LG LRMVS3006 Series Service Manual page 70

Freezer room lamp doesn't work
1
The Switch senses if the door is
open or close.
When the door open, lamp On
When the door Close, lamp Of f
No
2
Check the door S/W resistance.
Is it correct compared with table?
Resistance [Ω]
No magent near
the switch
Door S/W
Magnet is near
the switch
Yes
3
Check the PCB Voltage. Is
CON7 7th pin ~ 8th Pin
voltage 11.4 ~ 12.6V?
Voltage [V]
CON7
11.4 ~ 12.6V
7th pin ~ 8th Pin
Yes
4
Explain to
Yes
customer
Check the LED Lamp voltage
Is voltage 11.4 ~ 12.6V?
Change the
No
Door S/W 5
Check the LED Lamp voltage.
Is it 0~2V? (While door closed)
Infinity
0
6
Change the
Check the LED Lamp voltage.
No
PCB
Is it 11.4 ~ 12.6V? (While door
open)
7
Explain to customer
-68-
Change the
No
LED Lamp
LED Lamp
LED Lamp
Yes
Change the
No
Door S/W
LED Lamp
LED Lamp
Yes
Change the
No
LED Lamp
Yes
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