Read Sony CDX-GT320 / CDX-GT32W / CDX-GT370 / CDX-GT370S Service Manual online
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19
CDX-GT32W/GT320/GT370/GT370S
CDX-GT32W/GT320/GT370/GT370S
5-1. BLOCK DIAGRAM — MAIN SECTION —
SECTION 5
DIAGRAMS
• Signal Path
• R-CH is omitted due to same as L-CH.
11
15
15
22
24
24
26
16
5
7
6
21
27
9
25
18
19
19
8
1,2
AU_LCH
AU_RCH
UNI_SO
UNI_SI
UNI_CLK
Z_MUTE
Z_MUTE
CD_ON
CDM_ON
SYS_RST
EJECT_OK
BUS_ON
BU+3.3V
A_ATT
BU_IN
D_+3.3V
A_+3.3V
A_+3.3V
BU_+3.3V
DR_+6V
R-CH
R-CH
R-CH
R-CH
R-CH
R-CH
SERVO +3.3V
S702
(RESET)
BU_+3.3V
MECHA +6V
MECHA +6V
R-CH
9 AUX-LCH
7 AUX-RCH
R-CH
2 BUS-LCH
1 BUS-RCH
28
LINK OFF
UNISO
59
UNISI
58
UNISCK
60
Z-MUTE
93
CD_ON
98
CDM_ON
99
RESET
77
SYSRST
88
BUSON
BU +3.3V
87
VOUT
1
VDD 2
D512
D510
: AM/MW/SW
: CD PLAY
: FM
: BUS
: AUX
1 ANT
4 TU-LCH
8 AUX GND
ELECTRONIC VOLUME
IC401
J1
(ANTENNA)
TU1
(TUNER UNIT)
CNP301
CD
MECHANISM
UNIT
(MG-101TC)
I2C BUS CONTROLLED
POWER AMP/MULTIPLE
VOLTAGE REGULATOR
IC750
SYSTEM CONTROL
IC501 (1/2)
RESET
IC602
BUS INTERFACE
IC580
CN601
3 TU-RCH
6 CD-LCH
5 CD-RCH
R-CH (FRONT)
R-CH (REAR)
VOLATT
R-CH (REAR)
VOLATT
BATT
R-CH
4
3
13
TU-SCL
14
TU-SDA
6
S-METER
5
QUALITY
7
TU-MUTE
16
E2P-SCL
17
E2P-SDA
39 VSM
38 QUALITY
10 VCC (+8.3V)
11 TU-VDD (TU+5V)
15 E2P-VDD
AUDIO +8.3V
TU+5V
B.U +3.3V
12 TU ATT
25 EEP_CKO
24 EEP_SIO
24 EEP_SIO
L-CH
R-CH
J901
AUX
5
3
3
OUT-FL+
OUT-FL–
9
7
7
OUT-RL+
OUT-RL–
27
R-CH
ANT-REM
35
VP
BATT
20
VP1
6
VP2
30
AUDIO+8.3V
31
33
33
SERVO+3.3V
MECHA+6V
34
PANEL+B
TU+5V
26
24
24
OUT-FR
OUT-RR
R-CH
R-CH
21
22
22
SUBOUT L
SUBOUT R
28
MUTE
4 SCL
AUDIO +8.3V
SERVO+3.3V
MECHA+6V
MECHA+6V
PANEL+B
2 SDA
16 BEEP
22 STB
25 DIAG
25 DIAG
AUDIO +8.3V
7
10
12
11
16
1
9
2
4
3
6
29
30
30
SCL
SDA
19
SAOUT
18
SADA
17
SACLK
15
SACLK
14
SAOUT
46
SAIN
I2C-SCL
I2C-SDA
I2C-SDA
I2C-SCL
I2C-SDA
I2C-SCL
I2C-SDA
I2C-SCL
I2C-SDA
I2C-SDA
VSM
QUALITY
TUATT
EEP-SCL
EEP-SDA
33
I2C_CKO
34
I2C_SIO
9
VOL ATT
86
ATT
5
BEEP
26
AMPSTB
8
DIAG
54
BU IN
12 IN-FL
FL+
FL–
L
R
RL+
RL–
FR+
FR–
RR+
RR–
ANT-REM
BATT
ACC
25
OUT-FL
11 IN-RL
23
OUT-RL
MUTE
Q481
MUTE
CONTROL SWITCH
Q478,479
BATT
72
ACC_IN
BATTERY CHECK
Q580,D580,581
ACCESSORY CHECK
Q631
TU+5V REG
Q1,D1
BU+3.3V
BU +5V
BU+3.3V REG
IC681
MUTE
Q461
29
AMP-REM
5
AMP-REM
REAR
D479
D511
FU601
37
B.UP+B
BU +5V
B.U+5V
FRONT
GT32W/GT320
R-CH
L
J330 (2/2)
R
AUDIO
OUT
L
R
J330(1/2)
BUS
AUDIO
IN
MUTE
Q441
10 B/U-C
3
BATT
CLK
RST
DATA I/O
BUS ON
9 DATA IN
8 DATA OUT
13 RST
12 BIS-IN
11 CLK-IN
5
6
6
8
4
2
3
3
1
4
1
2
BATT
BUS
CONTROL IN
TH580
CN580
7
6
LINK ON/OFF
SWITCH
Q587
BUS ON/OFF
SWITCH
Q586
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