4. WIRING DIAGRAM

4-1. Indoor Unit

1

RAYSINFRAREDRECEIVE

INDICATIONAND PARTS

 

 

 

 

 

LOUVER MOTOR

 

HEAT

 

SWITCH PCB

EXCHANGER

 

MCC-1428B

SENSOR

 

(TCJ)

 

 

 

CN101 1 2 3

FOR FLOAT SWITCH

 

 

1 2

WHI GRY GRY

(OPTION)

When you use float

1 2

 

switch you should cut J401

 

 

 

 

 

 

1 2 3

CN402

 

 

 

 

 

 

 

 

 

 

 

 

 

CN100 1 2 3

1 2

CN05

1 2

CN03

BLK

 

THERMO

 

 

WHI

 

 

 

 

J401

 

 

2

2

 

SENSOR

10 10

10 10

 

 

 

 

BLK

 

 

 

 

 

 

(TA)

9

9

BLU

9

9

4

POWER

DC12V

 

 

1

1

BLK

 

 

8

8

BLU

8

8

SUPPLY

DC5V

IC03

 

2 2

 

HEAT

7

7

BLU

7

7

 

CIRCUIT

 

 

 

1

1

BLK

 

EXCHANGER

6

6

BLU

6

6

C02

 

 

 

CN01

 

 

SENSOR

5

5

BLU

5

5

 

 

R506

 

 

 

 

(TC)

BLU

 

 

 

 

 

 

 

 

 

4

4

4

4

DB01

 

 

 

 

 

 

 

 

 

3

3

BLU

3

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

2

BLU

2

2

 

 

CR502

 

 

1 1

 

 

 

1

1

BLU

1

1

R01

 

 

CR501

 

WHI 1 1 WHI

CN25

 

CN13

 

C01

 

 

 

2

2

 

 

 

 

 

 

 

 

 

 

3

3

 

2 2

 

 

 

BRW

 

 

5

 

RY501

 

 

4

4

RED

3 3

RED

 

 

1

1

 

 

 

 

5

5

 

4 4

 

 

 

RED

2

2

 

 

 

C501

CN10

BLK

5 5

BLK

 

 

ORN

3

3

 

 

MCC-1428A

 

 

 

 

 

6 6

 

 

 

YEL

4

4

 

 

 

 

 

 

 

 

 

 

 

 

PNK

5

5

 

 

 

 

 

3

3

 

3 3

 

 

 

BLU

6

6

 

 

 

 

 

BRW

BLU

 

 

 

CN07

IC04

C15

R405

CR401

2

2

GRY

2 2

PUR

 

 

 

 

 

 

 

1 1

YEL

1 1

GRY

 

 

 

 

 

 

 

 

 

 

CN11

 

 

FAN-MOTOR

 

 

 

 

 

 

 

RY401

 

 

 

 

 

 

 

 

 

 

 

 

R507

 

 

 

 

 

 

 

 

100”C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R09

R21

 

 

 

23

FOR DRAIN PUMP

 

 

 

 

 

 

 

 

 

 

1

 

(OPTION)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R22

FUSE

 

 

 

 

CN401

250VAC

 

 

 

 

 

 

 

 

 

 

 

SG01

F01

3

 

 

 

 

 

 

 

 

 

 

 

T6.3A

 

 

 

 

 

BLK

P04

CN30

 

CN31

CN23

 

 

 

 

 

 

 

 

BLK

WHI

RED

INDOOR

GRN&YEL

 

 

2 1 2 3

INDOOR

 

 

TERMINAL

 

 

BLOCK

UNIT

OUTDOOR

UNIT

SIMPLE CHECK POINTS FOR DIAGNOSING FAULTS

Check items

Diagnosis result

 

 

 

1

OPERATION

Check to see if OPERATION indicator goes on and off when the main switch

indicator

or breaker is turned on.

 

 

 

 

 

 

 

2

Terminal

Check the power supply voltage between

1

- 2 (Refer to the name plate.)

block

Chack the fluctuate voltage between 2 -

3

(DC15 to 60V)

 

 

 

3

Fuse

Check to see if the fuse blows out. (Check the varistor. : R22, R21)

6.3A

 

 

 

 

 

 

4

DC 5V

Check the voltage at the No.8 pin on CN13 connector of the infrared receiver.

(Check the transformer and the power supply circuit of the rated voltage.)

 

 

 

5

DC 12V

Check the voltage at the brown lead of the louver motor.

(Check the transformer and the power supply circuit of the rated voltage.)

 

 

 

 

 

Color

Identification

BRW : BROWN

RED : RED

WHI : WHITE

YEL : YELLOW

BLU : BLUE

BLK : BLACK

GRY : GRAY

PNK : PINK

ORN : ORANGE GRN&YEL : GREEN& YELLOW

GRN : GREEN

PUR : PURPLE

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Image 11
Toshiba RAV-SM560XT-E, RAV-SM800XT-E service manual Wiring Diagram, Color Identification