Voltage Test Points On The Control Board - Mitsubishi Electric CITY MULTI PEFY-AF1200CFM-E Technical & Service Manual

[ VIII Troubleshooting ]

3. Voltage test points on the control board

CN20
CN52
CN51
CN41
CN4F
CN60
CN7V
CN3A
CNP
CN90
CNT
CND
F901
HWE13100
CN21 CN29 CN22 CN30 CN32
CN2M CN3T
CN52
CN51
CN41
CN60
SW11
CN7V
SW12
CN4F
SW1
SW14
CN3A
SW3
SW8
SW5 CNP
SWC
CN90
SW2
CNT
CND
SW7
SWE
F901
SW4
CN2M For M-NET transmission cable
LED2
CN3T
LED1
LED2
SW4
SWE
SW7
SW2
SW5
LED1
SWC
SW8
SW3
SW14
SW1
SW12
SW11
CN32
CN30
CN22
CN29
CN21
CN20
- 23 -
Remote display
Centralized control
JAMA standard HA terminal A
Linear expansion valve 12VDC
pulse output
Linear expansion valve 12VDC
pulse output
Float switch
For MA remote controller cable
connection
(10 - 13 VDC (Between 1 and 3.))
Drain-up mechanism output (208-
230 VAC)
Fan motor output (208-230 VAC)
Transformer (208-230 VAC)
Power supply voltage (208-230
VAC)
Fuse 6.3A 250V
connection (24 - 30VDC)
Transformer
Main power supply
Power supply for MA remote con-
troller
Model setting
Emergency operation
Model setting
Capacity code setting
Voltage setting
Option setting
Mode setting
Mode setting
Connection No. setting
Function setting
10's digit address setting
1's digit address setting
Remote switch
Humidity sensor
Thermistor (inlet temp. detection)
Thermistor (piping temp. detec-
tion/gas)
Thermistor (piping temp. detec-
tion/liquid)
Thermistor (outlet temp. detec-
tion)
GB