The FANUC A16B-1000-0010 is a discontinued System 3 CNC master PCB used in legacy FANUC 3M, 3T, 3TC and 3TF configurations. It serves as the central control board for CNC processing, program and parameter storage, axis coordination, spindle-control interfacing, display output and communication with fitted peripheral boards.

A16B-1000-0010 is a configuration-sensitive motherboard and backplane. The printed revision, jumper settings, socketed ROMs, memory devices and installed option boards must match the original control before replacement.

A16B-1000-0010 Product Information

System 3 Master-Control Functions

The board combines the main CNC control and backplane functions used to connect machine-specific graphics, I/O, memory and additional control boards. Exact functionality differs between milling, turning, FAPT and machine-builder configurations, so the base part number alone does not define the complete system.

Display and FAPT Configuration

Standard System 3 installations can use monochrome CRT displays. Systems equipped with separate graphics hardware or FAPT may support a 12-inch color display. When an A20B-1000-0320 FAPT PCB is fitted, its memory may require separate initialization after master-board replacement.

Replacement and Data Restoration

Match the full A16B-1000-0010 revision, jumper positions, ROM set, memory, connectors and every plug-in board. Back up parameters, programs, offsets and machine data before removal. A replacement may initially show a parity alarm and require memory initialization followed by complete parameter and program restoration by qualified CNC personnel.

Related resources: FANUC CNC circuit boards and FANUC CNC board repair services.