Toshiba MMK-AP0157HPUL Service Manual page 24

6-1-2. Connection of Wireless Remote Controller
Indoor unit
#1 Header unit
Indoor control P.C.
board (MCC-1696)
Receiver and
Display P.C. board
(WP-033)
Display LED
Receiver unit
Louver
motor
Indoor
fan motor
Power circuit
DC280V
Central control
remote controller
(Sold separately)
U3
Central control
communication circuit
DC20V
DC12V
DC5V
Driver
Buzzer
Outside
output
Warning/
Defrost/
Thermo. ON/
Fan motor
COOL/HEAT/
control circuit
DC15V
U4 A B
Remote controller
communication circuit
CPU
RL78/G13
Driver
Run/
AC
synchronous
signal input circuit
FAN
N
L
Power supply
208/230-1-60Hz
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Follower unit
#2
A
EEPROM
TA sensor
Same as
the left
TC sensor
TCJ sensor
HA
Wireless remote
signal setting
(A/B)
Bus communication
circuit
Power
supply
Outdoor
unit
U1 U2
Outdoor Unit
#3
B A B
Same as
the left
Power
supply
Outdoor
unit