Schematic Diagram -Main Section (2/3) - Sony CDX-GT48UM Service Manual

CDX-GT48UM/GT480U/GT480US/GT484US
Q Q
3 7 6 3 1 5 1 5 0
4-5. SCHEMATIC DIAGRAM – MAIN Section (2/3) –
1 2 3
A
MAIN BOARD (2/3)
B
1
2 Q102-104,202-204
MUTE
C
3
4
0
0
MAIN
1
BOARD
(1/3)
D
(Page 19)
5
0
0
6
T E
L 1 3 9 4 2 2 9 6 5 1 3
E
7
8
9
F
G
29
30
H
MAIN
3
BOARD
(3/3)
I (Page 21) 32
33
34
w w w
35
39
40
41
J
CDX-GT48UM/GT480U/GT480US/GT484US
• See page 17 for waveforms. • See page 24 for IC Block Diagrams.
4 5 6
0 0 0 0
ELECTRONIC VOLUME
0 0 0 0
4.2
4.2
R217 R117
R207 R107
10k 10k 10k 10k
R106
R216 R116 R206
220
220 220 220
C112 C206 C106
R213 SA_CLK 0
10 10 10
10k 50V 50V 50V
C212 SA_DA 0
10
50V
SA_IN 0
4.2
R113
4.2
10k
R212 C208
10 50V
1k
4.2
4.2
R112
C108
1k 10 50V 4.2
4.2
8.3
R309
10 3.3
C316 C317
0.1 220 16V
3.3
I2C_SCK
3.8
I2C_SIO
C319
10 50V
ZAPPIN
R311
47k
x a o
y
. i
http://www.xiaoyu163.com
7 8 9
R829
0
IC B/D
IC302
IC302
BD3447AFV-E2
DS3_R DS3_L L1
3.3uH
4.2
DS1_R DS1_L
4.2
DS2_R DS2_L I2C_SCK
R404
0
EBIAS EBIAS I2C_SIO
3.8
RING_LCH
ZAPPIN2
RING_RCH
NCO
C26
0.1
SA_CLK NCO
3.8
SA_DA
ZAPPIN1
SA_OUT
NCO
C24
R/S_OUT_RCH
0.1
NCO
R/S_OUT_LCH
NCO
3.4
OUT_RRCH
AUX_RCH
OUT_RLCH
AUX_GND
OUT_FRCH 3.4
Q Q
AUX_LCH
3 7 6
OUT_FLCH 3.8
CD_RCH
3.8
VCC CD_LCH
C812
1
3.8
SCL TU_RCH
3.8
SDA TU_LCH
C813
1
GND BUS_RCH
FIL BUS_LCH
C318
1
C205 C323
C105
1 2.2
1
50V 50V
50V
R104
12k
R302
2.2k
R204
R203
12k
R103
470
470
CAM003
C204 C104
4700p 4700p
KEY1
RE1
RE0
KEY0
LCD_CE
SIRCS
LCD_CLK
LCD_DATA
NOSE_SW
u 1 6 3
.
20 20
2 4
8 9 9
10 11 12
C213 100p
C113 100p
IC B/D
C207 100p
IC001
100p
C107
PHASE LOCKED LOOP(PLL)
FB101
FB201
IC001
C28 TEF6607T/V4/S470,518 X1 C18
4MHz
47 16V 12p
5.9
GNDD XTAL1
R14
100 3.3 6
SCL
XTAL2
1
R13
100 3.3 0.7
RSSI
SDA 4.1
C27
R10 R6
0.1
3.4 (5) 33k 68k
MPXOUT
VREF
3 C17
0.1
7 (3.6)
VREGSUP
MPXIN 0.4
R12
22 8.3 VCC1 (2)
AMIFAGC2
C16
0.47
GND GNDAUD
C25
R5
0.1
5.6 3.8 0
VCODEC ROUT
R11
R4
4.7k 2.7 3.8 0
PLL LOUT
0
C23
0.01 2.2 PLLREF (1.8)
AMRFAGC
C22
C13
L6
0.01 8.3 2.2
TEST VCC2
FM MIX
L8 0 C9
C8
560uH 0.1 0.01
(1.2) AMSELIN1
GNDRF 3 4
0 3.1
L7
560uH
(1.2) AMSELIN2 (2.9) C7
FMIN1 2
3 1.2 1 5 1 3.1 5 0 6p 8 9 2 R15
C21
1 0
(2.9) AMIFAGC1 (2.9)
FMIN2 1 6
8.3
C20 C12
0.01 (6.6) AMSELOUT1 0 0.22
AMRFDEC
8.3
C19
0.01 (6.6) AMSELOUT2 0
AMRFIN
L2
R3 R16
C5
0 2.2uH 0
1000p
R2
JW126 JW102 470k
C524 C520
0.1
100 10V
R304 0
m
c o
2
8 9 9
13 14
G
J302
-4
4P
R
FRONT
-3
L
AUDIO OUT
-2
R
REAR/SUB
-1
L
VR1
C6
4 9 8 2 9 9
10p
J1
C1
(ANTENNA)
1000p
R1
470k
CAM002
CN403
20P
1 GND
2 USB_VBUS
3 GND
4 USB_GND
KEY_GND
5
R527 10
USB_D+
6
AUX_LCH
7
USB_D-
8
R526 10
KEY1
9
KEY
A
AUX_RCH
10 BOARD
CN901
RE1
11
(Page 23)
AUX_GND
12
RE0
13
KEY0
14
LCD_CE
15
SIRCS
16
LCD_CLK
17
LCD_DATA
18
19 ILL+B
20 PANEL(NOSE SW)
CN501
3P
1 USB_D+
CD MECHANISM
UNIT
2 USB_D-
(MG-101Y)
(1/2)
3 USB_GND