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8-2-1 Power Circuit
Power is supplied to the control board at the pin 11 and 9 of connector #1. (Refer to figure 1)
8-2-2 Load and Door Light Circuit (HV)
1. Load Drive Condition Check
To measure outputs of the control board, check voltages between the pins for the following components:
(Refer to figure 1)
Pin
Circuit
Number
Compressor
Con 1 Pin 1
Defrost Heater
Con 2 Pin 7
Ice Maker
Con 1 Pin 7
Pilot Valve
Con 2 Pin 1
2. Door Monitor Circuit (LV)
Measurement between
Refrigerator
pins 4 and 3 Con 8
Door Close
Door Open
FIGURE 1
Output
Pin
Voltage
Number
Con 1 Pin 3 115 VAC
Con 1 Pin 3 115 VAC
Con 1 Pin 3 115 VAC
Con 1 Pin 3 115 VAC
0 volts
PIN
5 volts
CONNECTOR 1
PIN
11
9
NEUTRAL
LIVE
CONNECTOR 2
PIN
7
DEF-HTR
CONNECTOR 8
1
2
RT-SNR
- 28 -
7
5
3
1
L (I/M)
N (I/M)
N
COMP
5
3
1
/
R-HTR
PILOT/V
3
4
R-DOOR S/W
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