LG LS-B0760CM/B0760HM Service Manual page 54

Possible Trouble 3
Is the IC7 O.K?
YES
Is the voltage
of
CN-UP/DOWN NO
1DC12V?
YES
Check the step motor and
Connector (CN-UP/DOWN)
Possible Trouble 4
Is the battery
consumption
O.K?
YES
Is DC5V between 1 and 7 of
CN-DISP
YES
Is the connection
of CN-DISP all right?
YES
Exchange receiver asm
: Up/Down Air direction louver does not operate.
NO
NO
: Remote controller does not operate.
NO
NO
NO
- 54 -
Exchange the IC7
Check the P.C.B of
DC12V pattern
Exchange the battery
Check the P.C.B pattern
Connect CN-DISP
exactly