Description
📌 A20B‑3300‑0410 — FANUC 9″ CRT Display / Graphics Driver Module
Description:
The FANUC A20B-3300-0410 is a display graphics module used in FANUC CNC control systems. It is designed to drive and manage the 9-inch CRT (Cathode Ray Tube) display on supported controllers, particularly in older or modular FANUC systems (like Series 0i-B, 16i, 18i, 20i, 21i, etc.) where a CRT screen is part of the operator interface.
Key Features & Function:
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🖥️ Display Controller: Acts as the graphics driver/control PCB for the CNC’s CRT display, generating the video interface and managing visual output to the screen.
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📏 Display Type: Supports 9-inch CRT displays commonly used in legacy FANUC CNC panels.
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🔌 Integration: Plugs into the CNC’s internal backplane/mainboard alongside other system modules such as CPU, memory, servo/axis control, etc.
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🛠️ System Compatibility: Primarily used in older FANUC i-Series or 0i controllers that utilize modular graphics cards for the operator display rather than fully integrated modern displays.
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📦 Form Factor: PCB module that fits into the CNC control rack; works with CRT displays and connects to the controller electronics.
Typical Application:
This board converts internal video/graphics signals from the CNC control electronics into a format suitable for the CRT monitor, enabling the operator to see machine status, program data, alarms, and other interface screens. It’s a critical part of the visual subsystem in older FANUC controllers.