LG LS-J0761NL Service Manual page 60

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
• 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 ,
- Between ,
4 5 , 6
- Between ,
10
• 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
and of IC01M
7
and of IC01M
11 , 12 13
If there are no problems after above checks.
of CN-U/D and GND.
-60-
Normal