Read Sharp AE-M18 (serv.man2) Service Manual online
11
AY-M09AE
AE-M18AE
AE-M18AE
Pin Terminal Input
No. Name
Output
Function
33 P56
OUT
Serial signal Output
34 P57
OUT
Serial signal Input
35 P60
IN
Dry ON select
36 P61
OUT
LED(Busy)
37 P62
OUT
LED(Timer)
38 P63
OUT
LED(Operation)
39 P64
OUT
–
40 P65
OUT
–
41 P66
OUT
–
42 P67
OUT
–
43 RESET IN
Microcomputer reset input
44 INTP0
IN
R.P.M signal input
45 INTP1
IN
AC clock input
46 INTP2
IN
Remote control signal
47 P03
OUT
–
48 VDD
–
Power supply(5V)
49 X2
–
Internal oscillation of the
microcomputer
50 X1
–
Internal oscillation of the
microcomputer
51 IC
–
GND
52 XT2
–
–
53 P04
IN
Test mode
54 AVSS
–
GND
55 ANI0
IN
Room temp. thermistor signal
56 ANI1
IN
Pipe temp. thermistor signal
57 ANI2
IN
–
58 ANI3
IN
Model B select
59 ANI4
IN
Model A select
60 ANI5
IN
FAN L select
61 ANI6
IN
FAN M select
62 ANI7
IN
FAN H select
63 AVSS
–
5V
64 AVREF –
5V
Microcomputer (IC1) for INDOOR UNIT
The microcomputer is a CMOS, one chip, 8-bit microcomputer.
Microcomputer port allocation is as follows.
The microcomputer is a CMOS, one chip, 8-bit microcomputer.
Microcomputer port allocation is as follows.
Pin Terminal Input
No. Name
Output
Function
1
P20
IN
5V
2
P21
OUT
–
3
P22
OUT
E
2
PROM(IC6) clock Output
4
P23
IN/OUT Date transmition signal
5
P24
OUT
–
6
P25
OUT
–
7
P26
OUT
–
8
P27
IN
Preheat select
9
P30
IN
Wireless select
10 P31
IN
RPM select
11 P32
IN
–
12 P33
IN
–
13 P34
IN
Sweat select
14 P35
IN
–
15 BUZ
OUT
Buzzer signal
16 P37
OUT
–
17 VSS
–
Power supply(0V)
18 P40
IN
Power on start
19 P41
IN
Auto restart
20 P42
IN
–
21 P43
IN
–
22 P44
IN
Key in signal(AUX.)
23 P45
IN
Key in signal(TEST RUN)
24 P46
IN
GND
25 P47
IN
GND
26 P50
OUT
Louver motor control
27 P51
OUT
Louver motor control
28 P52
OUT
Louver motor control
29 P53
OUT
Louver motor control
30 P54
OUT
Indoor fan motor control
31 P55
OUT
–
32 VSS
–
Power supply(0V)
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