Samsung APH289SEF - Page 30

Troubleshooting
29Samsung Electronics
1. Causes of Failure
1) Cut or poor contact of motor connecting harness of the Air flow blade(right/left) of left side.
2) Defect by device hanging.
3) Poor Main PCB.
4) Poor stepping motor.
2. Inspection Items
1) Contact of motor connecting harness of the Air flow blade(right/left) of left side?
2) Output wave style from panel PCB port(PORT) during motor on?
3. Inspection Procedure
Turn on and turn the Air flow blade(right/left)
on with remote control.
Exchange the Air flow blade(right/left) of left side.
Check swing of the Air flow blade(right/left)
of left side, OK?
Check connector wire, cut or wrong?
Check voltage between Main PCB
CN201 No. #5, 6 and GND, DC12V?
Check wave style from Main PCB
CN201 No. #1, #2, #3, #4 spherical?
Good motor of the Air flow
blade(right/left) of left side.
Inspect and exchange
connection Harness.
Inspect and exchange U202.
Exchange Panel PCB.
No
Yes
No
Yes
Yes
Yes
No
No
5-3-4 When the Air flow blade(right/left) of Left side does not operate.