LG LUTE4619SN Service Manual page 59

Components
Infinite switch (Triple units): 7. When turn on/turn off the knob, position measure the resistance
RF switch
8. When turn on/turn off the knob, position measure the resistance
9. After check the single type, check the dual type at the same
Test procedures
between S1 to S2
2 2
P1 P1
4 4
4a 4a
P2 P2
4b 4b
S2 S2
S1 S1
between P2 to 4b
2 2
P1 P1
4 4
4a 4a
P2 P2
4b 4b
S2 S2
S1 S1
procedure.
Infinite Switch
Triple type LF
Knob Position
OFF P2 – 4b
ON P2 – 4b
Others are same as dual circuits
4-9
Results
Results
Infinite(open circuit)
Continuity(short circuit)