Toshiba R410A Service Manual page 184

10-2. Outdoor unit
Positions to be checked on the interface P.C. board (MCC-1429)
CN01
For inter-unit cable between
indoor and outdoor units
BUS terminal
Terminator resistor
select SW30
SV61
CN309
SW41/42
CN311
SV51
CN310
SV2
CN312
SV3A
CN324
SV3B
CN313
SV3C
CN314
SV11
CN322
Dina-doctor
connecting terminal
CN800
SV12
CN319
Case heater 1
Case heater 2
Accumulator
heater
SV3D SV3E
CN323
SW06 to 14
CN03 backup
CN01 backup
RMV
CN300,301
4-way valve
CN317
SW01,02,03
7-segment LED
For outdoor unit cable
between outdoor units
CN03
Pressure sensor (Ps)
Pressure sensor (Pd)
Comp. case
thermo 2 input
Comp. case thermo
CN307
1 input
CN305
SW04,05,15
184
Option input/output
UART
CN508,509,510,
communication
515,501,512
CN600
Jumper select
Sensor input
TD1 , CN502
TD2 , CN503
TK1 , CN514
TK2 , CN515
TK3 , CN516
TK4 , CN523
TE1 , CN505
TL , CN521
TS1 , CN504
TO , CN507
TS2 , CN522
5V
GND
12V
3.3V
Connection of power
supply transformer
CN100
Option input/output
CN511
High pressure swith1
High pressure swith2
For transformer
power supply
CN401,402
For expansion BUS
power supply
CN325
L1, L2, L3, N-phase
input CN400