A-12742 WPC-89 MPU

Technical Features
• Available with or without AA battery holders
• Additional 2‑pin header for remote battery holder connection (no soldering required)
• Available with SRAM or NVRAM (Note: Williams ASIC, MPU and game ROM not included)
• High‑risk devices (U14, U16–U20) are socketed for straightforward diagnostics and replacement
• Quality Molex connectors for power and switch inputs
• Built using original‑spec components from reputable manufacturers
• Authentic schematic‑correct design — all component placement, connections and routing match the WPC‑89 original board
• Fully tested before shipping

Why choose this board?
Original WPC‑89 MPU boards are now decades old. Many suffer from:
• Battery leakage damage
• Corroded connectors
• Failed components
• Repeated field repairs
• General ageing of silicon and copper

Even when repaired, you’re still relying on components that have already lived a long service life.

This board is a clean, drop‑in replacement that behaves exactly like the original — same timing, same routing philosophy, same component choices — but built with fresh silicon and clean copper.

For restorations, long‑term reliability, or machines that see regular play, a new board is often a better solution than continuing to patch an ageing original.

If you want a board that…
• Drops straight in
• Looks and behaves like the factory original
• Uses quality components and connectors
• Matches the original schematic and routing
• Is built for long‑term reliability

…then this is the one.