Samsung UD18B1C2, UD26B1C2 1Checklist 1Is input voltage normal?, 2Troubleshooting procedure

Models: AD26B1C13 AD18B1C09 UD18B1C2 UD26B1C2

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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.

Is operating lamp blinking?

YES

Does operation start when swing button of

the remote control unit pushed?

NO

Voltage at pin #33 ~ #36 of micom (ICO4) change?(Squarewave)

YES

Volatge at pin #13, #14, #15, #16 of IC05 (KID65003)

change?(Squarewave)

YES

YES

NO

NO

Check as in the procedure "No Power parts".

Refer to page 11.

Normal

Micom (IC04) is faulty.

Driver IC05 (KID65003) is faulty.

YES

UP/DOWN louver motor is faulty.

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Samsung UD18B1C2, UD26B1C2, AD18B1C09, AD26B1C13 1Checklist 1Is input voltage normal?, 2Troubleshooting procedure