Up/Down Air Direction Louver Does Not Operate; Remote Controller Does Not Operate - LG LV-B2420CL Service Manual

Possible Trouble 3
Is IC01M operated
normally?
YES
Is the PIN 1 of
CN-UP/DOWN DC12V?
YES
Check the step motor
and connector
(CN-UP/DOWN 1,2)
Possible Trouble 4
Is the battery consumed
much?
NO
Is the PIN 8 of CN-DISP
DC5V?
YES
Is the connection of
CN-DISP all right?
YES
Exchange receiver ass'y

: Up/Down Air direction louver does not operate.

NO
NO

: Remote controller does not operate.

YES
NO
NO
–54–
Exchange IC01M
Check the main P.C.B
DC12V pattern
Exchange the battery
Check the main P.C.B
DC5V pattern
Connect CN-DISP exactly