Figure L-5. Electronic Control Circuit Diagram for AY-X108E
1
2
3
4
5
C101
C102
0.1µ 25v
C80
25v
0.1µ
C8
16v
0.01µ
C10
25v0.1µ
C17
10v 100µ
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
CN3CN301
CN201
CN101
RED
GRAY
GRAY
11
7
6
1
2
3
4
5
8
9
10
7
6
1
2
3
4
5
8
9
10
33
2
CN8 CN701
CN7
1
2
1
2
3
2
JP99 
POWER ON 
RED      LED101
RED  GREEN
YELLOW       LED102
IC201
+
–
R9
10k
470
R205
470
R204
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
470
R203
470
R202
470
R201 
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
5v
1
2
3
Q3
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
100µ
ZD2
C5
25v
47µ
+
–
+
–
+
–
C18
35v
100µ
+
–
OUT IN
7805
IC4
OUT IN
7812
IC3
HEAT SINK
GNDGND
C4
25v
0.1µ
C13
25v
0.1µ
C2
  AC
250v
0.1µ
C14
50v
1µ
C3
25v
1000µ
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
0.01µ
C15
16v
0.01µ
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
0.01µ
C1
430VAC
1.5µ
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
0.047µ
C20
250v
0.01µ
HZ24-2
C12
16v
10µ
+
–
R15
10.0kF
C11
16v
10µ
+
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
23
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)
JP7SYMBOL JP9 JP1 JP2 JP3 JP4 JP5 JP6 R30, R31 R32, R33 R45, R46 R34, R35 R36, R37 R38, R39
NONESET USE R30: 15K
R31: 13K
R32: 15K
R33: 13K
R45: 2.4K
R46: 
10K   
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
USENONE NONE NONE NONE NONE
NOTE:
1.       : TEST  POINT
RPM
RY1
EVAPORATOR
10v
33µ
+
–
S M 8 3 1
5v
1
2
3
Q2