NuArc FT26V3UP-5KM Platemaker Control Board w/ LED Display Panel

NuArc FT26V3UP-5KM Platemaker Control Board w/ LED Display Panel

This is the OEM control board assembly from a NuArc FT26V3UP-5KM UV platemaker, featuring a 4-digit 7-segment LED display and a 16-key membrane keypad mounted on an aluminum front panel bracket. The board serves as the primary operator interface and timing controller for the FT26V3UP-5KM exposure unit, managing exposure time input and countdown display during platemaking cycles.

Specifications & What's Included

• Manufacturer: NuArc
• Compatible machine: NuArc FT26V3UP-5KM Platemaker
• Display: 4-digit 7-segment LED display (front panel)
• Keypad: 16-key membrane-style keypad (4×4 matrix)
• Mounting: Aluminum front-panel bracket with screw tabs
• PCB: Green fiberglass main control board with relay, DIP ICs, and crystal oscillator
• Daughterboard: Secondary green PCB (display/keypad interface) attached via ribbon cable
• Interconnect: Flat ribbon cable between main board and front-panel daughterboard
• Relay: One socketed relay visible on main PCB
• Includes: Control board assembly with aluminum bracket — no additional cables or mounting hardware

Applications

The NuArc FT26V3UP-5KM is a professional UV exposure/platemaking unit used in screen printing shops for exposing photosensitive emulsion screens and printing plates. The control board governs the exposure timer — the operator keys in an exposure duration on the membrane keypad, the LED display counts down the cycle, and the board triggers the UV lamp relay at the start and end of exposure. NuArc (later part of OLEC Corporation) produced these flatbed platemakers widely from the 1980s through the 2000s, and they remain common in screen printing facilities today. Replacement control boards for these units are difficult to source new, making a working pull a valuable find for shops maintaining aging FT26V3UP machines.