Niwumpf replacement CPU board takes about 10 seconds to show scores

The Niwumpf replacement System 80 CPU board was offered only for a few games (Haunted House, Black Hole, Panthera, Spider-Man) and needs no battery. It waits roughly 10 seconds before the score displays light, against about 5 seconds for the original board, so don't mistake the delay for a fault.

Systems

• Gottlieb System 80

Games

• Black Hole
• Haunted House
• The Amazing Spider-Man

Related tips

• Why a System 80 CPU stops running
• System 80 CPU board revisions D102, D107 and D20869
• First power-up, step 4: add the CPU board one connector at a time
• Dead CPU board: check the reset line first
• Reset section zener VR1 burnt on a System 80 CPU board
• Displays show 000000 at once and scroll; start does nothing
• Single-ROM CPU board won't boot in an early two-PROM game
• Later single-PROM CPU board won't boot in an early System 80 game

Source: Repairing & Upgrading Gottlieb System 80 Pinballs from 1980 to 1989, Part One, Clay Harrell (pinrepair.com)