Fanuc A16B-1200-0510/04A Circuit Board

The Fanuc A16B‑1200‑0510/04A is a high‑precision power amplifier circuit board used in Series 16 robot controllers, featuring LED status indicators and multiple connector interfaces. Common failures on this board include burned or cracked capacitors, damaged MOSFETs, and shorted driver outputs due to overheating; visual inspection often reveals discoloration or component failure. Begin troubleshooting by verifying the 24 V/48 V supply rails with a multimeter, checking for proper voltage at each connector pin, then inspecting the board for burnt components or loose solder joints. Finally, review any error codes from the robot controller and test the LED status indicators for correct operation.[oss-gpt-20b]

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