Indoor Control Circuit; Indoor Controller Block Diagram - Toshiba RAV-SM564UT-E Service Manual

8-1. Indoor Controller Block Diagram

8-1-1. Connection of Main (Sub) Remote Controller
Indoor unit
#1 (Master)
Indoor control P .C. board (MCC-1570)
DC20V
DC5V
DC12V
× 4
Louver
motor
Drain
pump
Indoor
fan motor
Power circuit
DC280V
* Case of TCC-LINK adapter
Case of TCC-LINK adapter
TCC-LINK
U3
Central controller
communication circuit
U4
(Option)
Tel: 01823 665660
Heronhill - for all your Toshiba requirements

8. INDOOR CONTROL CIRCUIT

Main (sub) master remote controller (Max. 2 units)
Display LCD
Display LED MCU
Remote controller
communication circuit
A B
Remote controller
communication circuit
Humidifier output
Driver
Outside
output
MCU
Run
Warning
Defrost
Thermo. ON
COOL
Fan motor
HEAT
control circuit
FAN
(Option)
TCC-LINK
adapter P .C. board
(MCC-1440)
TCC-LINK
www.heronhill.co.uk
Function setup Display LCD
Key switch
CN2
CN1
DC5V
Power circuit
∗3
EEPROM
TA sensor
TC sensor
TCJ sensor
MCU
Float input
HA
Auto grille
panel
Serial send/
receive circuit
AC
synchronous
signal input circuit
1 2 3
Up to 8 units are connectable. ∗1
∗1 However Max.7 units are connectable in
case of mounting network adapter when two
main (sub) remote controllers are connected.
1 2 3
∗2 The network adapter is mounted to only 1 unit.
TCC-LINK adapter is mounted to the master unit.
∗3 Connection of the weekly timer to the sub
remote controller is unavailable.
Outdoor unit
– 58 –
Weekly timer
LCD driver
Function setup
MCU
Key switch
DC5V
Power Secondary
circuit battery
#2 #3
(Follower) (Follower)
A B A
Same as left Same as left
∗2 ∗2
1 2 3 1 2
Outdoor unit Outdoor unit
Fax: 01823 665807
B
3