Product specifications

5-2-5 When the air swing motor is not operated
1) Check points
(1) Is the voltage of the power source normal ?(AC198V ~ AC264V)
(2) Is the electric wire in good contact ?(CN71, RY71)
(3) Is the swing motor connector in good contact?(CN71)
(4) Is the terminal connected to the swing motor in good contact?
(5) Is the output voltage of the IC01(KA7812) and IC02(KA7805) normal?
Turn off the power, and then turn it on again five
seconds later.
Replace the air-swing motor.
Dose the buzzer sound, when the power on?
Does the air-swing motor operate when
pressing the air-swing button of the remote control?
Is the IC03(MAIN PCB) output normal?
When the air-swing motor is on, IC03(MAIN PCB)
No. 12 pin ➝ Low
Does the relay(RY 75) operate normally?
When the air-swing motor is operated, the
RY74 should be operated.
Go to the clause "No power".
Normal operation.
• Check the IC03(MAIN PCB) for a short
and cold soldering.
• Replace the IC03(MAIN PCB).
• Check the relay coil resistance.
(Normal: About 400Ω)
• Replace the relay.
• Check the air-swing motor resistance.
(0Ω : short, ∞Ω : open)
N
Y
N
Y
Y
Is the air-swing motor normal?
Y
Y
N
Check whether the “COOL” LED lamp is on, and the
operation starts when pressing the ON/OFF button of the
remocon?
Go to the clause of “when the remocon
dose not operated”
Y
N
N
N
5-6 Samsung Electronics
AW126JB-2 6/27/98 10:40 AM Page 10