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SCHEMATIC DIAGRAM-5
D
MAIN CIRCUIT
H
G
F
R650
100
E
D
R638
CN201
47
MCLK
1
R639
47
SCLK
2
C
R640
47
LRCK
3
D.GND
4
R641
47
AU0
5
R642
47
AU1
6
R643
47
AU2
7
D.GND
8
R644
10
9
DEC
DAC.GND
10
R646
100
F
DRSPD
11
To
POWER SUPPLY
TW
12
CIRCUIT(CN905)
R648
10
VOLUME
13
on SCHEMATIC
SD
14
B
DIAGRAM-11/2,3-A
AMPRESET
15
R651
AC.GND
16
100
MUTE-HP
17
R652
100
MUTE F
18
R653
100
MUT C.S
19
R654
100
MUT SW
20
12V.GND
21
+B(12V)
22
12V.GND
23
+B(12V)
24
HP SW
25
A
1
2
:POSITIVE VOLTAGE LINE
:FM/ AM SIGNAL LINE
12.1V
3.3V
A
B
C
3.3V
3.3V
3.3V
1.6V
8
7
6
5
Vcc
IC110
C0JBAZ001127
DUAL BUS BUFFER
GND
1
2
3
4
3.3V
1.6V
1.6V
D
E
IC608
C0CBAYD00002
REGULATOR
INPUT
OUTPUT
VADJ
3
2
1
12.1V
3.3V
2.1V
R673
3.3V
3.3V
1.6V
1.6V
180
8
7
6
5
Vcc
GND
1
2
3
4
3.3V
1.6V
1.6V
4.7V
3.3V
5
4
SENSE
V
DD
IC609
C0EBE0000200
RESET
GND
GND
RESET
1
2
3
3.3V
Q617
UN5111TX
MUTING CONT.
3.3V
0.7V
3.3V
R695
100
3
4
5
Z
C103
0.047
C104
4700P
F
D101
V
B0ADBH000001
W
d
IC111
C0JBAZ001127
DUAL BUS BUFFER
X
a
Y
b
d
S
B
C
E
F
D102
H
B0ADBH000001
I
K
L
U
Z
a
b
S
N
O
G
J
G
H
K
L
M
I
N
O
P
Q
R
T
6
7
8
12.1V
3.3V
P
G
R103
22
48
47
46
45
44
43
42
41
40
39
38
37
R104
220
1.8V
FM
1
MCLK IN
DV
DD
3 L
36
3.2V
2.4V
AV
2
2
DD
PWM AP L
35
P-P
2V
PLL FLT OUT
3
PWM AM L
34
0.2 s.
1V/DIV.
0V
PLL FLT RET
4
PWM BM L
33
IC101
0V
AVss2
5
PWM BP L
32
C0ZBZ0000654
NC
DV
2
6
DD
31
DIGITAL AUDIO
3.3V
/ RESET
DVss2
7
AMPLIFIER
30
3.3V
FM
8
/ PDN
PWM AP R
29
3.2V
3.3V
9
VALID R
PWM AM R
28
FM
10
M S
0V
PWM BM R
27
4V
0.2 s.
1V/DIV.
11
NC
PWM BP R
26
3.3V
12
DV
DD
1
0V
DV
3 R
25
DD
T
15.2ms.
13
14
15
16
17
18
19
20
21
22
23
24
IC105
C0BBCA000040
VOLTAGE COMPARATOR
3.3V
3.3V
1
1OUT
OUT3
14
3.3V
3.3V
2
2OUT
OUT4
13
12.1V
3
Vcc
GND
12
R127
1K
0V
5.8V
2IN-
4IN+
4
11
0V
5.8V
5
2IN+
4IN-
10
0V
5.8V
6
1IN-
3IN+
9
0V
5.8V
7
1IN+
3IN-
8
9
10
R119
10
3.3V
A
1.6V
B
1.6V
C
1.6V
D
1.6V
E
3.3V
R118
10
C107
0.1
1.6V
F
1.6V
G
1.6V
H
1.6V
I
3.3V
R117
10
J
K
L
R129
3.9K
C113
0.01
R137
100K
A
R135
100K
J
R132
100K
M
R130
100K
D
SA-XR10(E,EB,EG,GCS,GD,GN) MAIN CIRCUIT DIAGRAM
11
12
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