Daewoo DSA-101L Service manual - Buzzer Driving(10)
Manual is about: Split System Air
Conditioner
of
62
38
DESCRIPTION
Micom 34 Terminal put out Buzzer Driving Pulse,
its output is driving Buzzer through Buffer.
Ocillatory Frequency of buzzer is selected by
internal Micom.
This unit is setting at 4KHz.
VCC
12V
KID 65004
MICOM
34
6
11
R4
1K
BZ1
Buzzer Driving(10)
DESCRIPTION
Selecting function is as following table 9-1.
ƒR
When power source is put at fist, Funtion selection input is recognized.
And when the unit is running the microcomputer ignore variation of funtion selection input.
JS5
5V
CA1
F4104Z
1K R17
1K R16
14
15
16
30
29
28
27
1K R15
1K R26
R29
5V
test
mild/high
JS3
50/60hz
JS4 heat/cool
1K R25
1K R24
1K R23
CA1
F4104Z
MICOM
COMP ERR
JS1
RA1
5A 103J
RA1
5A 103J
JS2
Function Selecting(9)
SHORT
OPEN
JS6
SKIP
DETECT
JS4
HEAT
COOL
JS3
50Hz
60Hz
JS1
JS2
070
SHORT
SHORT
091
OPEN
OPEN
121
SHORT
OPEN