7 8 9 10 11 12
A
:POSITIVE VOLTAGE LINE
:AUDIO(DIGITAL) SIGNAL LINE
:AUDIO(ANALOG) SIGNAL LINE
JK1
R
L
G
2
1
3
4
5
CN1
USB DEVICE
L7
600
C35
6.3V10
R31
499K
Q3
Q4
C24
1
R35
1.5K
R33
10K
C36
C37
22P
22P
R37
47K
HOLD
C25
0.1
20
2
1
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
24
21
22
23
0.1
C41
R49
120K
C38
6.3V10
L8
600
R29
10K
R30
10K
NF-CE
BK-LED
USB-VB
USB-DP
R15
100K
R28
470K
C31
6.3V10
L3
600
SV-SW31V(GC/GK) MAIN CIRCUIT DIAGRAM
L4
L5
L6
R38
22
R5
100K
Schematic diagram-2
CN2
VCC-BATT
VCC-3V3
VCC-2V5
PWR-OFF
VCC-1V7
TUN-BUS-EN
IIC-MST-SDA
IIC-MST-SCL
TUN-AUDIO-L
TUN-AUDIO-R
KEY1
KEY2
KEY3
FM-MODE
VCC-1V7
VCC-3V3
USB-DP
USB-DM
USB-VB
USB-CON
HOLD
VCC-3V3
VCC-3V3
VCC-3V
S1
VCC-3V
Q5
2SA1774STL
SUB Switch
VCC-3V3
VOUTR-HP
VOUTL-HP
VREF-HP
PWR-OFF
LCD-RESET
FM-MODE
NF-WP
SAA-3V3
BATT-IND
SAA-2V5
SAA-COD-3V
VCC-3V3
KEY3
FM-MODE
KEY2
KEY1
TUN-AUDIO-R
SAA-1V7
TUN-BUS-EN
BATT-IND
SAA-RESET
C42
0.001
2
1
3
4
VCC-2V5
SAA-2V5
2SD22160SL
Reset Switch
C27
6.3V10
L2
600
SAA-3V3
VCC-3V3
Q3,4
2.96V
2.96V
1.38V
0.11V
0V
0V
2.96V
0.11V
0.60V
R51
1M
L11
L9
L10
100P
C43
100P
C47
100P
C46
TUN-ANT
VCC-2V5