LG WF-HD120S Service Manual page 54

4-9-4. INLET VALVE ASSEMBLY
Wiring
diagram
Depending on the cycle and water temperature, the controller will energize the hot or cold water
Function
valve solenoids to meet the selected water temperature.
After pull out the connector of defective valve, check the resistance.
Test
points
and
Result
Circuit in the MAIN PWB
IC
MICOM
Inlet valve driving circuit
Wiring diagram
MAIN CONTROLLER
(1) (2)
(1) (2)
Vdc
Cg
Rg
PCB
CONNECTOR
RD6
1 2 3 4 5
1 2 1 2
WH BL GY WH OR
/ / /
BK WH RD
RINSE COLD JET
HOT
VALVE VALUE VALVE
VALVE
* Each circuits of loads in wiring diagram are all same.
(2)
(1)
(1) (2)
53
Rs
Vac
Cs
INLET
VALVE
Test Test (1)-(2) (1)-(2)
points points
Result Result 0.8-1.2 0.8-1.2