F18A MK1 12" Ribbon Cable

The F18A MK1 12" Ribbon Cable distributed by Arcade Shopper is a specialized flat flexible circuit (FFC) replacement part. It is engineered to transmit digital video signals from an upgraded video processor out to a monitor interface inside vintage computers and gaming consoles, including the Coleco ADAM and standard ColecoVision.

Purpose of the Cable

The F18A MK1 Video Processor Upgrade drops directly into the motherboard socket of the original Texas Instruments TMS9918A/9928A Video Display Processor (VDP). Because the F18A bypasses the native noisy RF and composite analog mixing paths to provide pixel-perfect VGA output, it requires a dedicated physical pathway to send that digital signal out of the console housing.

The 12-inch ribbon cable plugs into the surface-mount FPC connector on the F18A board and routes the data safely to a custom VGA output header or a breakout box mounted on the back of the computer shell.

Why the 12-Inch Length Matters:

While standard F18A kits historically shipped with shorter 6-inch or 8-inch ribbons optimized for the tightly packed layout of a TI-99/4A console, a longer cable is crucial for an ADAM installation:

• Chassis Navigation: The Coleco ADAM Memory Console features a much larger, deeper footprint than a standard 1980s game console.
• Avoiding Interference: A 12-inch extension provides the necessary slack to route the delicate cable neatly around internal obstructions, shielding brackets, and high-current power traces running down to the internal Digital Data Pack tape drives.
• Flexible Mounting: The added length allows modders to mount the VGA port cleanly anywhere on the rear IO panel without pulling the ribbon taut against sharp motherboard components.

Availability & Pricing

The standalone replacement cable historically retails for $5.00 directly through the Arcade Shopper Classic Computers Store. It is frequently utilized by retro-hardware builders who need a replacement for a creased ribbon, or those performing a "no-cut" console install that routes video to a separate internal daughterboard.