Indoor Control Circuit; Indoor Controller Block Diagram - Toshiba RAV-SM567CTP-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-1643)
Louver
motor
Drain
pump
Indoor
fan motor
Power circuit
DC280V
* Case of "1:1 model" connection interface (Option)
U3
Central controller
(Option)
U4
SVM-13050.indb 23 SVM-13050.indb 23

5. INDOOR CONTROL CIRCUIT

Wired ( simple ) m a t s r e e r m o e t
Display LCD
Display LED
CPU
Remote controller
communication circuit
A B
DC20V
Remote controller
communication circuit
DC5V
DC12V
Driver
Outside
output
Run
Warning
Defrost
Thermo. ON
COOL
Fan motor
HEAT
control circuit
FAN
P .C. board
(MCC-1440)
TCC-LINK
communication circuit
c o n r t l o e l ( r M a . x 2 u n t i ) s
Function setup Display LCD
Key switch
CN2
CN1
DC5V
Power circuit
∗3
EEPROM
TA sensor
TC sensor
TCJ sensor
CPU
Float input
HA
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 "1:1 model" connection interface
when two wired (simple) remote controllers are
1 2 3
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.
Outdoor unit
∗3 Connection of the schedule timer to the simple
remote controller is unavailable.
– 23 –
FILE NO. SVM-13050
Schedule i t m r e
LCD driver
Function setup
CPU
Key switch
DC5V
Power Secondary
circuit battery
#2 #3
(Follower) (Follower)
A B A B
Same as left Same as left
∗2 ∗2
1 2 3 1 2 3
Outdoor unit Outdoor unit
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