Sony CDX-GT340 / CDX-GT34W Service Manual ▷ View online
CDX-GT34W/GT340
13
3-10. OPTICAL PICK-UP SECTION
3-11. OPTICAL PICK-UP
1
2 optical pick-up section
Note: Be careful not to touch the lens and hologram
terminal when removing the optical pick-up section.
1 tapping screw
(P
1.4)
2 leaf spring (OPS)
3 rack
5 optical pick-up
4 lead screw assy
CDX-GT34W/GT340
14
MEMO
CDX-GT34W/GT340
CDX-GT34W/GT340
15
15
SECTION 4
DIAGRAMS
4-1. BLOCK DIAGRAM – MAIN Section –
11
15
15
22
24
26
16
24
26
16
5
7
7
6
21
27
27
9
18
19
19
8
AU_LCH
AU_RCH
AU_RCH
UNI_SO
UNI_SI
UNI_CLK
Z_MUTE
CD_ON
CDM_ON
UNI_SI
UNI_CLK
Z_MUTE
CD_ON
CDM_ON
SYS_RST
EJECT_OK
BUS_ON
EJECT_OK
BUS_ON
BU+3.3V
A_ATT
D_+3.3V
A_+3.3V
BU_+3.3V
DR_+6V
A_+3.3V
BU_+3.3V
DR_+6V
R-CH
R-CH
R-CH
R-CH
R-CH
R-CH
SERVO +3.3V
BU_+3.3V
R-CH
R-CH
9 AUX-L
7 AUX-R
7 AUX-R
2 BUS-L
1 BUS-R
UNISO
5
UNISI
6
UNISCK
7
Z-MUTE
21
CD_ON
52
CDM_ON
20
RESET
12
SYSRST
43
BUSON
BU +3.3V
44
VOUT
1
VDD 2
25
BUS_IN
BUIN
UNISI
UNISO
UNISCK
SYSRST
BUSON
BUIN
19
1,2
D512
D510
4 FMIN1
3 FMIN2
3 FMIN2
4 TU-L
8 AUX-G
ELECTRONIC VOLUME
IC401
J1
(ANTENNA)
ADVANCED TUNER/
RDS DECODER/PLL
IC1
L6
FM MIX
L2
CNP301
CD
MECHANISM
UNIT
(MG-101L)
I2C BUS CONTROLLED POWER AMP
/MULTIPLE VOLTAGE REGULATOR
IC750
SYSTEM CONTROL
IC501 (1/2)
RESET
IC602
CN601
J330
(2/2)
J330
(1/2)
3 TU-R
6 CD-L
5 CD-R
5 CD-R
R-CH (FRONT)
R-CH (REAR)
R-CH (REAR)
BATT
R-CH
8
9
9
18
SCL
19
SDA
14
RSSI
93 VSM
16 XTAL1
15 XTAL2
LOUT
ROUT
J901
AUX
AUX
X1
4MHz
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
35
33
33
OUT-FR
OUT-RR
R-CH
R-CH
30
31
31
SUB-L
SUB-R
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
27
SACLK
28
SADA
29
SAOUT
I2C-SCL
I2C-SDA
I2C-SDA
I2C-SCL
I2C-SDA
I2C-SDA
I2C-SCL
I2C-SDA
I2C-SDA
I2C-SCL
I2C-SDA
I2C-SDA
29
I2C_SCK
30
I2C_SIO
83
SAIN
89
SADATD
90
SACLK
56
ATT
28
BEEP
58
AMPSTB
57
DIAG
12 IN-FL
FL+
FL–
FL–
L
R
RL+
RL–
RL–
FR+
FR–
RR+
RR–
FR–
RR+
RR–
ANT-REM
BATT
ACC
34
OUT-FL
11 IN-RL
32
OUT-RL
MUTE
Q481
MUTE
CONTROL SWITCH
Q478,479
55
ACC IN
ACCESSORY CHECK
Q631
BU+3.3V REG
IC681
MUTE
Q461
29
AMP-REM
5
AMP-REM
1 AMRFIN
R-CH
D479
D511
FU601
37
BU+B
B.U+5V
AUDIO
OUT
REAR/SUB
L
R
FRONT
L
R
BUS
AUDIO
IN
MUTE
Q441
BU+3.3V
28
LINK_OFF
MECHA +6V
A_8.5V
14
AUDIO +8.5V
B.U +5V
8
B/U-C
UNI SI
UNI SO
BU IN
UNISCK
BUS ON
SYSRST
UNI SO
BU IN
UNISCK
BUS ON
SYSRST
LINK OFF
9
CLK IN
10
BUS IN
11
DATA IN
12
DATA OUT
13 RST
3
5
6
6
8
4
2
3
3
1
BATT
CLK 4
DATA I/O
1
BUS ON
2
RST
BATT
BATT
OVER VOLTAGE
CHECK
Q580,D580,D581
BUS INTERFACE
IC580
BUS
CONTROL
IN
TH580
CN580
7
6
LINK ON/OFF
SWITCH
Q587
BUS ON/OFF
SWITCH
Q586
S702
RESET
SLJQDO PDWK
R-CH LV RPLWWHG GXH WR VDPH DV L-CH.
: AM
: CD PLAY
: FM
: AUX
: BUS AUDIO
CDX-GT34W/GT340
CDX-GT34W/GT340
16
16
4-2. BLOCK DIAGRAM – DISPLAY Section –
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.
tantalums.
• All resistors are in
Ω and 1/4 W or less unless otherwise
specifi ed.
• f : Internal component.
• C : Panel designation.
• 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.)
(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
• B : B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
( ) : AM
< > : CD PLAY
• Voltages are taken with VOM (Input impedance 10 M
( ) : AM
< > : CD PLAY
• Voltages are taken with 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
J
: CD PLAY
F :
FM
f :
AM
L :
AUX
g : BUS AUDIO
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
• a :
• X : Parts extracted from the component side.
• a :
Through
hole.
•
: Pattern from the side which enables seeing.
(The other layers’ patterns are not indicated.)
• Indication of transistor.
C
B
These are omitted.
E
Q
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.
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
Note:
The components identi-
fi
The components identi-
fi
ed by mark 0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specifi ed.
cal for safety.
Replace only with part
number specifi ed.
Note:
Les composants identifi és
par une marque 0 sont
critiques pour la sécurité.
Ne les remplacer que par
une pièce portant le nu-
méro spécifi é.
Les composants identifi és
par une marque 0 sont
critiques pour la sécurité.
Ne les remplacer que par
une pièce portant le nu-
méro spécifi é.
• Waveforms
– MAIN Board –
X502
32.768kHz
10
11
94
1
2
2
100
95
SYSTEM CONTROL
IC501 (2/2)
LCD DRIVE
IC901
KEYIN1
CLK
CE
CE
LCD_SO
LCD_CKO
LCD_CE
DIMMER
KEYIN0
92 KEYACK1
82 RE-IN0
RE-0
RE-1
RE-1
81 RE-IN1
XOUT
XIN
X501
11.06MHz
15
13 OSCOUT
3 NOSE_SW
OSCIN
63
64
62
2
COM1
I
COM4
LCD901
LIQUID
CRYSTAL
DISPLAY
PANEL
60
55
50
I
5
54
|
51
S1
I
S48
DATA
DIMMER
SWITCH
Q931
LED931
PANEL+B
(
)
KEY MATRIX
LSW902–908,
S901–907
(VOLUME)
PUSH SELECT
S909
ROTARY
ENCODER
BACK LIGHT
1
LCD
BACK LIGHT
SWITCH
Q932
LCD BACK
LIGHT
(
)
LED940,944–952,
955,956,960,961,
LSW902–908
KEY
ILLUMINATE
4 SIRCS
REMOTE
CONTROL
SIGNAL
RECEIVER
IC902
40 mVp-p
4 MHz
1.7 Vp-p
32.768 kHz
20 mV/DIV, 100 nsec/DIV
0.5 V/DIV, 10
Psec/DIV
1
IC1
qh (XTAL1)
2
IC501
qa (XOUT)
3.4 Vp-p
11.06 MHz
1 V/DIV, 50 nsec/DIV
3
IC501
qd (OSCOUT)
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