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NI-WUMPF MARK II Gottlieb Sys. 1 CPU Board

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GottliebĀ® 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 GottliebĀ® 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:


  • Free game mode


  • 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.


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


  • Automatic scoring threshold adjustment.


  • Ball Save!


  • Million point scoring.


  • Idle mode animation.


  • Skill shot option.


  • Four high scores memory.


  • 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


12 oz
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