Sony CDX-GT572 Service Manual ▷ View online
CDX-GT572
CDX-GT572
25
25
R977
R985
R984
R978
R979
R990
R992
R993
R993
R991
FB882
FB881
R981
R982
R908
R911
R912
R914
R915
R916
R917
R901
R903
R904
R905
R906
R907
R910
R902
D984
D903
D904
D905
D906
D98
1
S908
S909
S910
S911
S912
S913
S914
S915
S907
S906
S905
S904
S903
S902
S901
D911
C984
C971
C982
C983
C981
C980
IC971
LCD901
FB880
RE901
Q901
R994
J901
LED931
LED930
D982
IC901
R969
CN901
D90
8
D907
D909
R999
LED965
LED966
LED963
LED964
LED961
LED962
LED959
LED960
LED946
LED949
LED993
LED951
LED952
LED954
LED955
LED958
LED956
LED957
LED953
R970
R971
R972
R922
R924
R926
R928
R930
R932
R960
R962
R940
R942
R948
R950
R956
R958
R934
R936
R938
R944
R946
R952
R954
5-10. SCHEMATIC DIAGRAM – KEY Section –
(Page 23)
CDX-GT572
CDX-GT572
26
26
• IC Block Diagrams
IC300 TDA8588AJ/N2/R1 (MAIN Board (1/3))
IC401 BD3442FS-E2 (MAIN Board (2/3))
MUTE
MUTE
ENABLE
LOGIC
STANDBY/
MUTE
BATTERY
DETECTION
CHIP DETECT/
DIAGNOSTIC
PROTECTION/
DIAGNOSTIC
SWITCH
REGULATOR
SWITCH
REFERENCE
VOLTAGE
LOADDUMP
PROTECTION
TEMPERATURE
PROTECTION
BACK-UP
SWITCH
REGULATOR
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
TAB
LF–
LF+
LR–
LR+
IN-RL
S-GND
IN_LF
RR+
RR–
RF+
RF–
DIAG
SW2
SW1
REG3
REG4
VP
REG2
SDA
SCL
VP2
PGND3
SVR
IN_RR
IN_LR
ACGND
PGND2
VP1
STB
PGND1
RST
CRES
REG1
GND
REG5
CBU
FL
RL
RR
VP
FR
I
2
C BUS
1
2
3
4
5
6
5
6
7
8
9
10
14
13
12
11
12
11
BUS ON
SWITCH
RESET
SWITCH
BATTERY
SWITCH
BUS.ON
RST
BATT
CLK
VREF
GND
VCC
RST
BUS.IN
CLK-IN
B/U-C
BUS.IN
CLK-IN
B/U-C
DATA IN
DATA OUT
DATA I/O
1
2
A1
100k
100k
100k
100k
100k
100k
250k
250k
250k
A2
B1 3
4
B2
5
C1
6
C2
7
DP1
8
DN
9
DP2
10
DS32
11
DS12
12
DS22
13
EBIAS
14
DS21
15
DS11
16
DS31
26 OUTF1
27 VCC
VCC
VCC2
28 MUTE
29 SCL
30 SDA
31 GND
32 FIL
INPUT
SELECTOR
VOLUME1
/MUTE
VOLUME2
I2C
BUS
LOGIC
TREBLE
/BASS
/MIDDLE
SPECTRUM
ANALYZER
FADER
25 OUTF2
24 OUTR1
23 OUTR2
FADER
FADER
22 OUTS1
21
20
OUTS2
19
ADJ
18
SOUT
17
DATA
CLK
FADER
FADER
LPF
EFFECT
INPUT
GAIN
FADER
IC601 BA8271F-E2 (MAIN Board (1/3))
CDX-GT572
27
• IC Pin Function Description
IC501 MB90F045PF-G-9060-SPE1 (SYSTEM CONTROL) (MAIN BOARD (3/3))
IC501 MB90F045PF-G-9060-SPE1 (SYSTEM CONTROL) (MAIN BOARD (3/3))
Pin No.
Pin Name
I/O
Description
1
AREASEL0
I
Destination setting pin 0 (Fixed at L in this set)
2
AREASEL1
I
Destination setting pin 1 (Fixed at L in this set)
3
AREASEL2
I
Destination setting pin 2 (L: FM (50k) /MW (9k), H: FM (200k)/MW (10k))
4
AREASEL3
I
Destination setting pin 3 (Fixed at L in this set)
5
BEEP
O
BEEP signal output to power amp IC.
6
COL_SET
I
Key illumination 2 colors select signal input (L: 1 color, H: 2 color) (Fixed at L in this set)
7
NOSE_SW
I
Front panel detach detection signal input (L: with panel, H: without panel)
8
DIAG
I
Status signal input from power amp IC.
9
VOLATT
O
Attenuator control signal output to electoronic volume IC.
10
CYRIL_SEL
I
CYRIL select signal input (L: non CYRIL, H: CYRIL) (Fixed at L in this set)
11
VSS
—
Ground pin
12
TUATT
O
Tuner mute control signal output
13
NSMASK
O
Noise mask signal output Not used in this set. (Open)
14
NCO
O
Not used. (Open)
15
ILLUMI_SEL
I
Illumination voltage setting pin (L: illumination power supply 9 V)
16
NCO
O
Not used. (Open)
17
AUX_SW
O
Not used. (Open)
18, 19
NCO
O
Not used. (Open)
20
MG_SEL
I
Mechanism deck select signal input (L: MG-101TC)
21
B-OUT_SEL
I
Black out select signal input (L: non black out, H: black out) (Fixed at H in this set)
22
DIM_SEL
I
Dimmer select signal input (H: non auto dimmer)
23
VCC5
—
Power supply pin (+3.3V)
24
EEP_SIO
I/O
Serial data signal input/output for EEPROM communication.
25
EEP_CKO
O
Serial clock signal output for EEPROM communication.
26
AMPSTB
O
Stand-by signal output to power amp IC.
27
LCD_CE
O
Chip enable signal output to LCD drive IC.
28
LCD_SO
O
Serial data signal output to LCD drive IC.
29
LCD_CKO
O
Serial clock signal output to LCD drive IC.
30
RDSON
O
RDS (radio data system) ON signal output Not used in this set. (Open)
31
RS-SEL
I
Rear/sub switchable select signal input (L: non rear/sub switchable, H: rear/sub switchable)
(Fixed at L in this set)
(Fixed at L in this set)
32
SA-DATA
O
Data output for electronic volume IC spectrum analyzer.
33
I2C_CKO
O
I2C bus serial clock signal output
34
I2C_SIO
I/O
I2C bus serial data signal input/output
35
DAVDD
—
A/D converter power supply pin (+3.3V)
36
AVRH
—
A/D converter external reference power supply pin (+3.3V)
37
DAVSS
—
A/D converter Ground pin
38
QUALITY
I
Noise detect signal input
39
VSM
I
S-meter voltage detect signal input
40
KEYIN1
I
Key signal input 1
41
KEYIN0
I
Key signal input 0
42
VSS
—
Ground pin
43
RC_IN0
I
Rotary commander key signal input
44
SA_IN
I
Spectrum analyzer signal input
45
SA_CKO
O
Spectrum analyzer clock signal output
46
DOOR_IND
O
DISC IN indicator LED control signal output
47
RE_IN0
I
Rotary encoder signal input 0
48
RE_IN1
I
Rotary encoder signal input 1
49, 50
MD0, MD1
I
Signal input for operation mode designation. (Fixed at H in this set)
51
MD2
I
Signal input for operation mode designation. (Fixed at L in this set)
52
KEYACK
I
Key acknowledgment detect signal input
53
TU_ATTIN
I
Tuner mute zero cross detect signal input Not used in this set. (Pull down)
54
BUIN
I
Back-up power supply detect signal input
55
NCO
O
Not used. (Open)
CDX-GT572
28
Pin No.
Pin Name
I/O
Description
56
DAVN
I
RDS data block synchronized detect signal input Not used in this set. (Pull down)
57
NCO
O
Not used. (Open)
58
UNISI
I
S-BUS data signal input
59
UNISO
O
S-BUS data signal output
60
UNISCK
O
S-BUS clock signal output
61 to 63
NCO
O
Not used. (Open)
64
SIRCS
I
Remote control signal input
65 to 67
NCO
O
Not used. (Open)
68
FLASH_W
I
Memory mode select signal input
Normally “H” input: Single chip mode, after reset “L”: Flash write mode (Fixed at H in this set)
Normally “H” input: Single chip mode, after reset “L”: Flash write mode (Fixed at H in this set)
69
NCO
O
Not used. (Open)
70
DOOR_SW
I
Front panel open/close detection signal input
71
RC_IN1
I
Rotary commander shift key signal input
72
ACC_IN
I
Accessory power supply detect signal input
73
TESTIN
I
Test mode detect signal input Not used in this set. (Pull up)
74
TELATT
I
Telephone attenuate detect signal input Not used in this set. (Pull down)
75
ILLUIN
I
Illumination detection signal input (H: illumination OFF)
76
AD_ON
O
A/D converter power supply control signal output
77
RESET
I
System reset signal input
78
NCO
O
Not used. (Open)
79
XOUT
O
Low speed operation clock signal output (32.768 kHz)
80
XIN
I
Low speed operation clock signal input (32.768 kHz)
81
VSS1
—
Ground pin
82
OSCIN
I
High speed operation clock signal input (18.432 MHz)
83
OSCOUT
O
High speed operation clock signal output (18.432 MHz)
84
VCC3
—
Power supply pin (+3.3 V)
85
DEMOSEL
I
DEMO select signal input (H: DEMO on, L: DEMO off)
86
ATT
O
Audio mute control signal output
87
BUSON
O
BUS ON signal output
88
SYSRST
O
System reset signal output
89
EJECT_OK_SW
O
Eject OK signal output
90 to 92
NCO
O
Not used. (Open)
93
Z-MUTE
I
CD zero cross mute detect signal input
94
NCO
O
Not used. (Open)
95
DEMOSEL
I
Demo select signal input (H: Demo ON)
96
INI_COL
I
Initial color setting signal input (Fixed at L in this set)
97
NCO
O
Not used. (Open)
98
CD_ON
I
CD mechanism servo power supply control request signal input
99
CDM_ON
I
CD mechanism deck power supply control request signal input
100
OPEN-MUTE
O
Mute signal output at during the AUX source mode. (L: other, H: keep)
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