Sony CDX-GT430U / CDX-GT434U Service Manual ▷ View online
CDX-GT430U/GT434U
13
3-10. OPTICAL PICK-UP SECTION
3-11. OPTICAL PICK-UP
optical pick-up section
Note: Be careful not to touch the lens and hologram
terminal when removing the optical pick-up section.
There is space at the end of the
leaf spring (sub guide) to avoid
contact with the slide.
leaf spring (sub guide) to avoid
contact with the slide.
tapping screw
(P
1.4)
leaf spring (sub guide)
leaf spring (OP)
optical pick-up
lead screw assy
Notes for Assembly
Prevent the end of the
leaf spring (sub guide) from being
in contact with the OP slide base.
leaf spring (sub guide) from being
in contact with the OP slide base.
Prevent the end of the
leaf spring (sub guide) from being
in contact with the OP slide base.
leaf spring (sub guide) from being
in contact with the OP slide base.
CDX-GT430U/GT434U
14
For Schematic Diagrams:
Note:
• All capacitors are in
• All capacitors are in
μF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in
Ω and
1
/
4
W or less unless otherwise
specifi ed.
•
f : internal component.
•
C : panel designation.
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in
each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in
each block.)
•
A : B+ Line.
•
B : B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
(
(
)
:
MW
<
> : CD PLAY
*
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 M
Ω).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
J :
CD
F :
FM
f :
MW
L :
AUX
c :
USB
For Printed Wiring Boards:
Note:
•
•
X : Parts extracted from the component side.
•
Y : parts extracted from the conductor side.
•
a
:
Through
hole.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Waveforms
– MAIN Board –
– MAIN Board –
Caution:
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Parts on the pattern face side seen from
the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
Note: The components identifi ed by mark
0 or dotted
line with mark
0 are critical for safety.
Replace only with part number specifi ed.
0.05 Vp-p
4 MHz
0.8 Vp-p
32.768 kHz
0.05 V/DIV, 50 nsec/DIV
0.5 V/DIV, 20 μsec/DIV
IC001
RI (XTAL1)
IC401
RE (X_OUT)
1.7 Vp-p
7.92 MHz
0.5 V/DIV, 50 nsec/DIV
IC401
PE (OSC_OUT)
0.7 Vp-p
8.664 MHz
0.5 V/DIV, 50 nsec/DIV
IC601
(XT1)
SECTION 4
DIAGRAMS
CDX-GT430U/GT434U
CDX-GT430U/GT434U
15
15
4-1. BLOCK DIAGRAM – MAIN Section –
20
22
22
11
12
28
12
28
8
17
18
18
3
25
7
19
27
13
24
27
13
24
4
AU_LCH
AU_RCH
AU_RCH
TXD(MC-BUS)
RXD(MC-BUS)
WAKE UP
Z_MUTE
CD_ON
CDM_ON
RXD(MC-BUS)
WAKE UP
Z_MUTE
CD_ON
CDM_ON
SYS_RST
EJECT_OK
VBUS ON
EJECT_OK
VBUS ON
A_ATT
BU CHECK
MECHA 8.5V
A+3.3V
BU_+3.3V
DR_+6V
BU CHECK
MECHA 8.5V
A+3.3V
BU_+3.3V
DR_+6V
R-CH
R-CH
R-CH
R-CH
R-CH
AUDIO +8.5V
BU_+3.3V
SERVO+3.3V
R-CH
7 AUX-L
9 AUX-R
9 AUX-R
BU+3.3V
MC RX
59
MC TX
60
WAKE UP
58
Z-MUTE
62
CD_ON
27
CDM_ON
28
RESET
54
SYSRST
26
V-BUS ON
BU +3.3V
70
CLK IN
61
MD2
51
MD0
53
FLASH EN1
78
VOUT
1
VIN 2
15
D701
4 FMIN1
3 FMIN2
3 FMIN2
3 TU-L
8 AUX GND
ELECTRONIC VOLUME
IC302
J1
(ANTENNA)
PHASE LOCKED LOOP
(PLL)
IC001
L6
FM MIX
L2
CN701
CD
MECHANISM
UNIT
(MG-101Y)
(1/2)
I2C BUS CONTROLLED
POWER AMP/MULTIPLE
VOLTAGE REGULATOR
IC301
SYSTEM CONTROL
IC401 (1/2)
RESET
IC403
CN802
4 TU-R
5 CD-L
6 CD-R
6 CD-R
R-CH (FRONT)
R-CH (REAR)
R-CH (REAR)
BATT
R-CH
8
9
9
18
SCL
19
SDA
14
RSSI
37 VSM
84 DAVN
76 RDS ON
12
MPXIN
13
MPXOUT
16 MPX
11
SCL
12
SDA
I2C-SCK
I2C-SIO
15
1
7
INTN
16 XTAL1
15 XTAL2
LOUT
ROUT
J901
AUX
X1
4MHz
S401
RESET
5
3
3
OUT-FL+
OUT-FL–
OUT-FL–
9
7
7
OUT-RL+
OUT-RL–
OUT-RL–
27
R-CH
ANT-REM
35
VP
BATT
20
VP1
6
VP2
30
AUDIO+B
31
33
33
SERVO+3.3V
MECHA+6V
34
PANEL+B
34
32
32
OUT-FR
27
SACLK
28
SADA
29
SAOUT
OUT-RR
R-CH
31
R/S OUT-L
13
ZAPPIN1
16
ZAPPIN2
4 SCL
AUDIO +8.5V
SERVO+3.3V
MECHA+6V
PANEL+B
SERVO+3.3V
MECHA+6V
PANEL+B
2 SDA
16 BEEP
22 STB
25 DIAG
22 STB
25 DIAG
7
10
12
11
16
1
9
9
2
4
3
6
37
38
38
SCL
SDA
I2C-SCK
I2C-SIO
I2C-SIO
I2C-SCK
I2C-SIO
I2C-SIO
I2C-SCK
I2C-SIO
I2C-SIO
I2C-SCK
I2C-SIO
I2C-SIO
23
I2C_SCK
72
SACLK
71
SAOUT
38
SAIN
22
I2C_SIO
31
ATT
47
EXATT_XEN
98
ZAPPIN
97
BEEP
68
AMPSTB
69
DIAG
83
BU CHECK
12 IN-FL
FL+
FL–
FL–
L
R
RL+
RL–
RL–
FR+
FR–
RR+
RR–
FR–
RR+
RR–
ANT-REM
BATT
ACC
35
OUT-FL
11 IN-RL
33
OUT-RL
MUTE
Q102
MUTE DRIVE
Q303,304
29
ACC IN
ACC DETECT
Q805
+3.3V REG
IC402
MUTE
Q103
29
AMP-REM
5
AMP-REM
13
TEL-ATT
30
TEL ATT
TEL-ATT DETECT
Q806
1 AMRFIN
REAR/SUB
D306
D308
D309
FU601
37
BU+B
B.U+5V
FRONT
R-CH
L
J302
R
-1
-2
-3
-4
AUDIO
OUT
MUTE
Q104
BU+3.3V
BATT
2
3
BACK-UP CHECK
Q802,807,808,
D806,807
9 XTI
10 XTO
VDDA
VDDD
BU
+3.3V
+3.3V
X601
8.664MHz
RDS DEMODULATOR
IC601
MECHA +6V
3.3V
6
UART_CLK
3
FLASH_W
7
CLK IN
2
RESET
RX
4
1
5
TX
CN401
FLASH
PROGRAMMING
BU +3.3V
B.U +5V
R-CH (REAR/SUB)
30
R/S OUT-R
RDS +3.3V
CONTROL SWITCH
Q601,602
CD MUTE
Q305
FLASH
PROGRAMMING
BUFFER
Q401,402
• Signal Path
• R-CH is omitted due to same as L-CH.
: MW
: CD
: FM
: AUX
CDX-GT430U/GT434U
CDX-GT430U/GT434U
16
16
4-2. BLOCK DIAGRAM – DISPLAY Section –
X402
32.768kHz
14
13
39
49
50
48
50
48
40
SYSTEM CONTROL
IC401 (2/2)
LCD DRIVER,LED CONTROL
IC901
KEYIN1
CLK LCD
CE
CE
LCD_SO
LCD_SCK
LCD_CE
KEYIN0
46 KEYACK1
11 RE-IN0
RE0
RE1
RE1
12 RE-IN1
XOUT
XIN
X401
7.92MHz
92
93 OSCOUT
7 NOSE_SW
OSCIN
63
64
62
DIMMER 2
BLINK 4
BACK-LIGHT 1
COM4
I
COM1
LCD901
LIQUID
CRYSTAL
DISPLAY
PANEL
5
|
50
•
55
•
60
51
|
54
SEG48
I
SEG1
DATA
PANEL+B
KEY MATRIX
LSW901,905–913,
S902–908
(VOLUME)
PUSH ENTER/SELECT
RE901
ROTARY
ENCODER
95 SIRCS
REMOTE
CONTROL
SIGNAL
RECEIVER
IC902
Q907
LED
DRIVER
Q901
LCD BACK LIGHT
DIMMER
CONTROL
Q902
LCD BACK
LIGHT
CONTROL
LED907,911,913-915,
922,924,925,930,931,
922,924,925,930,931,
LSW901,905-913
LED926-929 (GT434U)
LED928,932,935 (GT430U)
(RING ILLUMINATION)
LED901
(LCD BACK LIGHT)
3
USB POWER
CONTROL SWITCH
IC503
99
SYNC OUT
24
USB OVER
21
USB ON
BATT
100
DD ON
VIN
VBUS
1
3
VOUT
D505
L502
DC/DC CONVERTER
CONTROL
IC502
CD
MECHANISM
UNIT
(MG-101Y)
(2/2)
USB D+
USB D–
USB D–
3 CLR
2 B
5
Q
DC/DC CONVERTER
IC501
6
DRV
1 RC
2
CONT
USB POWER
SWITCH
Q502
USB POWER
CONTROL
Q501
SWITCHING
REGULATOR
Q503
D510
USB OVER
CURRENT DETECT
Q504,505
1
3
2
3
2
VBUS
D+
D–
D–
4
CN902
(USB)
D502
34 RC IN1
45 KEYACK0
41 RC IN0
J801
(REMOTE IN)
• Signal Path
: USB
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