III - 50
Service Procedures
3
SM830052
7
PCB (CR-X253GH) FOR INDOOR UNITS
5. PCBs and Their Location
CR-X253GH
0879_X_I
FUSE
CN42 (BLU)
: For wireless remote controller
FUSE
CHECK PIN
EXCT (RED)
: Forced thermostat
OFF input terminal
TEST PIN
DISP PIN
T10 (YEL)
: External input and
output terminal
E
2
P-ROM
Shipment state
: Pulse signal
Jumper cut
: Static signal
JP1 (Jumper wire)
: For sellecting the
signal of T10.