10.COMPONENT TESTING INFORMATION
39
10.2 DOOR LOCK
Wiring
diagram
Function
1.Machine door lock:
After press down the “Start/pause” key, the MCU will send out an order to close
the door, the SCR controls the door locks L and N to connect, PTC is heating, L’
breakover, and the loads such as inlet valve, pump, motor and so on are
energized.
2. Machine door unlock:
After the washing program ends, the MCU sends out an order of unlocking, the
SCR controls the door locks L and N to connect, and after 3 to 5 seconds, the PTC
temperature falls, L’ breaks, and the unlocking operation is finished.
Test points
and result
Test Points Result Remarks
3-4 1000 At 77°F (25°C)
4-5 0
3-5 220-240V Voltage Input
Circuit in the PCB / Wiring Diagram
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