Toshiba RAV-SM406BT-E Service Manual page 23

5-1-3. Connection of Both Wired (Simple) Remote Controller and Wireless Remote Controller
Indoor unit
#1 (Heder)
Wireless remote controller
Display LED
Receive
circuit
CPU
Buzzer
DC5V
Power Remote controller
circuit communication circuit
A
Indoor control P.C. board (MCC-1631)
Drain
pump
Indoor
fan motor
Power circuit
DC280V
∗ "1:1 model" connection interface
U3
Central remote
controller (Option)
U4
Receiver P.C. board
Function setup SW
Temporary
operation SW
B
A B
DC20V
Remote controller
communication circuit
DC5V
DC12V
Driver
External
CPU
output
TVP88CH47FG
(TMP88PH47FG) Run
Alarm
Defrost
Thermo. ON
COOL
Fan motor
HEAT
control circuit
FAN
(Option)
P.C. board
(MCC-1440)
TCC-LINK
communication circuit
Wired (Simple) heder remote controller
(Max. 2 units)
Display Function
LCD
Display
CPU
LED
DC5V
Remote controller
communication circuit
A B
CPU
H8/36109
receive circuit
AC
synchronous
signal input circuit
1 2 3
1 2 3
Outdoor unit
– 23 –
Schedule remote controller
Display
setup LCD
Key
switch
CN2
CN1
Power
DC5V
circuit
∗3
Power
circuit
#2
(Follower)
A
EEPROM2
EEPROM1
TA sensor
TC sensor
Same as left
∗2
TCJ sensor
Float input
HA
Serial send/
1
Outdoor unit
Up to 8 units are connectable. ∗1
∗1 However, if "1:1 model connection interface" is
connected, Max. 7 units are connectable.
∗2 Connect "1:1 model connection interface" to only
1 unit and connect 1 "1:1 model connection
interface" to the header unit.
∗3 It is unavailable to connect the Schedule remote
controller to the simple wired remote controller.
LCD
driver
Function
setup
CPU
Key
switch
Secondary
battery
#3
(Follower)
B A B
Same as left
∗2
2 3 1 2 3
Outdoor unit