The ANILAM Wizard Scale is a precision glass linear encoder paired with an integrated digital readout (DRO) console, commonly used on manual machine tools for sub‑micron positional accuracy. Known failure modes include power supply instability or AC voltage spikes damaging the DRO’s microprocessor and LCD display, contamination or wear of the glass scale surface causing drift or loss of resolution, and internal wiring faults leading to intermittent signal loss or erroneous readings. First‑check diagnostics should verify the console’s input voltage with a multimeter, inspect the LCD for backlight failure or pixel dropout, perform a visual inspection of the glass scale for scratches or dust accumulation, and review any stored error codes via the DRO’s menu interface.[oss-gpt-20b]