Wiring Diagram; Indoor Unit; Simple Check For Failure Diagnosis - Toshiba RAS-13UKV-E Service Manual

4-1. Indoor Unit

RAS-13UKV-E
COLOR IDENTIFICATIONBLU
BLK : BLACK
RED : RED
WHI : WHITE
YEL : YELLOW
BLU : BLUE
GRN & YEL: GREEN & YELLOW
CN01
(BLU)
BLK
1 1
BLK
2 2
HEAT EXCHANGER
CN03
SENSOR (TC)
(WHI)
BLK
1 1
BLK
2 2
THERMO SENSOR
(TA)
CN25 CN13
(WHI) (WHI)
BLU
1 1 1 1
BLU
2 2 2 2
BLU
3 3 3 3
BLU
4 4 4 4
BLU
5 5 5 5
BLU
6 6 6 6
BLU
7 7 7 7
BLU
8 8 8 8
BLU
9 9 9 9
BLU
10 10 10 10
WHI
11 11 11 11
MCC-861
1 4
Check items
1
OPERATION indicator
2
Terminal block
3
Fuse 3.15A
4
DC 5V
5
DC 12V
DC 325V
6
(DC310 to 340V)
Refer to the service data for the detailed failure diagnosis.

4. WIRING DIAGRAM

1 2
BLK WHI
CN24 CN23
FUSE
F01
3
T3.15A
AC 250V
R04
MAIN P.C. BOARD
MCC-867
Table 4-1-1 Simple check for failure diagnosis
Check to see if the OPERATION indicator goes on and off when the main switch or
breaker is turned on.
(Check the primary and secondary voltage of the transformer.)
Check the power supply voltage between
(Check the primary and secondary voltage of the transformer.)
Check the fluctuating voltage between
Check to see if the fuse blows out.
(Check the R04 of the varistor.)
Check the voltage at the No.4 pin on CN13 connector of the infrared receiver.
(Check the transformer and the power supply circuit of the rated voltage.)
Check for voltage at the white lead of the louver motor.
(Check the transformer and the power supply circuit of the rated voltage.)
Check for voltage at the No.1 pin on CN10 connector.
(Check the DB01, R05 and C03.)
TERMINAL
2
3
BLOCK
GRN & YEL
RED
CN21
LINE
FILTER
R05 DB01
C03
CN08
1 2 3 4
HA JEM-A
Diagnosis result

‚
and
– 15 –
INDOOR OUTDOOR
UNIT UNIT
CN10
6
(WHI)
RED
1 1
BLK
3 3
WHI
4 4
YEL
5 5
BLU
6 6
DC5V
5
DC12V
CN07
(WHI)
WHI
1 1
YEL
2 2
YEL
3 3
YEL
4 4
YEL
5 5
LOUVER MOTOR
‚
and . (Refer to the name plate.)
ƒ
. (DC 15 to 60V)
FAN MOTOR
DC MOTOR
1 1
2 2
3 3
4 4
5 5