LG AMNW07GDBL1 Service Manual page 81

Part 5. Trouble Shooting
Check Point
1. Check the power source.(230V ±15%)
2. Check the fan operation is right.
3. Check the current.
4. Check the install condition.
5. Check the CT Sensor Output signal
(36k - Check output the CT Sensor : DC 2.5±0.2V)
(54k - Check output pin 1.2 of the CT Sensor : 5V )
< Inverter PCB>
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Only for training and service purposes
IN/I
Red
<CT Sensing Check Point>
<CT Sensing Check Point>
- 80 -
GND
Vdc
Black
LGE Internal Use Only