Graphtec PN7071‑01C is the main control board used in Graphtec FC8000 series vinyl cutters and related industrial printing equipment. Common failure points for this class of boards include power supply decoupling capacitor degradation, burnt or cracked solder joints on high‑current traces, and firmware corruption that can cause the unit to stall during cutting cycles. Begin troubleshooting by verifying the 24 VDC input voltage and inspecting the board for visual signs of overheating; check all I/O connectors for loose pins or corrosion; then review any error codes displayed on the host computer or printer panel before proceeding with component replacement or firmware re‑flash.[oss-gpt-20b]