Sony CDX-GT572 - Troubleshooting: Radio and Errors; Radio Reception Problems; Error Messages and Displays

CDX-GT572
CDX-GT572
1717
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
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
DP1R-CH
R-CH
R-CH
ANT
10
VCC8.3V
12C-SCL
12C-SDA
12C-SCL
BATT
R-CH
12C-SDA
VSM
TUATT
EEPCKO
EEPSIO
AU_LCH
AU_RCH
EJECT_OK
UNISO
UNISI
UNICLK
Z-MUTE
CD-ON
CDM-ON
LINK_OFF
SYS_RST
BUS_ON
B/U_CHECK
A-ATT
D_3.3V
A_3.3V
BU_3.3V
DR_6V
MECHA6V
+3.3V
SERVO3.3V
UNISI
UNISO
UNISCK
SYSRSTLINK_OFF
BUSON
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
2
4
12
3
11
5
6
16
7
10
15
21
22
24
26
16
5
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, MULTI
VOLTAGE REGULATOR
IC300
CN300
SYSTEM CONTROL
IC501 (1/2)
BUS INTERFACE
IC601
RESET
IC602
R-CHR-CH
R-CH
R-CH
CD
MECHANISM
UNIT
(MG-101TC)
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
-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
: MW
• Signal Path
• R-CH is omitted due to same as L-CH.
: CD
: AUX
: FM
DISPLAY
SECTION
A
5-1. BLOCK DIAGRAM – MAIN Section –
(Page 18)