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

CDX-GT48UM/GT480U/GT480US/GT484US
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
MAIN
1
BOARD
(1/3)
D
(Page 19)
5
0
6
E
7
8
9
F
G
29
H 30
MAIN
3
BOARD
(3/3)
I (Page 21) 32
33
34
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
0 0 0 0
R217 R117 R207 R107
10k 10k 10k 10k
R106
R216 R116 R206
220
220 220 220
C112 C206 C106
R213 SA_CLK
10 10 10
10k
0 50V 50V 50V
SA_DA
C212
10
50V
SA_IN
R113
10k
R212 C208
0
1k 10 50V
R112
C108
1k 10 50V
R309
10
C316 C317
0.1 220 16V
I2C_SCK
I2C_SIO
C319
10 50V
ZAPPIN
R311
47k
7 8
R829
0
IC302 IC B/D
ELECTRONIC VOLUME
IC302
BD3447AFV-E2
DS3_L
DS3_R
4.2 4.2
DS1_L
DS1_R
4.2 4.2
DS2_R DS2_L
I2C_SCK
R404
0
EBIAS EBIAS I2C_SIO
3.8
RING_LCH
ZAPPIN2
RING_RCH
NCO
0
SA_CLK NCO
0 3.8
SA_DA
ZAPPIN1
0
SA_OUT
NCO
4.2
R/S_OUT_RCH
NCO
4.2
R/S_OUT_LCH
NCO
4.2 3.4
OUT_RRCH
AUX_RCH
4.2
OUT_RLCH
AUX_GND
4.2 3.4
OUT_FRCH
AUX_LCH
4.2 OUT_FLCH 3.8
CD_RCH
8.3 3.8
VCC CD_LCH
C812
1
3.3 3.8
SCL TU_RCH
3.3 3.8
SDA TU_LCH
C813
GND BUS_RCH 1
3.8
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
20 20
9 10 11
IC B/D
IC001
PHASE LOCKED LOOP(PLL)
FB101
FB201
IC001
L1
3.3uH C28 TEF6607T/V4/S470,518 X1 C18
47 16V 4MHz 12p
5.9
GNDD XTAL1
R14
100 3.3 6
SCL
XTAL2
R13 1
100 3.3 0.7
RSSI
SDA
C27 4.1
R10 R6
0.1
3.4 (5)
33k 68k
MPXOUT
VREF
3 C17
0.1
7 (3.6)
VREGSUP
C26 MPXIN
0.4
R12
0.1
22
8.3 VCC1 (2)
AMIFAGC2
C16
0.47
GND GNDAUD
C25
R5
0.1
5.6 3.8 0
VCODEC ROUT
C24 R11
R4
0.1
4.7k 2.7 3.8 0
PLL LOUT
0
C23
0.01 2.2 (1.8)
PLLREF
AMRFAGC
C22
C13
L6
0.01 8.3
2.2
TEST VCC2
FM MIX
L8 0 C9 C8
560uH
(1.2) 0.1 0.01
AMSELIN1
3
GNDRF
0 3.1
L7
560uH
(1.2) AMSELIN2 (2.9) C7
FMIN1 2
1.2 3.1 6p
C21
1
(2.9) AMIFAGC1 (2.9)
FMIN2 1
8.3
C20 C12
0.01 (6.6) AMSELOUT1 0 0.22
AMRFDEC
8.3
C19
0.01 (6.6) AMSELOUT2 0
AMRFIN
R3 L2
C5
2.2uH
0
1000p
JW126 JW102
C524
0.1
100
R304 0
12 13 14
G
C213 100p
J302
-4 4P
R
C113 100p
FRONT
-3
L
C207 100p
AUDIO OUT
-2
R
100p
C107
REAR/SUB
-1
L
4
VR1
C6
R15
10p
0
6
J1
C1
(ANTENNA)
1000p
R16
0
R2 R1
470k 470k
CAM002
CN403
20P
GND
1
USB_VBUS
2
C520
GND
3
10V
USB_GND
4
KEY_GND
5
R527 10
USB_D+
6
7 AUX_LCH
8 USB_D-
R526 10
9 KEY1
KEY
A
10 AUX_RCH BOARD
CN901
11 RE1
(Page 23)
12 AUX_GND
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
USB_D-
2
(MG-101Y)
(1/2)
USB_GND
3