LG LXFS28596 Series, Service Manual

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Refrigerator room lamp doesn’t work
1
Check the Refrigerator door switch.
Does it feel sticky?
Yes
No
6
Explain to customer
Change the
Door S/W
S/W Resistance [
Ω]
Door
Open Infinity
Close 0
Voltage [V]
CON5
8
th
pin ~ 7
th
Pin
12V
2
Check the door S/W resistance.
Is it correct compared with table?
No
Yes
Change the
Door S/W
Door S/W
3
Check the PCB Voltage.
Is CON7 33
th
pin ~ 34
th
pin
voltage 12V?
No
Yes
Change the
PCB
4
Check the LED Lamp voltage.
Is it 0~2V? (While door closed)
No
Yes
Change the
Door S/W
5
Check the LED Lamp voltage.
Is it 12V? (While door open)
No
Yes
Change the
LED Lamp
CON5