Toshiba RAV-SM304SDT-TR Service Manual page 50

8-1-2. Connection of Wireless Remote Controller Kit
Indoor unit
#1 (Master)
Indoor control P.C. board (MCC-1570)
Drain
pump
Indoor
fan motor
Power circuit
DC280V
* Case of TCC-LINK adapter
Case of TCC-LINK adapter
TCC-LINK
U3
Central controller
U4
(Option)
Wireless remote controller kit
Receiver P.C. board (MCC-1504)
Display LED
Receive circuit
Buzzer MCU
DC5V
Power Remote controller
circuit communication circuit
A B
DC20V
Remote controller
communication circuit
DC5V
DC12V
Humidifier output
Driver
Outside
output
MCU
Run
Warning
Defrost
Thermo. ON
COOL
Fan motor
HEAT
control circuit
FAN
(Option)
TCC-LINK
adapter P.C. board
(MCC-1440)
TCC-LINK
communication circuit
Function setup SW
Grille up/down SW
Temporary
operation SW
EEPROM
TA sensor
TC sensor
TCJ sensor
MCU
Float input
HA
Auto grille
panel
Serial send/
receive circuit
AC
synchronous
signal input circuit
1 2 3
1 2 3
Outdoor unit
Up to 8 units are connectable. ∗1
∗1 However Max.7 units are connectable in case of mounting network adapter
when two wireless remote controller kit are connected.
∗2 The network adapter is mounted to only 1 unit.
TCC-LINK adapter is mounted to the master unit.
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#2 #3
(Follower) (Follower)
A B A B
Same as left Same as left
∗2 ∗2
1 2 3 1 2
Outdoor unit Outdoor unit
3