Sony CDX-GT700D / CDX-GT705DX Service Manual ▷ View online
21
21
CDX-GT700D/GT705DX
CDX-GT700D/GT705DX
4-3. BLOCK DIAGRAM — DISPLAY SECTION —
T620
DC-DC
CONVERTER
TRANSFORMER
DC-DC
CONVERTER
IC620
D623,624
D620,621
D622
FL+4.3V
BATT
BATT1
FL+1V
FL+55V
X301
32.768kHz
REMOTE
CONTROL
SIGNAL
RECEIVER
IC903
EEPROM
IC802
9
8
11
13
84
98
99
85
55
86
10
FL DISPLAY DRIVE
IC901
FL900
FLUORESCENT
INDICATOR
TUBE
KEY_IN0
DISP SI/RX
DISP SO/TX
LAT_TA2_OUT
FL_DAT1
FL_DAT2
FL_DAT3
FL_DAT3
FL_CLK_IN
KEY_IN1
88 KEY_ACK0
89 KEY_ACK1
87 KEY_ACK2
FL+3.3V
Q624
S302
(FRONT PANEL DETECT)
BU+3.3V
FLD_ON
RC_IN1
RC_IN0
RESET
1 SIRCS
EESIO (DSP)
EECKO (DSP)
EECKO (DSP)
2 IN
1
OUT
2
OUT
5
SDA
6
36
35
SCL
XCOUT
XCIN
XOUT
XIN
X302
6MHz
S303
RESET
30
29
SYS_SI
SYS_SO
93
DISP_CE
1 SYS_CE
LAT
SI1
SI2
SI3
SI2
SI3
CLK
GCP_TA4_IN
BK_TA3_OUT
GCP_TA0_OUT
100
DISP CKO
31 SYS_CLK
90
DISP_RESET
10 RESET
1
RESET
IC904
ILL+B
91
NOSE_SW
92
DOOR SW
73
FSW OUT
2
FSW-IN
72
FL_ON
74
FLD_ON
95
DOOR_IND
LED911–921,923–925
LSW903(1/2)–913(1/2)
LSW903(1/2)–913(1/2)
LED931,932
CN902
BU+3.3V
RESET
STBY
KEY MATRIX
S900–905,906(2/2),
907–911
LSW903(2/2)–913(2/2)
SYSTEM CONTROL
IC303 (3/3)
78 RE_A
77 RE_B
X901
6.75MHz
ROTARY ENCODER
S906(1/2)
VOL/
PUSH SOUND
S901
Z
RESET
IC302
CNJ101
(REMOTE IN)
LED DRIVE
Q134,601
24
12
33
6
99
5
3
4
35
FL_CLK_IN 5
FL_CLK_OUT 100
7
28
22
19
XOUT 11
XIN 13
MAIN
SECTION
C
FL B+
SWITCH
Q301,302
POWER
CONTROL
Q623,Q642
SWITCHING
DRIVE
Q620
DC-DC
CONVERTER
CONTROL
Q621,622
7
4
1
5
VCC
OUT
IN
CT
D907
GCP
11
BK
13
(Page 20)
22
22
CDX-GT700D/GT705DX
CDX-GT700D/GT705DX
• NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
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.)
For schematic diagrams.
Note:
• All capacitors are in µF unless otherwise noted. (p: pF)
• All capacitors are in µF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in Ω and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
• C : panel designation.
For printed wiring boards.
Note:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
• 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.)
• A : B+ Line.
• B : B– Line.
• H : adjustment for repair.
• Voltages and waveforms are dc with respect to ground
• B : B– Line.
• H : adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• CD mechanism section (1/2), (2/2)
no mark : CD PLAY
• Main (1/4), (2/4), (3/4), (4/4) and Display sections
no mark : FM/MW/LW
no mark : CD PLAY
• Main (1/4), (2/4), (3/4), (4/4) and Display sections
no mark : FM/MW/LW
<
> : CD PLAY
∗
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production
tolerances.
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
J
: CD PLAY
F
: FM
f
: MW/LW
L
: BUS AUDIO
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B)
Pattern face side: Parts on the pattern face side seen from the
(Side B)
pattern face are indicated.
Parts face side:
Parts on the parts face side seen from the
(Side A)
parts face are indicated.
Q
C
These are omitted
E
B
E
These are omitted
C
B
C
These are omitted
B
E
• Waveforms
— SERVO Board —
(CD PLAY)
— MAIN Board —
4-4. CIRCUIT BOARDS LOCATION
MAIN board
SUB board
SENSOR board
SERVO board
DISPLAY board
tuner unit
(TU1)
(TU1)
1
IC2 5 (FEI)
Approx.
1Vp-p
1Vp-p
0 V
0.6 Vp-p
16.9344 MHz
Approx. 100 mVp-p
50 mV/DIV, 5 msec/DIV
0.5 V/DIV, 0.5
µ
sec/DIV
2
IC2 6 (TEI)
200 mV/DIV, 5 msec/DIV
6
IC2 oh (FPI2), oj (FPI1)
0.5 V/DIV, 0.5
µ
sec/DIV
Approx. 400 mVp-p
3
IC2 wd (XI)
0.2 V/DIV, 0.2
µ
sec/DIV
7
IC3 ia (X1)
0.5 V/DIV, 0.2
µ
sec/DIV
1.1 Vp-p
12 MHz
4
IC2 ia (RFI)
0.5 V/DIV, 0.5
µ
sec/DIV
5
IC2 of (FNI2), og (FNI1)
1.5 Vp-p
1.5 Vp-p
0 V
1
IC901 qa (XOUT)
3.0 Vp-p
1 V/div, 50 nsec/div
6.747 kHz
— DISPLAY Board —
11 Vp-p
6
IC620 4 (OUT)
5 V/div, 1
µ
sec/div
2.97
µ
sec
3.2 Vp-p
10 Vp-p
11.2896 MHz
3
IC650 4 (OUT)
4
IC303 9 (XCOUT)
5 V/div, 1
µ
sec/div
2
IC801 ed (MCLKI)
1 V/div, 50 nsec/div
2.7 Vp-p
1 V/div, 10
µ
sec/div
32.768 kHz
2.1 Vp-p
8.664 MHz
1
IC551 0 (XT0)
1 V/DIV, 50 nsec/DIV
3.6 Vp-p
6 MHz
5
IC303 qa (XOUT)
1 V/DIV, 50 nsec/DIV
3
µ
sec
• Abbreviation
CND : Canadian model.
Note:
The components
identified by mark 0 or
dotted line with mark 0
are critical for safety.
Replace only with part
number specified.
The components
identified by mark 0 or
dotted line with mark 0
are critical for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
23
23
CDX-GT700D/GT705DX
CDX-GT700D/GT705DX
1
A
B
C
D
E
F
G
H
2
3
4
5
6
7
8
9
10
11
12
13
14
CNP301
SW3
SW2
1-689-230-
FMA4
FMA6
FMA3
FMA5
TP67
TP68
TP70
TP69
TP47
TP48
TP45
TP46
IC6
R6
R43
R35
C16
C70
C14
C29
C30
C68
C133
C132
R16
R14
R15
C17
C72
R20
R5
R26
R143
Q3
R8
R133
R132
Q21
SW1
C66
C67
C48
C10
R27
R81
C46
R33
R44
R23
R22
R58
R9
R62
R61
R2
R60
C7
R87
R86
R85
R142
R82
R79
R25
R78
R77
R97
R98
R34
FB3
R55
FB2
C56
R24
Q2
IC1
C13
C80
FB4
C18
R12
C71
C55
C54
C31
C24
C15
R30
TP4
TP3
TP5
TP64
FMB3
FMB4
TP11
TP10
TP1
TP6
TP7
TP8
TP9
TP75
TP76
TP77
TP78
TP79
TP80
TP81
TP82
TP83
TP85
TP90
TP89
TP88
TP91
TP92
TP95
TP97
TP99
TP2
FMB5
IC2
TP86
TP87
TP84
TP98
TP14
TP15
TP65
TP61
TP62
TP51
TP71
TP72
TP74
TP63
TP28
TP22
TP21
TP96
TP42
TP44
TP29
TP34
TP35
TP30
TP12
TP24
TP25
TP31
TP13
TP38
TP41
TP49
TP50
TP53
TP32
TP33
TP36
TP37
TP39
TP52
BP60
TP23
TP26
TP27
BP10
R37
R36
R31
R32
R65
C40
C50
C23
R64
C60
R39
R63
X2
R54
C47
R53
R38
C43
R42
R52
C36
R28
CN2
R96
R41
C20
R84
R40
R83
R80
R75
R74
R69
R70
R73
R72
R71
R67
R68
C22
R57
C26
R21
C39
C62
C58
R13
CN1
R11
C11
C12
C53
C52
C49
C45
C44
C42
C41
C33
C32
C25
C19
R1
R18
R19
R29
C51
X1
16
1-866-806-
1-866-806-
R48
R47
R46
R47
R46
R145
IC3
51
75
76
100
1
25
50
26
C69
R88
TP43
1
100
76
75
25
26
50
51
4-5. PRINTED WIRING BOARDS — CD MECHANISM SECTION —
• Refer to page 22 for Circuit Boards Location.
: Uses unleaded solder.
(Page 27)
IC1
G-2
IC2
B-11
IC3
D-2
IC6
D-1
Q2
C-1
Q3
C-2
Q21
B-4
• Semiconductor
Location
Ref. No.
Location
24
24
CDX-GT700D/GT705DX
CDX-GT700D/GT705DX
4-6. SCHEMATIC DIAGRAM — CD MECHANISM SECTION (1/2) —
• Refer to page 22 for Waveforms.
(Page 25)
R14
R15
IC6
R132
R133
C10
TP21
TP22
TP28
TP29
TP30
TP42
TP45
TP46
C39
R41
R40
R39
R38
R27
R25
R26
R24
R23
R22
TP33
TP32
TP37
TP36
R58
TP39
TP38
TP47
TP48
TP41
TP35
TP34
R42
TP50
TP49
TP23
TP24
TP25
TP26
TP27
TP52
TP31
R18
C14
TP51
R57
R55
TP53
IC2
C12
C13
C17
C56
C54
C24
C55
C51
C50
C53
C47
C49
C46
C22
C20
R28
FB2
FB3
C31
C30
R36
R30
C42
C41
C72
C60
C43
C58
R29
R19
C132
C80
C133
C26
C25
C32
C33
R33
R31
R32
R34
C36
TP43
TP44
C29
C23
C40
R37
Q2
Q3
C15
R43
C44
R44
C45
R53
R52
R54
C18
C48
C52
C19
R13
R12
C16
R16
R11
C11
FB4
CN1
X2
Q21
R35
R20
R48
R47
R46
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