LG LRV650TT Service Manual page 19

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MICOM FUNCTION AND CIRCUIT DIAGRAM
5-2-4. Load Drive Circuit
Load Type
Measuring Parts (IC2)
ON
Condition
OFF
5-2-5. 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
IC6
CON6
- 19 -
Top Maturing Heater
#13
Below 1V
12V
R14
R15
R16
Bottom Maturing Heater
#14
R17
16
R41
15
P40
18
P43
17
P42

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