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When the horizontal louver does not operate.
Trouble 5
• Confirm that the vertical louver is normally geared with the shaft of Stepping Motor.
• If the regular torque is detected when rotating the vertical louver with hands ⇒ Normal
• Check the connecting condition of CN-U/D Connector
• Check the soldering condition(on PCB) of CN-U/D Connector
• Confirm that there is DC +12V between pin
• Confirm that there is a soldering short at following terminals.
- Between
,
41
42
- Between
,
4
5 , 6
- Between
,
10
11 , 12
• Confirm the assembly condition that are catching and interfering parts in the link of the
vertical louver
Check the operating circuit of the vertical louver
,
and
of MICOM
43
44
and
of IC01M
7
and
of IC01M
13
If there are no problems after above checks.
of CN-U/D and GND.
Troubleshooting Guide
Service Manual 73
- Quick Links:
- Lg Model Name
- Schematic Diagram
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