Graphtec PN6073-01C Main Board

The Graphtec PN6073‑01C is a main control board used in high‑precision industrial plotters and CNC marking systems, featuring a power supply interface, multiple I/O connectors, and an embedded microcontroller for motion control. Common failure points on this class of boards include degraded power regulator capacitors, burnt or cracked PCB traces around the DC input, and failed MOSFETs that drive stepper motors; the onboard diagnostic LEDs often flash in error patterns if the firmware detects a fault. First‑check diagnostics: verify the 12 V/24 V supply voltage and polarity at the board’s power connector, inspect for visual signs of component damage or solder bridges, and read any error codes from the status LEDs or serial console before proceeding to deeper troubleshooting.[oss-gpt-20b]

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