Circuit Board Components; Outdoor Unit Control Board - Mitsubishi Electric PUHY-P250YNW-A Service Handbook

[4-2 Circuit Board Components ]

4-2

Circuit Board Components

4-2-1

Outdoor Unit Control Board

CN603
Cooling fan control signal output
Inverter reset signal output
CN600
9 VDC input
GND
12 VDC input
GND
SW4-6
Dip switch
Actuator drive output
CNUSB
USB memory connector
CNRYA
72C drive signal
CNAC
L1
N
F001
250 VAC
3.15A T
Sensor input
*For information about the display of SW4 function settings, refer to the following page(s). [5-1-1 Outdoor Unit Switch Func-
tions and Factory Settings]
BS_04_C
CNPS
GND
5 VDC output
CN604
Power-supply
Pressure switch
signal output
error signal input
GND
TP1,2
CNPW
Indoor-outdoor
30 VDC output
transmission
GND
CN40
check pin
30 VDC output
Centralized control system
GND
power supply ON
CN4/4A/4B/4C
CN110
Serial communication
signal output
GND
Serial communication
signal input
GND
CN41 Transmission line
Centralized control ground terminal
system power
TB3
supply OFF
Indoor-outdoor transmission
terminal block
Open-phase detection signal input
GND
CN51
12 VDC output
Compressor ON/OFF signal output
Error signal output
SWP3
Push switch
(Function setting)
LEV
Drive signal output
LED301
Maintenance LED
SWU1,2
Address
SW101
Dip switch
Sensor input
CNFG
Ground
TB7
Centralized control transmission
terminal block
5
chapter 4 -