Indoor Control Circuit; Indoor Controller Block Diagram - Toshiba RAV-SM564UTP-E Service Manual

5-1. Indoor Controller Block Diagram

5-1-1. Connection of Wired (Simple) Remote Controller
Indoor unit
#1 (Header)
Indoor control P .C. board (MCC-1570)
DC20V
DC12V
× 4
Louver
motor
Drain
pump
Indoor
fan motor
Power circuit
DC280V
* Case of "1:1 model" connection interface (Option)
U3
Central controller
(Option)
U4

5. INDOOR CONTROL CIRCUIT

Wired ( simple ) m a t s r e e r m
Display LCD
Display LED
CPU
Remote controller
communication circuit
A B
Remote controller
communication circuit
DC5V
Driver
Outside
output
CPU
Run
Warning
Defrost
Thermo. ON
COOL
Fan motor
HEAT
control circuit
FAN
P .C. board
(MCC-1440)
TCC-LINK
communication circuit
o e t c o n r t l o e l ( r M a . x 2 u n t i ) s
Function setup
Key switch
CN2
CN1
DC5V
Power circuit
∗3
EEPROM
TA sensor
TC sensor
TCJ sensor
CPU
Float input
Serial send/
receive circuit
AC
synchronous
signal input circuit
1 2 3
1 2 3
Outdoor unit
– 23 –
FILE NO. SVM-13010
Schedule i t m r e
Display LCD LCD driver
CPU
DC5V
Power Secondary
circuit battery
#2
(Follower) (Follower)
A B
Same as left
∗2
HA
1 2 3
Outdoor unit
Up to 8 units are connectable. ∗1
∗1 However Max.7 units are connectable in
case of mounting "1:1 model" connection interface
when two wired (simple) remote controllers are
connected.
∗2 The "1:1 model" connection interface is mounted
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.
Function setup
Key switch
#3
A B
Same as left
∗2
1 2 3
Outdoor unit