LG LSXC22396S - Page 74

9
Explain to customer
TEST MODE 1 Voltage [V]
CON8
9
th
pin ~ 19
th
pin
2~4.5 VDC
6
Check the Fan Motor voltage
Is Fan Motor voltage 10~12V?
Yes
Replace
Main PCB
No
TEST MODE 1 Voltage [V]
CON8
9
th
pin ~ 12
th
pin
10~12 VDC
7
Check the Fan Motor voltage
Is Fan PWM voltage 2~4.5V ?
No
Replace
Main PCB
No
CON8
CON8
TEST MODE 1 Voltage [V]
CON8
9
th
pin ~ 10
th
pin
Not 0V, 5V
8
Check the Fan Motor voltage
Is Fan Feed Back voltage 0V,5V ?
No
Change the
motor
Yes
CON8
75
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