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

Model
AY-X127E
Pages
45
Size
1.99 MB
Type
PDF
Document
Service Manual
Brand
Device
Air Conditioner
File
ay-x127e.pdf
Date
PREV: Sharp AY-X108 (serv.man3) Service Manual / Technical Bulletin

Sharp AY-X127E Service Manual ▷ View online

AH-X127E
AU-X127E
AY-X127E
AE-X127E
9
BLOCK DIAGRAMS
INDOOR UNIT for AH-X127E and AY-X127E
DC power supply circuit
Fan motor phase control circuit
Rotation pulse input circuit
AC clock circuit
Louver motor drive circuit
Remote controller signal
reception circuit
Buzzer drive circuit
CPU reset circuit
CPU oscillator circuit
Room temp. detect circuit
Heat exchanger pipe thermo circuit
Compensation circuit/
select circuit
Compensation circuit
Switchover circuit
Serial I/O circuit
Compressor relay drive circuit
LED drive circuit
Auto restart circuit 
Test run circuit
Power on circuit
Flow direction control
(louver motor)
Wireless remote control
operation
Audible operation confirmation
Room fan motor
Fan motor pulse detect
Room temp. thermistor
           Heat exchanger pipe thermistor
Blower temperature,
fan speed, model select
Outdoor ratings
Wireless, preheat
Indoor/outdoor control signal I/O
       Outdoor unit power supply
       on/off control
LED display
Test run (forced operation)
Self diagnostics,
fault diagnosis
AC power
Unit-unit
wiring (AC
power and
serial
signals)
CPU
FUSE
Auxiliary mode
Auxiliary mode button ON/OFF
2.5 A
AH-X127E
AU-X127E
AY-X127E
AE-X127E
10
OUTDOOR UNIT for AU-X127E and AE-X127E
CPU
Test mode circuit
LED drive circuit
Winter kit circuit (option)
Heat exchanger pipe 
thermo circuit
Compressor thermo circuit
CPU reset circuit
Serial I/O circuit
Power transistor module 
drive circuit
4-way valve relay drive
circuit
Outdoor fan relay drive
circuit
Power supply
circuit (built
into IPM)
CPU oscillator circuit
AC overcurrent detection
circuit
DC overcurrent detection
circuit
LED
Heat exchanger pipe
thermistor
Compressor thermistor
Current transformer
Outdoor temperature
thermo circuit
Outdoor temperature
thermistor
Compressor
Power 
transistor module
4-way valve (except for
the AU-X127E)
Outdoor fan
Smoothing
circuit
Passive filter
circuit
Filter
circuit
Unit-unit
wiring (AC
power and
serial
signals)
20 A
protection
20 A protection
3 A
protection
Heat exchanger pipe
thermistor(option)
Outdoor temperature
thermistor(option)
AH-X127E
AU-X127E
AY-X127E
AE-X127E
11
MICROCOMPUTER CONTROL SYSTEM
Figure 
L-1. 
Electronic 
Control 
Circuit 
Diagram 
for 
AH-X127E
1
2
3
4
5
C101
C102
0.1
µ
 25v
C80
25v
0.1
µ
C8
16v
0.01
µ
C10
25v0.1
µ
C17
10v
100
µ
NC
JP8
 JP4
JP3
JP2
JP1
5v
5v   SW1
5v
5v
5v
5v
5v
5v
5v
5v
5v
MODEL 8
MODEL 4
MODEL 3
MODEL 2
MODEL 1
RATING 1
RATING 2
CHAMB.T.
   FAN  L
   FAN  M
   FAN  H
POWER ON
AUX.
(TEST RUN)
CN1
CN2
CN3
CN301
CN201
CN101
RED
GRAY
GRAY
GRAY
GRAY
WHITE
1
1
1
1
3
3
3
3
2
CN8
CN701
CN7
1
2
3
2
2
2
JP
99 
60
61
(RED)LED101
(YELLOW)LED102
+
–
R9
10k
R12
10k
R29
680
R31
R33
R46
R35
R37
R39
R30
R32
R45
R34
R36
R38
PHOTO  DETECTOR  UNIT
R10     680
R11    330
33   P27
34   P26
35   P25
36   P24
37   P23
38   P22
39   P21
40   P20
41    K1
42   P17
43   P16
44   P15
45   P14
46   P13
47   P12
48   P11
49   P10
50   P07
51   P06
52   P05
53   P04
54   P03
55   P02
56   P01
57   P00
58   GND
59   VDD
60   VR
61   P57
62   P56
63   P55
64   P54
P41
P42
P43
P44
P45
P46
 F
RESET
CK1
CK2
AGND
P30
P31
P32
P33
P50
P51
P52
P53
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
TEST
OSC
out
OSC
in
P60
P61
P62
GND
P63
P64
P65
P66
KH
P40
32
31
30
29
28
27
26
25
24
23
22
21
20
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
8
IC2
12v
12v
12v
12v
12v
12v
12v
5
4
3
2
1
9
8
31
32
33
34
35
RED
ORANGE
YELLOW
PEACH
BLUE
LOUVER  MOTOR 
RY1
R16
1.8k
2
SSR1
30
+
–
39
40
17
8
7
6
5
1
2
3
4
C9
50v
1000P
R1
470
1/2W
IC80
R80
6.8k
R81
  1k
R4
33k
R3
2W
270
R5
33k
3
BZ
C6
10v
100
µ
ZD1
ZD2
5C-1
C5
25v
47
µ
+
–
+
–
+
–
C18
35v
100
µ
+
–
41
43
OUT
IN
7812
IC3
GND
C4
25v
0.1
µ
C2
  AC
250v
0.1
µ
C14
25v
0.1
µ
C3
25v
1000
µ
44
5v
5v
R7
20k
R6
3.3k
3
1
2
Q1
C7
50v
1000P
45
14
15
9
7
5
4
3
2
1
13
12
11
JP5
JP6
JP7
JP9
JP10
SIGNAL  IN
SIGNAL  OUT
MODEL 5
MODEL 6
MODEL 7
WIRELESS
PREHEAT
1
2
3
OSC
8MHz
6
5v
5v
1
2
3
Q2
C16
16v
0.01
µ
C15
16v
0.01
µ
16
D5
R22
1.2k
R21
3.3k
R18     2.7k
R20
33k
R19
4.7k
IC1
TRANSFORMER
46
D1     D2
D3     D4
47
TR
C21
250VAC
0.01
µ
C1
430VAC
1.5
µ
NR1
55
50
48
49
67
66
68
56
54
NF1
FU1
2.5A  250v T
CNR1
13      11
S201D01
SSR1
YELLOW
RED
BLACK
BLUE
BROWN
GRAY
1
3
5
1
5
6
3
4
2
FAN
MOTOR
57
51
38
37
10
D6
R26
2W
11k
R23
100k
R24
22k
R25
4.7k
R44
2W
680 X 5
R43
R42
R41
R40
R27
2W
11k
C19
50v
0.047
µ
C20
50v
0.01
µ
24-2
C12
16v
10
µ
+
–
R15
10.0kF
C11
16v
10
µ
+
R14
10.0kF
R13
10k
TEST
36
62
63
CN4
2
1
5v
TH2
TH1
PIPE  TEMP.
15k  (25
°
C
)
ROOM  TEMP.
10k  (25
°
C
)
IN
OUT
BROWN
BLUE
BLUE
RED
BLACK 
L
N
POWER
SUPPLY
TERMINAL
BOARD  3P
1
N
2
OUTDOOR
UNIT
TERMINAL
BOARD  4P
GREEN / YELLOW
A
S
52
D7
SERIAL  SIGNAL
1
2
3
4
PC2
4
3
1
2
PC1
5v
S M 8 3 1 3 
FUNC-
TION
IC1 PIN
No.
16(P44)
17(P43)
36(P24)
35(P25)
34(P26)
33(P27)
20(P40)
19(P41)
18(P42)
29(P60)
8(P30)
7(P31)
5(P33)
4(P50)
3(P51)
2(P52)
JP10
SYMBOL
JP9
JP1
JP2
JP3
JP4
JP5
JP6
JP7
JP8
R30, R31
R32, R33
R45, R46
R34, R35
R36, R37
R38, R39
NONE
SET
USE
R30: 15K
R31: 13K
R32: JP
R33: 
NONE
R45: JP
R46: 
NONE
R34: JP
R35: 
NONE
R36: JP
R37: 
NONE
R38: JP
R39: 
NONE
PREHEAT
NONE/ON
WIRE-
LESS
NORMAL/
CHANGE
MODEL1
fmin UP
ON/
NORMAL
MODEL2
PANEL/
GRILL
MODEL3
AH/AY
MODEL4
HOT K.
NORMAL/
ON
MODEL5
RPM: 1/3
MODEL6
OUT T.
TH.
NONE/ON
MODEL7
ABILITY
1
MODEL8
ABILITY
2
RATED f
COOL
RATED f
HEAT
CHAMBER
TEMP.
CONTROL
FAN L
SPEED
1~5
FAN M
SPEED
6~10
FAN H
SPEED
11~12
USE
NONE
NONE
USE
NONE
NONE
USE
NONE
NOTE:
1.       : TEST  POINT
2.  Not  specified  R  is  1/5W.
RPM
RY1
EVAPORATOR
10v
33
µ
69
20
21
22
27
26
23
24
AH-X127E
AU-X127E
AY-X127E
AE-X127E
12
Figure 
L-2. 
Electronic 
Control 
Circuit 
Diagram 
for 
AU-X127E
+
1
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01
5
1
N
2
4
3
2
1
5
3
1
1
2
1
2
(Terminal Board)
TB
RE
BL
BR
G/Y
T2
T1
T4
CN3
T11
T3
RY1
CNR1
R15
R14
R13
R12
G/Y
(Control Box)
250v~
0.1
µ
250v~
0.1
µ
250v~
4700p
250v~
4700p
250v
0.1
µ
3.3k
250v~
4700p
250v~
1
µ
L3
CT1
L4
R1
3
4
3
4
1
2
1
2
C11
C2
C3 
C4
SA1
NR1
C24
C12
NR2
430v 2.0
µ
(Fan Motor 
Capactor)
510k
510k
R2
C1
WH
WH
L1
20A
250v
FM
(Fan Motor)
3A 250v
WPE3
D1
2W
680
(Control Circuit Board Ass'y)
2W
680
2W
680
2W
680
R11
56k
JP16
R5
4.7k
R7
IC1
MB89855
(RH-IXA390JBE0)
C14
50v
1000p
C13
R4
2W
680
3
4
2
2
3
1
1
4
5v
5v
R16
10k
R17
10k
TEST 2
TEST 1
D4
PC817X7
PC1
PC2
PC853H
LED1
R6
2.7k
C16
5v
5v
2.2k
R3
NC
NC
NC
NC NC NC NC NC NC NC NC NC
NC NC
NC
NC NC NC
0.1
µ
25v
R38
(10k)
5v
5v
IC3
2
3
1
PST993D
5v
OSC1
1
µ
50v
C23
R10
6.49kF
C15
10v
220
µ
5v
D3
D2
1.00kF
R9
+
JP1
1.80kF
R8
BL
BL
BCN12
DTD113ZS
Q3
JP4
JP3
KRC106M
Q1
Q2
RY2
D5
RY1
D6
13v
T5
T6
BK
DB1
OR
BCN13
BL
PTC1
GR
GR
MRY1
BL
(PTC Thermistor)
(Reactor)
C10
C6
RE
1
2
3
4
400v
150
µ
400v
150
µ
L2
(Reactor)
RE
RE
BK
C5 200v 50
µ
F
WH
+
+
+
+
+
C8
CMP
YL
BL
DB2
GR
GR
BL
BR
GR
WH
C7
YL
63v 4700
µ
C9
GR
400v
2000
µ
400v
2000
µ
1/2W
270k
1/2W
270k
R40
C29
0.33
µ
630v
R39
T9
T10
T8
WPE2
20A
250v
T7
FC1
YL
BL
PM1
(IPM)
+
U
RE
WH
BK
V
W
(Compressor)
+
50v
1000p
+
TH2
(Thermistor for Condenser)
TH1
(Thermistor for Compressor)
OR
WH
WH
WH
WH
WH
WH
WH
WH
WH
WH
RE
5v
BCN11
R33
U
330
R32
X
330
R31
V
330
R30
Y
330
R29
W
330
R28
Z
330
5v
5v
13v
13v
ARM
CN8
JP2
R35
C18
1k
C21
C22
R20
R21
6.80kF
6.80kF
16v
10
µ
16v
10
µ
R37
R36
330k
(for WINTER-KIT)
CN10
R34
10k
5v
R27
R26
R25
R23
R24
20k
13k
R22
(for WINTER-KIT)
10
9
8
7
6
5
4
3
2
1
10
9
8
7
6
5
4
3
2
1
4
3
2
4
3
2
1
4
3
2
1
1
2
3
4
10
9
8
7
6
5
FREQ
NOTE:
   BK
   BL
   BR
   GN
   GR
   G/Y
   OR
   RE 
   WH 
   
YL  
(Black)
(Blue)
(Brown)
(Green)
(Gray)
(Green/Yellow)
(Orange)
(Red)
(White)
(Yellow)
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