LG GC-W061 series Service Manual page 26

MICOM FUNCTION AND CIRCUIT DIAGRAM
6-2-4. Load Drive Circuit
Load Type
Measuring Parts (IC2)
ON
Condition
OFF
6-2-5. STEPPING MOTOR Operation Circuit (3-WAY VALVE)
According to a specified STEP numbers, send 'HIGH' and 'LOW' signals through MICOM PIN #16, 15, 18, and 17.
Revolving magnetism forms on the motor coil. Motor starts running.
COMP
#15
CON6
Top Maturing Heater
#13
Below 1V
12V
IC6
R14
- 26 -
Bottom Maturing Heater
#14
R15 R16 R17
16
R41
15
P40
18
P43
17
P42