LG TD-C70070E - Door Switch and Lamp Holder Testing; WIRING DIAGRAM

16
COMPONENT TESTING TIPS
7
Component Test procedure Check result Remark
7. Door S/W
8. Lamp holder
Measure resistance of the
Following terminal
1) Door switch knob : open
①Terminal : “COM”- “NC”
(1-3)
②Terminal : “COM”- “NO”
(1-2)
2)Door switch push : Push
①Terminal : “COM”- “NC”
(1-3)
②Terminal : “COM”- “NO”
(1-2)
Measure resistance of
terminal to terminal
① Resistance value < 1Ω
② Resistance value ÷ ∞
① Resistance value ÷ ∞
② Resistance value < 1Ω
The state that
knob is Pressed is
opposite to open
condition
Resistance value :
80Ω~100Ω
AC 230V, 20W
COM
NC
NO