mabe PSS21 Series, Service Manual

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Main Control Board Locator Box (Low-Voltage Side)
Connector Pin
Wire
color Component
Termination Pin-to-Pin Voltage
Reading
J1 1 Blue/Red
Thermistor # 1
Cooler
J1 pin 1 to pin 5 = 2.8
to 3.5 VDC
J1
2
Yellow
Thermistor # 2
Cooler
J1 pin 2 to pin 5 = 2.8
to 3.5 VDC
J1 3 Red White
Freezer thermistor
J1 pin 3 to pin 5 = 2.8
to 3.5 VDC
J1
4
Blue/White
Evaporator
thermistor
J1 pin 4 to pin 5 = 2.8
to 3.5 VDC
J1
5
Blue
Supply voltage
thermistor (5 VDC)
J1 pin 5 to J4 pin 3 =
5 VDC
J2 1 Blue
Tachometer of the
evaporator fan.
J2 pin 1 to pin 3 =
6.3 VDC
J2
2
Blue/White
Fan inlet
J2 pin 2 to pin 3 =
12 VDC
J2
3
White
Common fan
J2 pin 3 to pin 8 =
12 VDC
J2
4
Yellow/Black
Evaporator fan
J2 pin 4 to pin 3 = 12.4
VDC (high speed),
8 VDC (low speed)
J2
5
Yellow
Common fan
J2 pin 5 a pin 3 = 13.4
VDC (ventilador del cond
es de una velocidad)
J2
6
Black/White
Evaporator fan
J2 pin 6 a pin 3 = 0 VDC
(high speed), 3 VDC (low
speed)
J2 7
Not in use
Non applicable Non applicable
J2
8 Red
Supply of energy to
the fan (12 VDC)
J2 pin 8 to pin 6 =
13.4 VDC (high vel), 9
VDC (low vel)
J2 to 8
to J4 pin 3 = 13.4 VDC
Continues in next page.