Outdoor Unit Control Pcb; Layout Diagram (Cr-Ch4872R) - Sanyo C4272R Service Manual

2-5 Outdoor Unit Control PCB

(1) Layout Diagram (CR-CH4872R)

Heat exchanger temperature (C1) sensor
Heat exchanger temperature (C2) sensor
MDC
EEPROM IC
Power LED
(D115)
Suction temperature (TS) sensor
Outdoor air temperature (TO) sensor
Fan motor plug (CN004)
II-9
2. Processes and functions
Compressor discharge temperature (TD) sensor
Refrigerant recovery switch
(S005)
Quiet mode plug (CN028)
Refrigerant System
address switch (S002)
EXCT plug (CN026)
Automatic address
setting switch (S001)
Snowfall sensor
Refrigerant System
address switch (S003)
Cooling test
Test pin (CN036)
Operation circuit fuse
(F002)
LED 1, 2
Serial 1 plug
Terminal plug (CN015)
Serial 2 plug
If the operation circuit fuse
(F002) has blown,
determine and correct the
cause for the blown fuse,
then change the socket
from the serial 1 plug to
the serial 2 plug.
Position detection plug
(CN003)
1
2
3
4
5
6
SM831148