5-8
Electrical Shock Hazard
Disconnect power before servicing.
Replace all parts and panels before operating.
Failure to do so can result in death or electrical shock.
WARNING
MAIN CONTROL BOARD
Refer to page 4-12 for the procedure for accessing the main control board.
NOTE:
See the chart for the main control board test specifications.
1
1
2
3
P8
P4
1
1
P3
1
1
P5
P7
P6
PLUG PIN #
DESCRIPTION
OUTPUT
CONDITION
P2
1
Communication Line
N/A
2
Display Voltage
12 VDC
Measured at pins 2 & 3
3
GND
GND
P3
1
Ref. Thermistor
GND
2
Frz. Thermistor
GND
3
Ref. Thermistor Output
5 VDC
Measured at pins 1 & 3
4
Frz. Thermistor Output
5 VDC
Measured at pins 2 & 4
P4
1
Ref. Door Sw Enable
120 VAC
2
Frz. Door Sw Enable
120 VAC
3
N/A
4
Ref. Door Input
120 VAC Voltage present when door is open
5
Ice Maker Valve Input
120 VAC Voltage present when ice maker is energized
6
Dispenser Valve Input
120 VAC Voltage present when dispenser valve is energized
7
Bimetal Input
120 VAC Voltage present when bimetal is closed
8
Frz. Door Input
120 VAC
P5
1
AC GND
AC GND
2
AC L1
120 VAC
3
AC Neutral
AC Neutral
4
AC Neutral
AC Neutral
5
AC L1
120 VAC
P6
1
Condenser Fan
120 VAC Voltage present when condenser fan is on
2
N/A
3
N/A
4
Defrost Heater
120 VAC Voltage present when defrost heater is on
5
Ice Maker Enable
120 VAC
Voltage present when I/M bail arm is down & I/M
is active
P7
1
Air Door
2
Air Door
3
Compressor Drive
3 - 6 VDC Measured at pins 3 & 8
4
Evap. Fan Feedback
N/A
5
Evap. Fan Constant
12 VDC
Measured at pins 5 & 9
6
Air Door
7
Air Door
8
Compressor Drive
3 - 6 VDC Measured at pins 3 & 8
9
Evap. Fan Ground
Evap. GND
10
Evap. Fan Run Voltage
5 - 12 VDC Measured at pins 9 & 10
Содержание KBFC42FS
Страница 8: ...1 4 NOTES ...
Страница 10: ...2 2 NOTES ...
Страница 22: ...3 12 NOTES ...
Страница 54: ...4 32 NOTES ...
Страница 66: ...6 4 NOTES ...
Страница 67: ...7 1 WIRING DIAGRAMS NOTE IM Solenoid valve and evap cover grounded through mounting ...
Страница 68: ...7 2 UNIT COMPARTMENT To Freezer Section To Refrigerator Section ...
Страница 69: ...7 3 REFRIGERATOR SECTION ...
Страница 70: ...7 4 FREEZER SECTION ...
Страница 71: ...7 5 REFRIGERANT ...
Страница 72: ...7 6 NOTES ...
Страница 76: ......