4-5
Copyright © LG Electronics Inc. All rights reserved.
Only training and service purposes
Infinite switch
(Double units):
LF,RF switch
1. Refer to page 3-6 for the servicing procedure.
2. Set the Multiple meter scale to the R x 1000.
3. Disconnect all wires from infinite switch.
4. Push in and turn left knob to check the single type.
5. When turn on/turn off the knob, position measure
the resistance between P1 to 2.
6. When turn on/turn off the knob, position measure
the resistance between P2 to 4 and P2 to 4a.
Components Test procedures Results
4
P1
2
P2
S2
S1
4a
4
P1
2
P2
S2
S1
4a
4
P1
2
P2
S2
S1
4a
4
P1
2
P2
S2
S1
4a
4
P1
2
P2
S2
S1
4a
4
P1
2
P2
S2
S1
4a
22
1
A B
4
P1
2
P2
S2
S1
4a
4
P1
2
P2
S2
S1
4a
4
P1
2
P2
S2
S1
4a
4
P1
2
P2
S2
S1
4a
4
P1
2
P2
S2
S1
4a
4
P1
2
P2
S2
S1
4a
4
P1
2
P2
S2
S1
4a
4
P1
2
P2
S2
S1
4a
22
1
A B
4
P1
2
P2
S2
S1
4a
4
P1
2
P2
S2
S1
4a
4
P1
2
P2
S2
S1
4a
4
P1
2
P2
S2
S1
4a
4
P1
2
P2
S2
S1
4a
4
P1
2
P2
S2
S1
4a
22
1
A B
4
P1
2
P2
S2
S1
4a
4
P1
2
P2
S2
S1
4a
4
P1
2
P2
S2
S1
4a
4
P1
2
P2
S2
S1
4a
4
P1
2
P2
S2
S1
4a
4
P1
2
P2
S2
S1
4a
4
P1
2
P2
S2
S1
4a
4
P1
2
P2
S2
S1
4a
22
1
A B
4
P1
2
P2
S2
S1
4a
4
P1
2
P2
S2
S1
4a