Advertisement
Schematic diagram-1
B
SUB CIRCUIT
H
IC102
G
C0DBAAE00040
D.D.CONVERT
F
IC103
C0DBAGC00022
D.D.CONVERT
E
TUN_ANT
D
C140
C121
100P
0.022
L105
C
Q104
UNR921MJOL
Normal/City Switch
B
1.07V
R130
0V
680
0V
A
1
:POSITIVE VOLTAGE LINE
MA2Z74800L
C102
0.33
D103
3.0
2.99
2.98
16
15
14
1
2
3
1.24
3.0
1.24
0.46
1.45
1.46
10
9
8
7
6
LBO
LBI
ADEN
SW
VBAT
Vout
EN
COMP FB
GND
1
2
3
4
5
1.7
2.49
0.36
0.49
0
R111 1.2M
1.88
1.4
1.88
24
23
22
R124
18K
0.54
25
LGAIN
0
26
AGND
2.59
27
VCCA
1.05
28
C1BB00000836
RFI1
C125
27P
0
29
RFGND
C126
47P
1.05
30
RFI2
C127
0.81
TAGC
31
0.0047
2.57
32
LO0PSW
2
3
1
0.58 2.59 2.59 2.59 0
C128
0.047
C131
R129
0
0.01
D101
D102
BB202
BB202
L106
L107
2
: AUDIO(DIGITAL) SIGNAL LINE
R102
143K
R114
100K
C133
22P
R134
10
1.44
0
2.49
3.0
2.49
13
12
11
10
9
4
5
6
7
8
1.38
0
0
3.0
1.23
B1ABMB000003
Power Switch
2.96V
2.96V
Q105
2.26V
2.26V
0.67V
0V
Q106
UN9216JTX
Power Switch
VCC-1V7
IC104
C0CBAAE00040
Regulate voltage
at 2.8V
C112
0.22
1.52
1.44
0.70
0.69
17
21
20
19
18
0.5
16
PILFIL
1.35
PHASEFIL
15
14
XTAL2
IC101
1.62
XTAL1
13
FM TUNER
0.02
12
SWPORT2
0.02
SWPORT1
11
2.98
BUSENABLE
10
0
BUSMODE
9
R138
6
7
8
4
5
2.96
2.59 2.96
R135
UN5116RTX
22
Power Switch
2.69V
Q107
0.46V
0V
R142
10
3
: AUDIO(ANALOG) SIGNAL LINE
KEY1
S104
(VOL-)
R117
S103
20K
(VOL+)
VCC-BATT
R104
270K
VCC3V
2
3V
0V
3
2.8V
1
C113
0.22
C101
0.001
R125
C119
33K
0.022
C120
C122
0.022
10P
X101
R136
13MHz
100K
VCC-3V
R137
100K
22
2.79V
0.46V
R140
10K
0.65V
Q108
B1ABCF000020
Power Switch
SV-SW30V(P/PC) SUB CIRCUIT DIAGRAM
4
5
1
2
0.55V
3
4
R116
100K
5
6
R115
100K
1
2
3
4
5
6
TUN-BUS-EN
7
VCC-1V7
8
9
IIC-MST-SCL
10
PWR-OFF
11
IIC-MST-SDA
12
TUN-AUDIO-L
13
14
TUN-AUDIO-R
15
16
17
KEY1
18
19
KEY2
20
21
KEY3
22
23
FM-MODE
24
6
Advertisement
