Connection On Pcb - Sanyo MCO-5M Service Manual

Connection on PCB

The following shows connections of connector (CN) on main PCB.
Connector
CN1 Power transformer
CN2 Power supply
1 2:
CN4
3 4:
CN5 CO sensor
2
CN6 Door switch
CN8 Switch, display PCB (CN101)
1 2 CO
CN9
3 4 CO
Remote alarm output
CN10
1 2 Open during normal operation
CN11 Communication PCB (option)
CN12 3 4 Hinge sub heater (R), (L)
CN13 Buzzer
CN14 UV lamp relay (option)
CN15 Water sensor
CN16 O sensor
2
1 2 O
CN17
3 4 O
CN101 Display PCB (CN8)
The following shows connections of connector (CN) on power PCB.
Connector
CN301 Main PCB
1: Heater for heat control (6pcs)
CN302 3: Bottom heater (4pcs)
5: Front panel heater, Door heater (2pcs)
CN303 3: Agitating fan motor
Connects to
Overheat protect sensor
Temperature sensor
valve
2
auto changer valve (option)
2
valve
2
valve
2
Connects to
Usage
To supply the power to PCB.
To supply the power AC36V for
hinge sub heater
To supply the power to PCB.
To measure the temperature of
each parts.
Input from CO sensor
2
To detect the door opening.
To control CO valve ON and OFF.
2
Output of remote alarm contact
36VAC
For alarm
To check water level in humidifying
pan.
Input from O sensor
2
To control O /N
2
OFF.
To control heater
To control agitating fan motor.
27
#1-2: 8.5VAC
#3-4: 18VAC
#3-5: 18VAC
#1: 5VDC
#2: GND
#1:GND
#2:IN+
#3:IN-
#4:+15V
#1:GND
#1-2: 24VAC
#3-4: 24VAC
#1:COM
#2:NO
#3:NC
#1:VCC
#2:GND
#3:
#1:+5V
#2:GND
#3:GND
#4:O
#1-2: 24VAC
valve ON and
2
#3-4: 24VAC
#5-6: 24VAC
Use
Voltage
sensor input
input
2