LG LSFXC2476 Series Service Manual page 72

6
Check the Fan Motor voltage
Is Fan Motor voltage 11.4~12.6 V?
TEST MODE 1 Voltage [V]
CON7
10 h pin & 12 th pin
Yes
7
Check the Fan Motor voltage
Is Fan Feed Back voltage 0V, 5V?
TEST MODE 1 Voltage [V]
CON7
8 th pin & 12 th pin
No
8
Check the Fan Motor voltage
Is Fan PWM voltage 0V, 5V?
TEST MODE 1 Voltage [V]
CON5
4 pin & 5 pin
th th
No
9
Explain to customer
Replace
No
Main PCB
11.4~12.6V
Change the
Yes
motor
Not 0V, 5V
Replace
Yes
Main PCB
Not 0V, 5V
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