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Explain to customer
6
Check the Fan Motor voltage
Is Fan Motor voltage 8~14V?
Yes
Replace
Main PCB
No
7
Check the Fan Motor voltage
Is Fan Feed Back voltage 0V, 5V?
No
Change the
motor
Yes
CON8
CON8
TEST MODE 1
Voltage [V]
CON8
18
th
pin ~ 22
th
pin
Not 0V, 5V
TEST MODE 1
Voltage [V]
CON8
18
th
pin ~ 20
th
pin
8~14V
8
95