Toshiba RAV-GM901CTP Series Service Manual page 21

5-1-3. Connection of Both Wired (Simple) Remote Controller and Wireless Remote Controller Kit
Indoor unit
#1 (Header)
Wireless remote controller kit
Display LED
Receive
circuit
CPU
Buzzer
DC5V
Power Remote controller
circuit communication circuit
A B
Indoor control P.C. board (MCC-1643)
DC20V
DC5V
DC12V
Louver
motor
Drain
pump
Indoor
fan motor
Power circuit
DC280V
* Case of "1:1 model" connection interface (Option)
U3
Central controller
(Option) communication circuit
U4
Wired (simple) master remote controller
Receiver P.C. board Display
LCD
Function setup SW
Display
LED
Remote controller
communication circuit
A B
Remote controller
communication circuit
Driver
Outside
output
Run
Warning
Defrost
Thermo. ON
COOL
HEAT
FAN
P.C. board
(MCC-1440)
TCC-LINK
(Max. 2 units)
Function
setup
Key
CPU
switch
DC5V
Power
circuit
A B
EEPROM
TA sensor
TC sensor
TCJ sensor
CPU
Float input
HA
Serial send/
receive circuit
AC
synchronous
signal input circuit
1 2 3
Up to 8 units are connectable. ∗1
∗1 However Max.8 units are connectable in case of
mounting "1:1 model" connection interface.
∗2 The "1:1 model" connection interface is mounted
1 2 3
to only 1 unit.
"1:1 model" connection interface is mounted
to the header unit.
∗3 Connection of the schedule timer to the simple
remote controller is unavailable.
∗4 In the left system, set the wireless remote
Outdoor unit
controller side as the follower remote controller
when using the wired (simple) wired remote
controller as the header remote controller.
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Schedule timer
Display LCD
LCD driver
Function
CN2
CPU
CN1
DC5V
∗3
Power Secondary
circuit battery
#2 #3
(Follower) (Follower)
A B A
Same as left Same as left
∗2 ∗2
1 2 3 1
Outdoor unit Outdoor unit
setup
Key
switch
B
2 3