FANUC A20B-8002-0312 is a touch panel control printed circuit board for compatible FANUC CNC display and PANEL i configurations. It interfaces the touch-sensitive panel with the control hardware so operator screen selections can be processed by the system.

FANUC documentation lists this PCB in selected Series 0i Model D and Series 30i/31i/32i Model B hardware, as well as documented PANEL i assemblies. It is a touch-input control board, not an LCD inverter, display control board or complete touchscreen.

A20B-8002-0312 Product Information

Touchscreen Input Control

The A20B-8002-0312 receives touch-panel input and provides the interface required by the associated CNC or PANEL i hardware. Symptoms such as no touch response, incorrect touch position or intermittent operation can also result from the touch glass, cable, connector, calibration or display hardware, so the complete assembly should be checked before replacing the PCB.

Display-System Relationships

In documented 10.4-inch 30i/31i/32i-B touch-display configurations, A20B-8002-0312 is used with a display control board, A20B-8200-0662 inverter board and the corresponding LCD touch unit. Each board performs a separate function and should not be substituted for another display PCB.

Compatibility and Installation Checks

Confirm A20B-8002-0312 on the original PCB together with the complete display-unit number, touch-panel generation, cable number, connectors and CNC series. FANUC notes that some old- and new-specification touch panels and control PCBs cannot be mixed. Isolate power and use anti-static precautions during replacement.

Related resources: FANUC PCB boards, FANUC CNC controls and FANUC touchscreen and CNC repair services.