LG AMNW07GDBL1 Service Manual page 52

Display
Title
code
Communication
03
Wired R/C
Wired R/C
12V S GND
12Vdc
V
Check the Volt.
Check Point
1. Check the wire connection. (Open / Short) → Repair the connection
2. Check the soldering state of connector. (Soldered poorly) → Repair or Change the PCB.
3. Check the volt. Of main PCB power source. (DC 12V) → Repair or Change the main PCB.
4. Check the installation of wired remote controller. (Noise interference) → Adjust the state of installation
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Only for training and service purposes
Cause of error
• Open / Short
• Wrong connection
Indoor Unit
12V S GND
12Vdc
V
Check the Volt.
Check point & Normal condition
• Connection of wire
• Main PCB Volt. DC12V
• Noise interference
CN-REMO
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Part 5. Trouble Shooting
LGE Internal Use Only