2x-single GRN)
Flash 1979 (1x-5DT PCB, 1x-3DT PCB)
Stellar Wars 1979 (1x-4DT PCB, 2x-3DT PCB)
Tri-Zone 1979 (3x-single GRN, 1x-single RED)
Time Warp 1979 (1x-5DT PCB, 1x-3DT PCB)
Gorgar 1979 (2x-3DT PCB)
Laser Ball 1979 (1x-4DT PCB, 1x-3DT PCB, 2x-single GRN)
Firepower 1980 (2x-3DT PCB)
Blackout 1980 (2x-3DT PCB)
Scorpion 1980 (1x-5DT PCB, 2x-3DT PCB)
Algar 1980 (2x-3DT PCB)
Alien Poker 1980 (1x-5DT PCB)
