A20B-3300-0320 is a display control printed circuit board (CE Card 2) used in FANUC CNC display systems.
📌 Description
-
Part Number: A20B-3300-0320
-
Board Type: CE Card 2 (Control/Extension board)
-
Category: Display control PCB
-
Used With: CNC operator display units
⚙️ Function
This board is installed inside the CNC display module and works together with other display boards to:
-
Process video/display signals from the CNC control
-
Control LCD screen graphics and interface data
-
Support communication between the CNC main CPU and display panel
🧩 Related Boards
The A20B-3300-0320 usually works together with:
-
A20B-3300-0330 → CE Card 1 (display control board)
-
LCD inverter boards for backlight control
-
Panel interface CPU boards
These boards together form the complete display control system for the CNC monitor.
🖥️ Typical CNC Systems
Used in FANUC i-Series CNC controls, such as:
-
16i
-
18i
-
21i
-
some 0i systems
🧠 Summary
A20B-3300-0320 = CE Card 2 display control PCB used inside FANUC CNC LCD display units to manage screen signal processing and communication with the control system.
If you want, I can also explain the full structure of a FANUC display unit (all boards inside the monitor)—that helps a lot when troubleshooting display problems.