Larko Electronics 24-04 Circuit Board
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Larko Electronics 24‑04 is the power/logic board used in the Mark I gate operator; it houses the ERD potentiometer, main transformer, fuses, and LED indicators that drive the motor controller. Common failures on this board include burnt or blown fuses, a failed transformer winding, degraded potentiometer contacts causing erratic speed control, and solder joint fatigue around the power ICs. For initial troubleshooting check: verify 24 V input to the board, inspect all fuses and the transformer for continuity, and test the ERD pot with a multimeter while observing LED status; if these pass, proceed to examine the motor driver ICs and associated protection diodes.[oss-gpt-20b] |
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Tobaccoville, NC 27050
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Kernersville, NC 27284
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