Configuraion Of Control Circuit; Indoor Controller Block Diagram (Mcc-1643); In Case Of Connection Of Wired Remote Controller - Toshiba MMC-UP0181HP-UL Service Manual

8-1. Indoor controller block diagram (MCC-1643)

8-1-1. In case of connection of wired remote controller

Indoor unit
#1 (Header)
PMV
Louver
motor
Drain
pump
Option
Indoor
fan motor
Max.8 or 16 units are connectable.
(depending on connection system)
*1 The schedule timer can be connected
to only RBC-AMT∗∗∗.
8. CONFIGURATION OF CONTROL CIRCUIT
Wired (Simple) header remote controller
(Up to 2 units)
Display LCD
Display LED
EEPROM
Remote controller
communication circuit
Indoor control P.C. board
(MCC-1643)
DC20V
Remote controller
communication circuit
DC5V
DC12V
Outside output
Start/Alarm/Ready
Thermostat ON
COOL/HEAT/FAN
Fan motor
control circuit
DC
280V
Power
circuit
Function setup
Key switch
CPU
CN2
DC5V
Power
circuit
A B
MCU
Driver
L2 Uv(U1)
L1
Power supply
1Ø208/230V, 60Hz
- 31 -
Schedule timer
Display LCD
LCD driver
CN1
Function setup
CPU
Key switch
DC5V
* 1
Power Secondary
circuit battery
#2
(Follower)
A B
EEPROM
TA sensor
Same
as left
TC1 sensor
TC2 sensor
TCJ sensor
Float input
U1 U2
HA
L2
L1
Power
supply
Outdoor
unit
BUS
communication
circuit
Uv(U2)
Indoor/Outdoor
communication
U1 U2
Outdoor unit
#3
(Follower)
A B
Same
as left
U1 U2
L2
L1
Power
supply
Outdoor
unit