Read Sony CDX-GT610U / CDX-GT660U / CDX-GT660US Service Manual online
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21
CDX-GT610U/GT660U/GT660US
CDX-GT610U/GT660U/GT660US
4-1. BLOCK DIAGRAM — MAIN SECTION —
SECTION 4
DIAGRAMS
1 ANT
SCL
SDA
SDA
CDMON
CDON
ELECTRONIC VOLUME
IC401
J1
(ANTENNA)
TU1
(TUNER UNIT)
I2C BUS CONTROLLED POWER AMP/
MULTIPLE VOLTAGE REGULATOR
IC300
SYSTEM CONTROL
IC501 (1/2)
CN300
CN410
(REAR)
(FRONT)
(REAR)
(FRONT)
BATT
6 CD-LCH
5 CD-RCH
6
S-METER
7
TU MUTE
16
E2P SCL
17
E2P SDA
39 VSM
5
QUALITY
38 QUALITY
99 CDM ON
98 CDON
93 Z MUTE
98 CDON
93 Z MUTE
11
VDD+5V
4
L-CH
3
R-CH
BU+3.3V
10
VCC
12 TUATT
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
A ATT
TU-RCH
AUDIO+8.3V
AUDIO+8.3V
19
SOUT
18
DATA
5
3
3
OUT FL+
OUT FL–
9
7
7
OUT RL+
OUT RL–
29
27
27
AMP REM
R-CH
ANT REM
37
REG1
35
VP
BATT
20
VP1
6
VP2
REG2
31
33
33
REG3
REG4
34
REG5
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
SA CLK
SA DATA
SA IN
SDA
SCL
SDA
9
86
VOLATT
ATT
33
I2C CKO
34
I2C SIO
87
BUIN
73
TESTIN
12 IN RR
FL+
FL–
RL+
RL–
FR+
FR–
RR+
RR–
AMP-REM
ANT-REM
ACC
TEST
17
CLK
MUTE
Q470
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
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
72
ACCIN
ACCESSORY CHECK
Q702
BATT
BATT
OVER VOLTAGE
CHECK
Q605
BUS INTERFACE
IC601
MUTE
Q430
MUTE
Q426
MUTE CONTROL
SWITCH
Q423
MUTE
Q440
SA IN
SA DATA
44
SA IN
32
SA DATA
SA CLK
45
SA CKO
D491
FU601
R-CH
23
24
24
OUTR2
OUTR1
R-CH
L
R
J451 (2/2)
AUDIO OUT
FRONT
R-CH
25
26
26
OUTF2
OUTF1
R-CH
L
R
SUB
OUT
OUT
21
OUTS2
L
R
BUS
CONTROL IN
D400
D602
DISPLAY
SECTION
A
TH400
CNJ400
7
BATT
TUNER+5V
REG
Q3
15
E2PVDD
13
TU-SCL
14
TU-SDA
BU+5V
BU+3.3V
REG
IC502
11 IN RF
TEL ATT
74
TELATT
TELEPHONE ATTENATION CHECK
Q701
14
ILL
75
ILLUIN
8
DIAG
26
AMPSTB
7
BEEP
BUS
AUDIO
IN
BUS-RCH
L
R
J451 (1/2)
Q471
9 BUS-LCH
7 BUS-RCH
BUS-RCH
CD-RCH
TU-RCH
ZMUTE
91 WAKE UP
WAKE UP
89 EJECT OK SW
17 AUX SW
EJECT OK
27 MC RX
MC RX
28 MC TX
MC TX
Z MUTE
SYS RST
MECHA+6V
BU+3.3V
SERVO+3.3V
BU IN
RXD
TXD
DR+6V
BU+3.3V
A+3.3V
D+3.3V
CDON
CDMON
ZMUTE
WAKE UP
WAKE UP
SYSRST
EJECT OK
EJECT OK
BU IN
MC TX
MC RX
CD
MECHANISM
UNIT
(MG-101U)
(1/2)
6
BUIN
ILLUMINATION CHECK
Q703
30
• Signal Path
• R-CH is omitted due to same as L-CH.
J
: CD PLAY
K
: FM
L
: BUS
f
: MW/LW
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
J
J
K
L
L
K
f
K
(Page 22)
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