DOWNLOAD Sharp AY-X127E Service Manual ↓ Size: 1.99 MB | Pages: 45 in PDF or view online for FREE

17

R80

R20

JP15

JP16

JP4

JP13

TH2-2

TH2-1

PC2

PC1

C7

C8

C3

C4

OUT

(BLACK)

ZD1

C5

OUT

IN

IC3

D4

PRIMARY

FU1

250V

2.5A

T

SECONDARY

TRANSFORMER

D3

D1

LED101

LED

202

C102

PHOTO 

DETECTOR 

UNIT

CN201

CN101

C101

1

3

1

3

D2

C20

R26

ZD2

CN7 (FAN MOTOR)

NR1

C2

5

C21

CNR1

NF1

D6

15

2

1

2

( 2 )

7

SSR1

R22

9

C18

C19

R23

C1

A

( N )

JP11

RY1

( L )

IN

(BROWN)

FAN

MOTOR

CAPACITOR

JP12

R27

R25

3

4

2

2

4

3

R6

R21

D7

R44

R24

R4

R5

CN4(TH1)

R43

R42

R41

R40

1

SW1

C9

R29

IC80

8

CN1

CN2

1

1

3

R1

CN3

(LOUVER M)

5

(JP1)

(JP2)

(JP3)

(JP7)

(JP9)

(JP10)

(JP8)

C80

(JP4)

3

R9

R28

(JP99)

R12

3

CN8

R18

4 1

3

Q1

R7

R19

C12

C6

R3

C11

R15

R14

C15

C16

R81

5

MEMORY

(JP5)

(JP6)

D5

R11

32

33

20

POWER

ON

R10

IC2

8

C17

JP19 
JP18 
JP17

52

51

1

IC1

16

1

19

C10

(R31)64

(R39) 
(R37) 
(R35)

(R33)

(R38)

C14

(R36) 
(R34) 
(R30) 
(R32) 
(R45)

3

Q2

1

(R46)

OSC

9

R16

BZ

FB029

R13

FROM 
LOUVER
MOTOR

FROM 
FAN
MOTOR

TO
TERMINAL
BOARD 4P " 2 " 

FROM 
FAN
MOTOR

TO
TERMINAL
BOARD 4P " N " 

FROM
TERMINAL
BOARD 3P " L " 

FROM
TERMINAL
BOARD 4P " 1 " 

18

QPWBFB033JBE0-A

L4

R2

R1

JP30

JP29

JP10

R39

T8

JP15

R5

R11

PC2

PC1

B17

JP24

JP23

C2

C11

CN10

D5

Q53

R12

R13

R14

R15

R6

D4

T9

T7

CN3

5

1

CNR1

CNR2

NR2

WPE2

20A

250V

JP33

BLUE

BLUE

GRAY

QPWBFB033JBE0-B

BROWN

YELLOW

YELLOW

T10

R10

C15

C17

C16

JP7

JP1

JP13

JP12

JP2

10

1

BCN11

JP6

JP5

JP16

C27

C18

R25

R38

R36

R26

R27

C26

C23

R21

C21

R20

C22

C19

C20

JP28

JP27

T11

R8

R9

WPE3

CT1

RY2

D2

3A  250V

T5

C1

MRY1

BLACK

R3

R7

R17

R16

R24

R23

R22

R34

JP9

JP14

Q1

Q2

RY1

C24

R40

JP34

E

C

B

E

C

B

D3

D6

JP3

BCN12

Q3

E

C

B

LED1

JP8

JP4

C13

R4

D1

C12

NR1

T4

T3

SAI

20A

250V

JP21

T1

WPE1

JP22

L3

C4

C3

T6

JP26

T2

JP25

C14

60

55

50

45

40

35

33

64

5

10

R29

R31

R33

OUT 

IN 

R32

R18

C2

IC1

R30

R28

15

20

32

IC3

R37

R35

CN8

4

1

JP11 

C28

OSC1

1

3

1

CN4

1

3

DSGY-A829JBK0

BLUE

BROWN

G(Y)

RED

BLUE

F

MRY1

BCN13

FROM 

EARTH 

TERMINAL

FROM 

TERMINAL

BOARD " N "

FROM 

TERMINAL

BOARD " 2 "

FROM TERMINAL BOARD " 1 "

FROM 

WINTER KIT

(OPTION)

FROM 

FAN MOTOR  

FROM 

4 WAY VALVE

C9 " - "

TO PM1

(IPM)

FROM 

THERMISTOR

C7 " + "

PM1

(IPM)

TO

L1(REACTOR)

TO

PTC THERMISTOR  

FROM DB1 " 

~ 

"

TO

PWB " T6 "

TO PTC

THERMISTOR

19

k

j

i

h

g

f

e

d

c

b

a

z

+1.66

+1.00

+0.33

-0.33

-0.66

-1.00

-1.33

-1.66

-2.00

-2.33

Heating

SET VALUE

c 

d 

e 

f 

g 

h 

i 

j  

+1.33 

+1.00 

-0.33 

-0.66 

SET VALUE 

+0.66 

Cooling

+0.33 

Proportional control (P control)
When the temperature zone changes, this control
changes the frequency by one rank to move closer
to the set value.

Integral control (I control)
When the temperature zone has set time in the
same zone, this control changes the frequency by
one rank to move closer to the set value. (Excluding
the h zone.)

The initial frequency is determined as shown in the
tables below based on the difference between the
temperature adjustment setting at the beginning of
operation and the room temperature.
After operation begins, normal control is performed
and therefore the correspondences in the tables
below will not hold.

The temperature adjustment range is changed by
changing the operating mode with the operation
switch.

If the room temperature is in the z zone when
operation begins, proportional/integral control is not
performed, and the machine runs at frequency code
c full power until the h zone is reached. When the h
zone is reached, the frequency changes to the
frequency code determined by fuzzy calculation,
and after that proportional/integral control is
performed.

If the room temperature is in the c zone when
operation begins,proportional/integral control is not
performed, and the machine runs at frequency
code 9 power until  the h zone is reached. When the
h zone is reached,  the frequency changes to the
frequency code

determined by fuzzy calculation,

and after

thatproportional/integral control is

performed.

After operation begins, 2 minutes (running at the h
zone) of the room temperature is stored in memory,
and that becomes the set value.

The frequency code 0 is sent to the outdoor
machine, and only the fan of the indoor machine
runs, the compressor does not run.

e 

f 

f 

h 

i 

+1.33 

+1.00 

-1.00 

+0.33 

Dry

MEMORY SET VALUE

Cooling

Room 
temp. 
zone

Frequency 

Code   

c

9

d

8

e

7

f

5

g

3

h

2

i

1

j

OFF

Heating

Room 
temp. 
zone

Frequency 

Code   

k

OFF

(Hot keep fan)

j

1

i

1

h

2

g

3

f

4

e

5

d

6

e

7

f

5

g

3

h

2

i

1

Dry

Room 
temp. 
zone

Frequency 

Code   

e

4

f

3

g

2

h

1

i

OFF

c

b

a

z

8

A

B

C

20

This control uses the thermistor for the indoor heat
exchanger to control cold air blowing prevention, the
indoor fan, and overheating prevention.

If the temperature of the indoor heat exchanger
exceeds the overheating prevention line during
heating due to the operating frequency or the nature
of the operation, this control lowers the frequency
by 4 to 15 Hz. When the temperature goes below
the overheating prevention line sixty seconds later,
normal operation is restored.

If the temperature of the indoor heat exchanger
stays below approximately 0

°

C for four minutes

during cooling or dry, this control stops the
compressor. Over 2˚C the compressor will run
again.

When heating begins, this control stops the indoor
fan until the temperature of the indoor heat
exchanger reaches 26

°

C. It also stops the fan if the

temperature goes below 23

°

C during operation.

The indoor fan has 12 speeds, and changing is
done in four stages, "Auto", "High", "Med", and
"Low". The relations between the indoor fan speed,
air quantity setting, operating frequency, and indoor
heat exchanger are shown in the following charts.

Operating 
frequency

Over 50 Hz

Overheating prevention line (°C)

50 to 43 Hz 43 to 37 Hz Below 37 Hz

54

57

53

56

52

55

51

54

During normal 
operation

During full 
power operation

OFF

1

2

3

4

5

6

7

8

9

10

11

1

2

3

4

5

6

7

8

9

OFF

Fan speed

Frequency cord

Fan speed : High / Med / Low 

High

Med

Low

OFF

1

2

3

4

5

6

7

8

9

10

11

1

2

3

4

5

6

7

8

9

OFF

Fan speed

Frequency cord

Fan speed : Automatic

COOLING

OFF

1

2

3

4

5

6

7

8

9

10

11

1

2

3

4

5

6

7

8

9

OFF

Fan speed

Frequency cord

Fan speed : High / Med / Low 

12

A

B

C

A

B

C

Low 

D - H

Med 

D - H

High 
D - H

OFF

1

2

3

4

5

6

7

8

9

10

11

1

2

3

4

5

6

7

8

9

OFF

Fan speed

Frequency cord

Fan speed : Automatic

12

A

B

C

A

B

C

G, H

D

E

F

HEATING

53

50

47

44
38

32

26

H

G

F

E

D

C

B

A

(˚C)

Cold air blowing 
prevention line

Temperature of indoor heat exchanger

Differential
3˚C