LG LSE3092ST Service Manual page 46

Components
Infinite switch
(Double units):
LF switch
Dual type
(single)
Dual type
(dual)
Test procedures
7. When turn on/turn off the knob, position measure
the resistance between 4 to 4a.
P1
4
4a 4a 4a 4a 4a 4a 4a
4a 4a 4a 4a 4a 4a P2
4a 4a 4a 4a
4a 4a 4a 4a 4a
S1
S2
8. After check the single type, check the dual type at
the same procedure.
Infinite Switch Knob Position
Off
LF
On
Off
LF
On
2
Results
P1 - 2 Infinite(open circuit)
P2 - 4 Infinite(open circuit)
P2 - 4a Infinite(open circuit)
Infinite(open circuit)
4 - 4a
P1 - 2 Continuity(short circuit)
P2 - 4 Continuity(short circuit)
P2 - 4a Infinite(open circuit)
4 - 4a Infinite(open circuit)
P1 - 2 Infinite(open circuit)
P2 - 4 Infinite(open circuit)
P2 - 4a Infinite(open circuit)
4 - 4a Infinite(open circuit)
Continuity(short circuit)
P1 - 2
Continuity(short circuit)
P2 - 4
Continuity(short circuit)
P2 - 4a
Continuity(short circuit)
4 - 4a
4-9
Results