LG TD-C7014 series Service Manual page 16

7 COMPONENT TESTING TIPS
Component
7.Door S/W
COM
NO
NC
8.Lamp holder
Test procedure
Measure resistance of the
Following terminal
1) Door switch knob :open
Terminal : "COM "-"NC "
(1-3)
Terminal : "COM "-"NO "
(1-2)
2) Door switch push :Push
Terminal : "COM "-"NC "
(1-3)
Terminal :"COM "-"NO "
(1-2)
Measure resistance of
terminal to terminal
Check result
Resistance value <1 Ω
Resistance value ÷
Resistance value ÷
Resistance value <1 Ω
Resistance value :
80 Ω~100 Ω
AC 230V,15W
1 6
Remark
The state that
knob is Pressed is
opposite to open
condition