Description
📌 FANUC A20B‑8001‑0922 — LCD Backlight Inverter / CCFL Inverter PCB
Part: A20B‑8001‑0582/01A (Note: This is a related part in the same family — A20B‑8001‑0922 itself doesn’t always have a public product listing but is widely referenced as the same type of board.)
Manufacturer: FANUC
Type: Printed Circuit Board (PCB) — LCD inverter / backlight power board
Used In: FANUC CNC display modules (especially older 8.4″ color LCD screens) — part of the OIT / LCD assembly for FANUC controls (e.g., Series 16i/18i/21i).
đź“‹ Description
The A20B‑8001‑0922 is a backlight inverter PCB used to power and control the cold‑cathode fluorescent lamp (CCFL) backlight in FANUC LCD display units — typically those with 8.4″ color LCD screens. It generates the high‑voltage drive needed to light the CCFL lamp inside the display, enabling the screen to be visible.
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Primary function: Generates and regulates backlight power for the LCD display’s CCFL lamp.
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Application: Installed inside the display / OIT (Operator Interface Terminal) of FANUC CNC systems.
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Screen size context: Works with 8.4″ color LCD displays as part of the inverter hardware.

