WMS System 3 to 7 MPU & Driver Combination $350 + $10 shipped
Works in all Williams System 3 to 7 pinball games and some shuffle games.
Single Combined ROM with game select by dip switch.
NVRAM
Current draw greatly reduced
LED ghosting fixed (in most situations) by hardware delaying the lamp rows.
MOSFET solenoid and lamp circuitry reduces complexity and, eliminates sixteen power resistors.
All surface mount chips and power transistors have a second set of redundant holes for easy through hole repair.
Not compatible with Hyperball.
All switch matrix & special solenoid switch integrated circuits are in an IC socket.
Single Combined ROM with game select by dip switch.
NVRAM
Current draw greatly reduced
LED ghosting fixed (in most situations) by hardware delaying the lamp rows.
MOSFET solenoid and lamp circuitry reduces complexity and, eliminates sixteen power resistors.
All surface mount chips and power transistors have a second set of redundant holes for easy through hole repair.
Not compatible with Hyperball.
All switch matrix & special solenoid switch integrated circuits are in an IC socket.
Game List and Setup information.
wms.sys.3.to.7.setup.info.r3.pdf |
wms.sys.3.to.7.setup.info.pdf |
Pinout Chart
wms_3-7_connections.pdf |
Example Circuits
wms_3-7_examples.pdf |