Sharp AU-X108 Service Manual ▷ View online
AH/AU-X108E
AY/AE-X108E
AH/AU-X138E
AY/AE-X138E
13
OUTDOOR UNIT for AE-X108E / AE-X138E / AU-X108E / AU-X138E
CPU
Test mode circuit
LED drive circuit
Winter kit circuit (option)
Heat exchanger pipe
thermo circuit
thermo circuit
Compressor thermo circuit
CPU reset circuit
Serial I/O circuit
Power transistor module
drive circuit
drive circuit
4-way valve drive circuit
(except for AU-X138E,AU-X108E)
(except for AU-X138E,AU-X108E)
Outdoor fan relay drive
circuit
circuit
Power supply
circuit (built
into IPM)
circuit (built
into IPM)
CPU oscillator circuit
AC overcurrent detection
circuit
circuit
DC overcurrent detection
circuit
circuit
LED
Heat exchanger pipe
thermistor
thermistor
Compressor thermistor
Current transformer
Outdoor temperature
thermo circuit[except for the
AU-X138E and AU-X108E]
thermo circuit[except for the
AU-X138E and AU-X108E]
Outdoor temperature
thermistor[except for the
AU-X138E and AU-X108E]
thermistor[except for the
AU-X138E and AU-X108E]
Compressor
Power
transistor module
transistor module
4-way valve
Outdoor fan
Smoothing
circuit
circuit
Passive filter
circuit
circuit
Filter
circuit
circuit
Unit-unit
wiring (AC
power and
serial
signals)
wiring (AC
power and
serial
signals)
protection
20A : AU-X138E, AE-X138E
13A : AU-X108E, AE-X108E
13A : AU-X108E, AE-X108E
AU-X108E, AE-X108E
20A : AU-X138E, AE-X138E
10A :
10A :
protection
3 A
protection
Heat exchanger pipe
thermistor(option)
thermistor(option)
Outdoor temperature
thermistor(option)
[except for the AU-X138E
and AU-X108E]
thermistor(option)
[except for the AU-X138E
and AU-X108E]
AH/AU-X108E
AY/AE-X108E
AH/AU-X138E
AY/AE-X138E
14
MICROCOMPUTER CONTROL SYSTEM
Figure
L-1.
Electronic
Control
Circuit
Diagram
for
AH-X108E
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
JP5
JP4
JP3
JP2
JP1
5v
5v SW1
5v
5v
5v
5v
5v
5v
5v
5v
5v
5v
MODEL 5
MODEL 4
MODEL 3
MODEL 2
MODEL 1
RATING COOL
RATING HEAT
FAN L
FAN M
FAN H
AUX.
(TEST RUN)
CN1
CN2
CN3
CN301
CN201
CN101
RED
GRAY
GRAY
1
1
7
6
1
2
3
4
5
8
9
10
7
6
1
2
3
4
5
8
9
10
3
3
2
CN8
CN701
CN7
1
2
1
2
3
2
JP99
POWER ON
RED LED101
RED GREEN
YELLOW LED102
IC201
+
–
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
R55 180
JP11
R54 180
R53 180
R52 180
R51 180
SW2
H
L
5v
POWER
SELECT
R8
10k
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
8
IC2
12v
12v
12v
12v
12v
12v
12v
5
4
3
2
1
9
LOUVER MOTOR
RY1
R16
1.8k
2
SSR1
+
–
8
7
6
5
1
2
3
4
C9
50v
1000P
R1 470 1/2W
IC80
R81
1k
R80
6.8k
R4
33k
R5
33k
3
BZ
C6
10v
100
µ
ZD2
C5
25v
47
µ
+
–
+
–
+
–
C18
35v
100
µ
+
–
OUT
IN
7805
IC4
OUT
IN
7812
IC3
HEAT
SINK
GND
GND
C4
25v
0.1
µ
C13
25v
0.1
µ
C2
AC
250v
0.1
µ
C14
50v
1
µ
C3
25v
1000
µ
5v
5v
R7
20k
R6
3.3k
3
1
2
Q1
C7
50v
1000P
JP9
JP8
JP6
JP7
SIGNAL IN
SIGNAL OUT
WIRELESS
TEST
MODEL 6
PREHEAT
1
2
3
OSC
8MHz
5v
5v
1
3
IC5
C16
16v
0.01
µ
C15
16v
0.01
µ
D5
R22
1.2k
R21
3.3k
R18 2.7k
R20
33k
R19
4.7k
IC1
RED GREEN
RED GREEN
RED GREEN
RED GREEN
LED201
LED202
LED203
LED204
LED205
R205
470
R204
470
R203
470
R202
470
R201
470
TRANSFORMER
D1 D2
D3 D4
(CN9)
JP10
TR
C21
250VAC
0.01
µ
C1
430VAC
1.5
µ
NR1
NF1
FU1
2.5A 250v T
CNR1
13 11
S201D01
SSR1
1
3
5
1
5
6
3
4
2
FAN
MOTOR
D6
(D9)
(R90)
2W
12K
(R91)
2W
12K
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
250v
0.01
µ
HZ24-2
C12
16v
10
µ
+
–
R15
10.0kF
C11
16v
10
µ
+
R14
10.0kF
CN4
4
3
2
1
5v
TH2
TH1
PIPE TEMP.
15k (25
°
C
)
ROOM TEMP.
10k (25
°
C
)
IN
OUT
POWER
SUPPLY
SINGLE
PHASE
1
N
2
OUTDOOR
UNIT
TERMINAL
BOARD
A
S
D7
SERIAL SIGNAL
1
2
3
4
PC2
4
3
1
2
PC1
5v
FUNC-
TION
IC1 PIN
No.
16(P44)
19(P41)
36(P24)
35(P25)
34(P26)
33(P27)
29(P60)
17(P43)
8(P30)
7(P31)
5(P33)
4(P50)
3(P51)
2(P52)
JP7
SYMBOL
JP9
JP1
JP2
JP3
JP4
JP5
JP6
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: 33K
R35:
13K
R36:
NONE
R37: JP
R38: JP
R39:
NONE
PREHEAT
NONE/ON
WIRE-
LESS
NORMAL/
CHANGE
MODEL1
fmin UP
ON/
NORMAL
MODEL2
AH/AY
MODEL3
HOT K.
NORMAL/
ON
MODEL4
13/10
MODEL5
FAN
LATTICE
NONE/ON
MODEL6
RATED f
COOL
RATED f
HEAT
FAN L
SPEED
1~5
FAN M
SPEED
6~10
FAN H
SPEED
11~12
USE
NONE
NONE
NONE
NONE
NONE
NOTE:
1. : TEST POINT
RPM
RY1
EVAPORATOR
10v
33
µ
+
–
S M 8 3 1
3
2
5V
Q2
3
2
5V
Q3
AH/AU-X108E
AY/AE-X108E
AH/AU-X138E
AY/AE-X138E
15
Figure
L-2.
Electronic
Control
Circuit
Diagram
for
AU-X108E
+
–
RE
WH
YE
T12
T5
T7
T8
T14
T13
L1
L2
REACTOR
REACTOR
RE
GR
C7A
C6A
D4
D5
C8
C9
T9
T10
C6B
C7B
80
µ
F
400V
235
µ
F 250V
470
µ
F
400V
470
µ
F
400V
10A
250V
235
µ
F 250V
80
µ
F
400V
GR
WH
BL
BK
DB1
DB2
DIODE BRIDGE
DIODE BRIDGE
WPE2
+
–
+
–
+
+
+
–
+
–
–
–
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
1
P31
IC1
M B 8 9 8 5 5
2
P30
3
P47
4
Z
5
Y
6
X
7
W
8
V
9
U
10
P40
11
AN0
12
AN1
13
AN2
14
AN3
15
AN4
16
AN5
17
AN6
18
AN7
19
AVCC
20
AVR
21
AVSS
22
DTTI
23
P63
24
P62
25
P61
26
P60
27
RESET
28
MOD2
29
MOD1
30
X0
31
X1
32
VSS
64
VCC
63
P32
62
P33
61
P34
60
P35
59
P36
58
P37
57
VSS
56
P00
55
P01
54
P02
53
P03
52
P04
51
P05
50
P06
49
P07
48
P10
47
P11
46
P12
45
P13
44
P14
43
P15
42
P16
41
P17
40
P20
39
P21
38
P22
37
P23
36
P24
35
P25
34
P26
33
P27
5V
5V
LED1
R30
2.2k
4.7K
R12
R13
2.7K
PC1:PC817X7
PC2:PC853H
1000P
C14
R10
3.3K
C13
0.1
µ
25V
C12
4700P
250V
IC3
C23
OSC1
IC1
1
µ
50v
5V
+
–
PST993D
2W
680
2W
680
2W
680
2W
680
2W
680
13V
Q5
KRC106M
Q4
DTD113ZS
D7
RY2
D6
MRY1
50V
R11
56K
PC2
R9
R8
R7
R6
R5
4 3
4
3
1 2
1
2
5V
5V
R31
10K
10K
R32
PC1
D1
B
0.1
µ
250v
C45
100
µ
10v
C46
A
5V
5V
5V
13V
R52
10K
R51
10K
JP1
R50
13K
F
R20
IC2
7805
C17
+
–
100
µ
10
µ
1W
47
+ –
+
–
C16
0.1
µ
25V
R33
R21
1.0K
1/2W
680
C44
100
µ
/25V
10
9
8
7
6
5
4
4
2
1
1
3
5
3
2
1
1
2
3
4
R14
330
R15
330
R16
330
R17
330
R18
330
R19
330
LW
HW
LV
HV
LU
HU
GND
Vin1
Vcc1
ARM
C15
1000P
CN1
(1PM)25V
5V
CN10
WINTER KIT
R40
10K
C22
10
µ
16V
10
µ
16V
+
–
C21
R27
6.8KF
6.8KF
R26
3
TH1
TH2
R22
330K
CN8
(THERMISTOR)
TH1 : COMPRESSOR
TH2 : HEAT-EXCHANGER
CNR2
RY2
NR2
1
N
2
WPE3 3A 250V
GREEN/YELLOW
GREEN/YELLOW
C5
5V
2
µ
430V
CN3
FAN MOTOR
T11
T4
NR1
SA1
13A
WPE1
T1
T2
T3
C11
0.47
µ
250V
L3
C3,C4:4700P
AC250V
1
3
2
4
C4
C3
C2
L4
1
3
2
4
R2
R59
2.7KF
D9
YELLOW
FC1
IPM
COMPRESSOR
U
W
V
BLUE
C43
220
µ
16V
R61
10KF
R60
1.00KF
R1
C1
CT1
TERMINAL BOARD
B
A
BROWN
BLUE
RED
250V
1.0
µ
250V.
R1, R2:510K0.22
µ
1/4W 250V
+
–
AH/AU-X108E
AY/AE-X108E
AH/AU-X138E
AY/AE-X138E
16
Figure
L-3.
Electronic
Control
Circuit
Diagram
for
AH-X138E
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
JP5
JP4
JP3
JP2
JP1
5v
5v SW1
5v
5v
5v
5v
5v
5v
5v
5v
5v
5v
MODEL 5
MODEL 4
MODEL 3
MODEL 2
MODEL 1
RATING COOL
RATING HEAT
FAN L
FAN M
FAN H
AUX.
(TEST RUN)
CN1
CN2
CN3
CN301
CN201
CN101
RED
GRAY
GRAY
1
1
7
6
1
2
3
4
5
8
9
10
7
6
1
2
3
4
5
8
9
10
3
3
2
CN8
CN701
CN7
1
2
1
2
3
2
JP99
POWER ON
RED LED101
RED GREEN
YELLOW LED102
IC201
+
–
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
R55 180
JP11
R54 180
R53 180
R52 180
R51 180
SW2
H
L
5v
POWER
SELECT
R8
10k
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
8
IC2
12v
12v
12v
12v
12v
12v
12v
5
4
3
2
1
9
LOUVER MOTOR
RY1
R16
1.8k
2
SSR1
+
–
8
7
6
5
1
2
3
4
C9
50v
1000P
R1 470 1/2W
IC80
R81
1k
R80
6.8k
R4
33k
R5
33k
3
BZ
C6
10v
100
µ
ZD2
C5
25v
47
µ
+
–
+
–
+
–
C18
35v
100
µ
+
–
OUT
IN
7805
IC4
OUT
IN
7812
IC3
HEAT
SINK
GND
GND
C4
25v
0.1
µ
C13
25v
0.1
µ
C2
AC
250v
0.1
µ
C14
50v
1
µ
C3
25v
1000
µ
5v
5v
R7
20k
R6
3.3k
3
1
2
Q1
C7
50v
1000P
JP9
JP8
JP6
JP7
SIGNAL IN
SIGNAL OUT
WIRELESS
TEST
MODEL 6
PREHEAT
1
2
3
OSC
8MHz
5v
5v
1
3
IC5
C16
16v
0.01
µ
C15
16v
0.01
µ
D5
R22
1.2k
R21
3.3k
R18 2.7k
R20
33k
R19
4.7k
IC1
RED GREEN
RED GREEN
RED GREEN
RED GREEN
LED201
LED202
LED203
LED204
LED205
TRANSFORMER
D1 D2
D3 D4
(CN9)
JP10
TR
C21
250VAC
0.01
µ
C1
430VAC
1.5
µ
NR1
NF1
FU1
2.5A 250v T
CNR1
13 11
S201D01
SSR1
1
3
5
1
5
6
3
4
2
FAN
MOTOR
D6
(D9)
(R90)
2W
12K
(R91)
2W
12K
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
250v
0.01
µ
HZ24-2
C12
16v
10
µ
+
–
R15
10.0kF
C11
16v
10
µ
+
R14
10.0kF
CN4
4
3
2
1
5v
TH2
TH1
PIPE TEMP.
15k (25
°
C
)
ROOM TEMP.
10k (25
°
C
)
IN
OUT
POWER
SUPPLY
SINGLE
PHASE
1
N
2
OUTDOOR
UNIT
TERMINAL
BOARD
A
S
D7
SERIAL SIGNAL
1
2
3
4
PC2
4
3
1
2
PC1
5v
FUNC-
TION
IC1 PIN
No.
16(P44)
19(P41)
36(P24)
35(P25)
34(P26)
33(P27)
29(P60)
17(P43)
8(P30)
7(P31)
5(P33)
4(P50)
3(P51)
2(P52)
JP7
SYMBOL
JP9
JP1
JP2
JP3
JP4
JP5
JP6
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:
NONE
R37: JP
R38: JP
R39:
NONE
PREHEAT
NONE/ON
WIRE-
LESS
NORMAL/
CHANGE
MODEL1
fmin UP
ON/
NORMAL
MODEL2
AH/AY
MODEL3
HOT K.
NORMAL/
ON
MODEL4
13/10
MODEL5
FAN
LATTICE
NONE/ON
MODEL6
RATED f
COOL
RATED f
HEAT
FAN L
SPEED
1~5
FAN M
SPEED
6~10
FAN H
SPEED
11~12
USE
USE
NONE
NONE
NONE
NONE
NOTE:
1. : TEST POINT
RPM
RY1
EVAPORATOR
10v
33
µ
+
–
S M 8 3 1
R205
470
R204
470
R203
470
R202
470
R201
470
3
2
5V
Q2
3
2
5V
Q3
Click on the first or last page to see other AU-X108 service manuals if exist.