Description
A20B‑3300‑0282 FANUC Graphic Control Module
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The A20B‑3300‑0302 is a display/video control module PCB used in industrial FANUC CNC controllers. It’s part of the A20B‑3300 series of printed circuit boards that handle display and operator interface functions within the controller cabinet.
🖥️ Key Details
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Part Number: A20B‑3300‑0302
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Type: 9.5‑inch Mono LCD Video Control Module — this board drives the monochrome display used in many FANUC controller setups.
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Function: Responsible for generating and controlling video output on the 9.5″ monochrome CNC display. It communicates with the CNC controller’s main CPU and other interface boards to render machine status, menus, coordinates, and operator information.
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Series: Part of the A20B‑3300 PCB family — a broad set of boards used in FANUC i‑Series and other controllers.
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Installation: Plugs into the CNC controller’s backplane alongside other cards like CPU cards, axis control boards, and I/O modules.
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Typical Use: Found in controllers that use 9.5″ monochrome LCDs, common in older and mid‑generation CNC systems where simple, reliable display output is required.
⚠️ This board doesn’t include the physical screen itself — it’s the control electronics that drive the display panel. If faulty, the machine may run but display output could be blank or garbled.
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