Toshiba RAV-SM304MUT-E Service Manual page 26

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-1402)
* None for
Duct type
Louver
motor
Drain
pump
*
Option for
Ceiling type
Indoor
fan motor
Power circuit
DC280V
∗ "1:1 model" connection interface
U3
Central remote
controller (Option)
U4
AMP Air Conditioning
Wired (Simple) heder remote controller
Receiver P.C. board
(MCC-1504)
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
(Max. 2 units)
Display Function
LCD setup
Display Key
CPU
switch
LED
DC5V
Remote controller Power
communication circuit circuit
A B
EEPROM
TA sensor
TC sensor
CPU
TCJ sensor
H8/3039
Float input
HA
Serial send/
receive circuit
AC
synchronous
signal input circuit
1 2 3
Up to 8 units are connectable. ∗1
∗1 However, if "1:1 model connection interface" is
∗2 Connect "1:1 model connection interface" to only
1 2 3
∗3 It is unavailable to connect the Central remote
Outdoor unit
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Central remote controller
Display LCD
LCD driver
CN2
CPU
CN1
DC5V
∗3
Power Secondary
circuit
#2 #3
(Follower) (Follower)
A B A
Same as left Same as left
∗2
1 2 3
Outdoor unit Outdoor unit
connected, Max. 7 units are connectable.
1 unit and connect 1 "1:1 model connection
interface" to the header unit.
controller to the simple wired remote controller.
Function
setup
Key
switch
battery
B
∗2
1 2 3