Read Sony CDX-GT520 / CDX-GT52W Service Manual online
17
17
CDX-GT52W/GT520
CDX-GT52W/GT520
4-1. BLOCK DIAGRAM — MAIN SECTION —
SECTION 4
DIAGRAMS
(Page 18)
1
4
8 DN
4 B2
3 B1
6 C2
39 VSM
12 TU ATT
33
I2C_CKO
SCL
SCL
SDA
SDA
SA_IN
SA_IN
MUTE
R-CH (REAR)
SA_CLK
SA_CLK
MUTE
SYSRST
BUSON
UNISCK
UNISCK
BUIN
UNISI
UNISO
LINK_OFF
DOOR_SW
SA_DATA
34
I2C_SIO
44
SA_IN
45
SA_CLO
32
SA_DATA
9
VOLATT
5
BEEP
26
AMPSTB
8
DIAG
72
ACC_IN
25 EEP_CKO
24 EEP_SIO
38 QUALITY
89 EJECT_OK_SW
59 UNISO
58 UNISI
60 UNISCK
93 Z-MUTE
98 CD_ON
99 CDM_ON
88 SYSRST
77 RESET
87 BUSON
54
86
BUIN
1 VOUT
+3.3V
2
VDD
ATT
100
OPEN-MUTE
5 C1
4 SCL
2 SDA
16 ACGND
22 STB
25 DIAG
13 RST
3
BATT
BATT
BATT
CNJ400
(BUS CONTROL IN)
D603
D602
TH400
2
RST
1
BUS ON
4
CLK
6
5
6
4
2
3
1
7
8
DATA I/O
DISP+B (+9V)
ACC
ANT-R
AMP-R
R-CH
RR-
RR+
FR-
FR+
+B
RL-
RL+
FL-
FL+
11 IN-RF
12 IN-RR
3
LF-
5
LF+
7
LR-
9
LR+
27
SW2
29
SW1
33
REG4
34
REG5
31
REG3
30
REG1
37
REG2
35
VP
29
SCL
30
SDA
17
CLK
19
SOUT
28
MUTE
24
OUTR1
26
OUTF1
23
OUTR2
25
OUTF2
21
OUTS2
18
DATA
9 DP2
1 A1
2 A2
7 DP1
R-CH
R-CH
R-CH
ANT
10 VCC8.3V
12C-SCL
12C-SDA
12C-SCL
BATT
R-CH
12C-SDA
VSM
TUATT
TUATT
EEPCKO
EEPSIO
AU_LCH
AU_RCH
EJECT_OK
UNISO
UNISI
UNICLK
Z-MUTE
CD-ON
CDM-ON
LINK_OFF
SYS_RST
LINK_OFF
SYS_RST
BUS_ON
B/U_CHECK
A-ATT
D_3.3V
A_3.3V
BU_3.3V
D_3.3V
A_3.3V
BU_3.3V
DR_6V
MECHA6V
+3.3V
SERVO3.3V
UNISI
UNISO
UNISCK
SYSRST
LINK_OFF
BUSON
BUIN
BUIN
R-CH
D511
D400
D493
D491
D494
11 VDD5V
15 E2PVDD
AU8V
TU+5V
+3.3V
L
3
R
14
SDA
13
SCL
7
TUN_MUTE
6
S-METER
17
E2PSDA
5
QUALITY
11
1
9
9
2
4
12
3
11
5
6
16
7
10
15
21
22
24
21
22
24
26
16
16
5
7
7
28
27
25
9
18
19
8
1,2
6
16
E2PSCL
-2
R
-1
L
J451 (1/2)
BUS
AUDIO
IN
J901
J1
(ANTENNA)
CN350
S103
RESET
AUX
TU1
TUNER UNIT
ELECTRONIC VOLUME
IC401
POWER AMP/MULTIPLE
VOLTAGE REGULATOR
IC300
CN300
SYSTEM CONTROL
IC501 (1/2)
BUS INTERFACE
IC601
RESET
IC602
R-CH
R-CH
R-CH
R-CH
CD
MECHANISM
UNIT
(MG-101FC)
SA_DATA
R-CH
R-CH (FRONT)
MUTE DRIVE
Q491,492
ACC DETECT
Q702
+5V REG
Q3
LINK ON/OFF CONTROL
Q600,601
BATTERY CHECK
Q605
MUTE
Q470
MUTE
Q440
MUTE
Q430
MECHA6V
SERVO3.3V
AU8V
U-COM (+5V)
BATT
FU601
R-CH
J451 (2/2)
-5
L
-6
R
CN410
-1
L
-2
R
-3
L
-4
R
FRONT AUDIO OUT
SUB OUT
(MONO)
REAR AUDIO OUT
12 BUSIN
11 CLK-IN
10 B/U-C
8 DATA OUT
9 DATA IN
3 VOUT
U-COM (+5V)
+3.3V
2
VIN
+3.3V REG
IC502
TU+5V
AU8V
: AUDIO
: AM
• Signal Path
• R-CH is omitted due to same as L-CH.
: CD
: AUX
: FM
DISPLAY
SECTION
SECTION
A
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