The Altera CN4091‑06 Scanner Board is a field‑programmable gate array (FPGA) based control module used in industrial imaging and automation systems. Common failure points for this class of boards include power‑rail degradation on the 5 V/12 V supply lines, latch‑up or overheating of the FPGA core, and damaged I/O buffers that can cause intermittent data loss or complete scan failure. Initial diagnostics should verify the board’s input and output voltage levels with a multimeter, inspect for visible burn marks or cracked solder joints on the FPGA package and surrounding components, and review any error logs or status LEDs for indications of over‑temperature or lock‑up conditions.[oss-gpt-20b]