Futaba Corp. M20MD07A Digital Display

The M20MD07A is a 20‑character LCD/LED display board used on industrial control panels and embroidery machines such as Tajima models. Common failures include power supply decoupling loss, broken backlight LEDs, or damaged driver ICs that cause flicker, blank screens, or misdisplayed characters. Initial checks should verify the 12V/5V rail feeding the panel, inspect for visible solder bridges or cracked traces on the display driver and LED array, and confirm proper I/O logic levels from the host controller. If the board still shows errors, review any diagnostic codes or status LEDs on the main unit to isolate a firmware or communication fault.[oss-gpt-20b]

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