Staefa Control System 091-63200-01 Control Unit

The Staefa Control System 091‑63200‑01 is an SMII/Tool‑A operator interface board featuring a 24‑key keypad, LED display, and integrated control circuitry. Common failures on this unit include intermittent or total loss of the LCD image, screen flickering or ghosting, and failure to power up due to a defective main power supply or blown input fuse. First‑check diagnostics: verify mains voltage and continuity to the board’s 24 VDC rail, inspect the input fuse and power supply ICs for burn marks, and review any displayed error codes or LED status indicators on the keypad panel.[oss-gpt-20b]

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