LG WF-HD120S Service Manual page 53

4-9-3. PUMP MOTOR ASSEMBLY
MICOM
Wiring
diagram
Pump Driving circuit
* Each circuits of loads in wiring diagram are all same.
Used to drain the tub
Function
Drain Pump
Test
points
(1) (1) (2)
(2)
Result
Test Points Test Points
Circuit in the MAIN PWB
5V
Rg
1 4
R
2 3
IC
CONNECTOR
Drain Pump
Result Result
(1) to (2) (1) to (2) 10-20 10-20
Vdc
Cg
Rs
Cs
Vac
PCB
PUMP
(1) (1) (2) (2)
52
Wiring Diagram
MAIN CONTROLLER
YL2 CN10
1 2 3 4 5 6 7
1 2
VL B L
BN RD OR YL GN BL
BK
/
WH
1 1 2 3 4 5 2 3 5 8 1 2 3
6 7
CN8 CN7
SUB
YL5 CN6
1 3 6 5
BL BK WH
/WH
3 2 1
BK
BL
/ WH
PUMP
8
4 5 6 7
3 4 2