NI-WUMPF MARK II Gottlieb Sys. 1 CPU Board

Gottlieb® System 1 CPU Board - Ni Wumpf MARK II model

Gottlieb System 1 Replacement Board

New MARK II design, plug and play replacement for those unreliable, unobtainable, un-repairable old Gottlieb System 1 pinball machine main computer boards.

The wizards at Ni-Wumpf (an inside joke for Monty Python aficionados) created this new, half size computer.

This new MARK II board is a plug-in replacement and upgrade for the original GOTTLEIB System 1 CPU board. It supports all of the games in the platform series, and provides considerable diagnostic capability for the technician when troubleshooting where a game may be malfunctioning. The entire game software has been re-written with an emphasis on maintaining the timing and compatibility of the original board, however with quite a bit more functionality added in:

Key Benefits:

• Direct replacement of the original System1 board.

• Enhanced switch input circuitry prevents damage to the board from playfield wiring issues.

• All game code completely re-written (with some minor original Gottlieb® glitches omitted!)

• Text based diagnostics menu system allows operator settings (previously set via DIP switches) to be entered via front door switches.

• Tests cycle repeatedly (until timeout) to help isolate faults.

• Enhanced use of high reliability surface-mount components with off-the-shelf thru-hole components at the edge for ease of serviceability.

• Display test to exercise all digit segments (numbers), and to strobe each digit independently to check for display (UDN6118) shorts.

• Solenoid test exercises each coil including lamp controlled coils (when DIP switch configuration set for such a game)

• Enhanced switch test identifies stuck switches.

• Power-up code revision and game setting displayed for quick diagnostic configuration identification. Switch test detects dirty switches on the playfield.

• All 16 System 1 games are included on one board with no ROM swapping required.

• Original MPU functions have been closely duplicated and many new features added including:

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• Free game mode

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• Updated game options for many games to allow add-a-ball mode (multiple free-balls awarded during a single ball) where the playfield challenge is reset once after scoring the free-ball / special.

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• Menu options to disable add-a-ball (for operators who requested it!)

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• Automatic scoring threshold adjustment.

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• Ball Save!

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• Million point scoring.

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• Idle mode animation.

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• Skill shot option.

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• Four high scores memory.

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• Restore factory-settings option for quick reset of settings.

• Open-collector output logic with zener diode protection for all solenoid circuits and lamp select lines to prevent CPU damage from a damaged driver board.

• Battery-less operation - all settings and high-score data are stored in FLASH with >100,000 write cycles.

• Designed for low-cost component repair and maintenance on I/O sensitive components (exposed to bad displays / bad driver boards, etc.)

• Stuck switches are ignored and do not impair game operation, including the slam switch!

Here is the comprehensive manual detailing set up, operation, diagnostics, and schematics. Includes a 30-day warranty.

Works in ALL of the following machines:

• BUCK ROGERS

• CHARLIE'S ANGELS

• CLEOPATRA

• CLOSE ENCOUNTERS OF THE THIRD KIND

• COUNTDOWN

• DRAGON

• GENIE

• INCREDIBLE HULK

• JOKER POKER

• PINBALL POOL

• ROLLER DISCO

• SINBAD

• SOLAR RIDE

• TORCH

• TOTEM

Ni-Wumpf CPU manual is here.

Additional technical support for the NiWumpf board is available here.

Reference:

Gottlieb System 1 MPU