Samsung AD26B1C13 Service Manual page 17

3-3-6 When the UP/DOWN Louver Moter Does Not Operate. (Initial Diagnosis)
1) Checklist :
(1) Is input voltage normal?
(2) Is the UP/DOWN louver motor properly connected with the connector (CN61)?
2) Troubleshooting procedure
Remove power cord and plug in again in approx. 5 seconds.
Does operation start when swing button of
Voltage at pin #33 ~ #36 of micom (ICO4) change?(Squarewave)
Volatge at pin #13, #14, #15, #16 of IC05 (KID65003)
16
Is operating lamp blinking?
YES
the remote control unit pushed?
NO
YES
change?(Squarewave)
YES
UP/DOWN louver motor is faulty.
YES
Check as in the procedure "No Power parts".
Refer to page 11.
YES
Normal
NO
Micom (IC04) is faulty.
NO
Driver IC05 (KID65003) is faulty.