Read Sony CDX-GT310 Service Manual online
15
15
CDX-GT310
CDX-GT310
4-1. BLOCK DIAGRAM — MAIN SECTION —
SECTION 4
DIAGRAMS
J901
AUX
AUX R-CH
1 ANT
SCL
SDA
SDA
A ATT
CDMON
CDON
9 AUX-LCH
ELECTRONIC VOLUME
IC401
J1
(ANTENNA)
TU1
(TUNER UNIT)
I2C BUS CONTROLLED POWER AMP/
MULTIPLE VOLTAGE REGULATOR
IC300
SYSTEM CONTROL
IC501 (1/2)
CN300
7 AUX-RCH
BATT
6 CD-LCH
5 CD-RCH
6
S-METER
7
TU MUTE
16
E2P SCL
17
E2P SDA
39 VSM
5
QUALITY
9
RDS OUT
38 QUALITY
8
MUTE CON
53 TU ATTIN
56 DAVN
BU+3.3V
26 RDS ON
92 CDMON
91 CDON
61 Z MUTE
91 CDON
61 Z MUTE
11
VDD+5V
4
L-CH
3
R-CH
BU+3.3V
10
VCC
12 TUATT
13 NSMASK
25 EEP CKO
24 EEP SIO
24 EEP SIO
CD ON
CDM ON
CD L
CD R
4 TU-LCH
3 TU-RCH
CD-RCH
R-CH(REAR)
TU-RCH
AUDIO+8.3V
AUDIO+8.3V
24
OUT-RR
R-CH(FRONT)
26
OUT-FR
5
3
3
OUT FL+
OUT FL–
9
7
7
OUT RL+
OUT RL–
29
27
27
AMP REM
R-CH
ANT REM
BATT
30
37
37
AUDIO+B
35
VP
BU+B
31
33
33
SERVO3.3V
MECHA6V
34
PANEL+B
28
MUTE
2 SDA
AUDIO+8.3V
BU+5V
SERVO+3.3V
MECHA+6V
MECHA+6V
PANEL+B
4 SCL
SDA
SCL
16 BEEP
22 STB
25 DIAG
25 DIAG
15
13
7
10
12
11
16
1
9
2
4
3
5
6
29
30
30
SCL
SDA
SCL
SDA
SCL
SDA
9
VOLATT
100
ATT
33
I2C SCK
34
I2C SIO
96
BUIN
97
TESTIN
12 IN FL
FL+
FL–
RL+
RL–
FR+
FR–
RR+
RR–
AMP-REM
ANT-REM
ACC
TEST
11 IN RL
23
OUT-RL
25
OUT-FL
MUTE
Q432
AUDIO OUT
REAR
MUTE CONTROL
SWITCH
Q491,492
60
UNISI
54
UNISO
58
UNISCK
59
BUSON
88
SYSRST
12
B/U-C
11
DATA OUT
10
DATA IN
8
CLK IN
LINKOFF
9
BUS IN
13 RST
RESET
3
5
6
6
8
4
2
3
3
1
BATT
CLK 4
DATA I/O
1
BUS ON
2
RST
SYSRST
UNISO
UNISI
B/U CHECK
UNICLK
BUSON
99
ACCIN
ACCESSORY CHECK
Q702
BATT
BATT
BATTERY
CHECK
Q605
BUS INTERFACE
IC601
MUTE
Q470
MUTE
Q440
D491
F901
R-CH
21
22
22
SUBOUT-L
SUBOUT-R
R-CH
L
R
J652 (2/2)
BUS
CONTROL IN
D353
D609
D602
DISPLAY
SECTION
A
TH400
CNJ400
7
BATT
TUNER+5V
REG
Q3
NOISE MASK
SWITCH
Q1
RDS+3.3V
SWITCH
Q50
RDS MODULATOR
IC50
15
E2PVDD
13
TU-SCL
14
TU-SDA
BU+5V
BU+3.3V
REG
IC681
TEL ATT
98
TELATT
TELEPHONE ATTENATION
CHECK
Q701
7
DIAG
8
AMPSTB
5
BEEP
D493
BUS
AUDIO
IN
BUS-RCH
L
R
J652 (1/2)
2 BUS-LCH
1 BUS-RCH
BUS-RCH
CD-RCH
AUX-RCH
TU-RCH
ZMUTE
Z MUTE
SYS RST
MECHA+6V
BU+3.3V
SERVO+3.3V
B/U CHECK
A ATT
BUS ON
UNI SI
UNI CLK
DR+6V
BU+3.3V
A+3.3V
D+3.3V
UNI SO
LINK OFF
CDON
CDMON
ZMUTE
SYSRST
B/U CHECK
A ATT
BUSON
UNISI
UNICLK
UNISO
LINKOFF
BUS ON
SWITCH
Q601
CD
MECHANISM
UNIT
(MG-101TA)
6
11
SCL
15
INTN
16 MPX
XTO
XTI
12
SDA
SCL
SDA
1
VDDA
7
VDDD
10
9
X50
8.664MHz
LINK OFF
SWITCH
Q600
• Signal Path
• R-CH is omitted due to same as L-CH.
: CD PLAY
: FM
: AUX
: MW/LW
(Page 16)
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