– 45 –
SEMICONDUCTOR PIN FUNCTION
SEMICONDUCTOR
S 1731 Indoor, S 1735 Indoor
IC1
Pin No.
Signal Name
Function
In/Out
Active
Voltage
1
A/D Input
Sensor(Room Temp.)
In
-
See 53 Page
2
A/D Input
Sensor(Heat Exchanger Temp.)
In
-
See 55 Page
3
NC
NC
In
-
0 V
4
Munual Sw. Input
Munual Sw. Input
In
L
5Vor0V
5
Motor(fan)
H= Motor(fan) On
Out
H
See Fig 1
6
Buzzer
4KHz Pulse= On
Out
H
5V 4KHz Pulse(Duty50%)
7
Pulse Input (Fan Motor Pulse)
Pulse Input (Fan Motor Pulse)
In
-
See Fig 3
8
NC
NC
In
-
-
9
NC
NC
In
-
-
10
NC
NC
Out
-
-
11
NC
NC
In
-
-
12
NC
NC
In
-
0 V
13
NC
NC
In
-
0 V
14
NC
NC
In
-
5 V
15
NC
NC
In
-
0 V
16
MIN.Hz UP
H= MIN.Hz UP L= Normal
In
H
0 V
17
Remote Controller Input
Remote Controller Signal
In
H
5Vor0V
18
NC
NC
In
-
0 V
19
Reset
L= Reset
In
L
5Vor0V
20
NC
NC
In
-
5 V
21
Zero Cross
Zero Cross
In
-
See Fig. 2
22
Resonator In
Clock In
In
-
10MHz
23
Resonator Out
Clock Out
Out
-
10MHz
24
VSS
0V(GND)
-
-
0V
25
NC
NC
In
-
5 V
26
NC
NC
In
-
5 V
27
Ionizer Lamp
L= Ionizer Lamp On
Out
L
5Vor0V
28
Power Lamp
L= Power Lamp On
Out
L
5Vor0V
29
Timer Mode Lamp
L= Timer Mode Lamp On
Out
L
5Vor0V
30
Operating Mode Lamp
L= Operating Mode Lamp On
Out
L
5Vor0V
31
NC
NC
In
-
5 V
32
Power Relay
L= Power Relay On
Out
H
5Vor0V
33
Motor(Louver D)
Pulse= On L= Off
Out
H
5Vor0V
34
Motor(Louver C)
Pulse= On L= Off
Out
H
5Vor0V
35
Motor(Louver B)
Pulse= On L= Off
Out
H
5Vor0V
36
Motor(Louver A)
Pulse= On L= Off
Out
H
5Vor0V
37
NC
NC
Out
-
-
38
NC
NC
Out
-
-
39
NC
NC
Out
-
-
40
NC
NC
Out
-
-
41
NC
NC
Out
-
-
42
NC
NC
Out
-
-
43
NC
NC
Out
-
-
44
Ionizer
H= Ionizer On
Out
H
5Vor0V
45
A/D Inpuut
Change the Function
In
-
3.4V
46
EXTERNAL CONTROL
H= On L= Off(Normal)
In
-
0.2V
47
AUTO RECOVERY OFF
H= Off L= On(Normal)
In
H
0 V
48
NC
NC
In
-
5 V
49
NC
NC
In
-
0 V
50
EEPROM(SO)
EEPROM Serial Data Output
Out
-
5Vor0V
51
Communication Output
Pulse= Communication Output
Out
H
5Vor0V
52
Communication Input
Communication Input
In
-
5Vor0V
53
NC
NC
In
-
-
54
EEPROM(SI)
EEPROM Serial Data Input
In
-
5Vor0V
55
EEPROM(SK)
EEPROM Serial Data Clock
Out
-
5Vor0V
56
EEPROM(CS)
EEPROM Chip Select
Out
-
5Vor0V
57
VCC
5V POWER
-
-
5V
58
Vref
A/D Reference Voltage
-
-
5V
59
AVSS
0V(GND)
-
-
0V
60
NC
NC
-
-
0V
61
REMOTE CONTROLLER A/B
H= Btype L= Atype(Normal)
In
-
0.2V
62
LOUVER CONTROL
H= Off L= On(Normal)
In
-
0.2V
63
NC
NC
-
-
5V
64
NC
NC
-
-
5V
IC3
1
〜
7
15
Input
5V(or Pulse)= On
¸
0V= Off
In
L
5Vor0V
8
GND
0V(GND)
-
0V
9
〜
Output
0V(or Pulse)= On
¸
12V= Off
Out
H
12Vor0V
16
VCC
12V
-
-
-
12V
Summary of Contents for S1731
Page 24: ... 23 ELECTRIC CIRCUIT DIAGRAM S1731Outdoor S1735Outdoor ...
Page 31: ... 30 PCB AC 377 AC 379 SCHEMATIC DIAGRAM AND PCB S S1731Outdoor S1735Outdoor Bottom View ...
Page 32: ... 31 FILTER PCB AC 378 SCHEMATIC DIAGRAM AND PCB S S1731Outdoor S1735Outdoor Bottom View ...
Page 34: ... 33 SCHEMATIC DIAGRAM AC 377 AC 379 SCHEMATIC DIAGRAM AND PCB S S1731Outdoor S1735Outdoor ...
Page 35: ... 34 FILTER PCB AC 378 SCHEMATIC DIAGRAM AND PCB S S1731Outdoor S1735Outdoor ...
