Description
FANUC A20B-8002-0632 is a specific FANUC CNC control board used in the display/inverter hardware for certain FANUC Series 0 controllers (often found in the 0i-C / 0i-Model controllers). In official FANUC hardware listings it is described as the inverter for the 10.4″ color LCD display in that series.
FANUC A20B-8002-0633 is a specific FANUC CNC system PCB (printed circuit board) — it’s typically used as the inverter/backlight power board for an 8.4-inch color LCD display inside certain FANUC Series 0 CNC operator panels and control units.
📌 What A20B-8002-0633 Is
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Manufacturer: FANUC — a major Japanese industrial automation and CNC manufacturer.
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Part type: PCB — Inverter / display backlight power board.
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Typical use: Powers/regulates the 8.4″ color LCD in the HMI/display of FANUC Series 0 controls (e.g., 0i-MC, 0i-TC, 0i-MD, 0i-TD).
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It belongs to the A20B-8002 family of FANUC control/display interface boards.
🧠 Role in FANUC Controls
Unlike main CPU or axis control cards, this board is part of the operator/display subsystem — specifically the inverter circuit that drives the LCD backlight so the screen works correctly when the CNC system is powered on.
💡 Quick Compatibility Tip
When replacing this part, make sure the LCD size (8.4″ color) and controller series (Series 0 variant) match your machine’s existing setup — otherwise the display may not power or function properly.