LG RC9055*P*Z Service Manual page 16

7 COMPONENT TESTING TIPS
Component
7. Door S/W
8.LED Lamp.asm
9.Compressor set
10.OLP
11. Cooling fan
12. Comp capacitor
Test procedure
Measure resistance of the
Following terminal
1) Door switch knob : open
Terminal : "COM"- "NC"
1
(1-3)
2 Terminal : "COM"- "NO"
(1-2)
2)Door switch Knob : close
Terminal : "COM"- "NC"
1
(1-3)
2 Terminal : "COM"- "NO"
(1-2)
Measure resistance of the
Following terminal
Red housing
-.2wire (BL & RED)
Measure resistance of the Measure resistance of the
Following terminal Following terminal
Terminal : "C"- "R" at 25
1 1
2 2 Terminal : "C"- "S" at 25
Measure resistance of the
Following terminal
Terminal : "1"- "3" at 25
1
Measure resistance of the
Following terminal
Red housing
-.2wire (BL & RED)
Measure capacitance of
Terminal to terminal
16
Check result
Resistance value < 1Ω
1
2 Resistance value ÷
Resistance value ÷
1
2 Resistance value < 1Ω
DC 12V
Power on Check the
voltage in
terminal.
Measure resistance of the
Following terminal
Resistance value(25
1 Resistance: 8.64 7%Ω
RED & BLUE
2
Resistance: 2.59 7%Ω
BL & RED
Resistance value
1
DC 12V
Start-up Voltage: Up 6V
Rate current: 0.5A + 10%
Locked current: Under 1A
Capacitance value : 35 1.75
Check resistance
Stanby condition : 11.5Ω
1
(25 )
2 Comp operation condition :
35~38Ω (25 )
Remark
The state that
knob is Pressed is
opposite to open
condition