Indoor Unit Control Board - Mitsubishi Electric PUHY-P250YNW-A Service Handbook

[4-2 Circuit Board Components ]
4-2-6

Indoor Unit Control Board

CNT
Power supply output
(to transformer)
CND
Power supply
input
(AC 220~240V)
F901
Fuse
CN2M
Indoor unit
transmission
line
CN3T
Power supply input
(from transformer)
10 -
chapter 4
CN3A
Remote controller connection
CN33
Lamp output
CN60
CNP
CN90 LEV output
Drain pump
Fan output output
LED2
SW1,2,3,4
Dip switch
CN51
Switch input
CN24
Control signal
output
CN31
Float switch input
Thermistor input
CN20
CN21
CN29
CN22
LED1
CN32
Switch input
SW5
SWC
Switching between
discharge/suction control
BS_04_C