GE PSH23PGRAFBB Guía Técnica De Servicio página 54

J2 Connector (Low-Voltage DC Side)
Component
Pin Wire Color
Termination
Evaporator fan
1 Blue
tachometer
2 Blue/White Model
3 White/Silver Fan Common
4 Yellow/Black Evaporator fan
5 Yellow Condenser fan
6 Black/White Fresh food fan
7 Tan CustomCool™ fan
Fan supply voltage
8 Red
(12 VDC)
Custom Cool Dual Damper +
Custom Cool Single Damper +
Custom Cool Single Damper -
Pin
1
2
3
4
5
Main Control Board
Input/
Pin-to-Pin Voltage Reading
Output
Input Not applicable to this model.
Input J2 pin 2 to pin 3 = 12 VDC
Common J2 pin 3 to pin 8 = 12 VDC
J2 pin 4 to pin 3 = 9.5 VDC (high),
Output
8 VDC (med), 6.5 (low)
J2 pin 5 to pin 3 = 10.5 VDC (high),
Output
7.5 VDC (med), 5.5 VDC (low)
J2 pin 6 to pin 8 = 12 VDC (high),
Common
10 VDC (med), 9 VDC (low)
Common J2 pin 7 to pin 8 = 12 VDC
Output J2 pin 8 to pin 3 = 12 VDC
Pin Wire Color
1 Red/Yellow
3 Black
6 White/Gray
7 Black
8 Yellow
9 Red
10 Orange
J4
Comm. 2-Way Digital
1
Comm. +12V
Comm. Common
5
J15
Inverter Common
Inverter Output J3
1
(Not Used for
Beverage Center Fan
1
AC Compressor)
J2 Quick Freeze Fan
Evaporator Fan (RPM)
1
Model Selector
3-Way Valve - Gray & White
Fan Common
3-Way Valve - Black
Evaporator Fan
3-Way Valve - Yellow
Condenser Fan
3-Way Valve - Red
Fresh Food Fan
3-Way Valve - Orange
10
Custom Cool Fan
Fan +12V 8
J1
FF Evaporator Thermistor
1
J5
FF Thermistor
1
FZ Thermistor
Custom Cool Dual Damper -
FZ Evaporator Thermistor
+5V
Model Selector
+5V
Model Selector
Custom Cool Thermistor
6
Model Selector
9 Model Selector
J1 Connector (Low-Voltage DC Side)
Wire Color
Red/Blue Fresh food evaporator thermistor
Yellow Fresh food thermistor
Red/White Freezer thermistor
Blue/White Freezer evaporator thermistor
Blue
Thermistor supply voltage (5 VDC)
Main Control Board
J3 Connector (Low-Voltage DC Side)
Component
Input/
Termination Output
Beverage center
Input
fan
QuickFreeze™ fan Input
3-way valve The 3-way valve coil receives 12-VDC pulses from the main
board to change the position of the valve. The pulses come
3-way valve
too quickly to measure with a volt meter.
3-way valve
3-way valve For test procedure see
3-way valve
Main Control Board
Component
Input/
Termination Output
Input
Input
Input
Input
Output
– 58 –
Pin-to-Pin Voltage Reading
J3 pin 1 to J2 pin 8 = 12 VDC
J3 pin 3 to J2 pin 8 = 12 VDC
.
3-Way Valve
Pin-to-Pin Voltage Reading
N/A
N/A
N/A
N/A
J1 pin 5 to J2 pin 3 = 5 VDC
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