Sony CDX-727 (serv.man3) Service Manual ▷ View online
5
5
3.
DIAGRAMS
3-1.
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Printed Wiring Board:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
•
z
: Through hole.
• b
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side)
the parts face are indicated.
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
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.
•
U
: B+ Line.
•
H
: adjustment for repair.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from CD changer controller.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : CD PLAY
no mark : CD PLAY
∗
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
• Signal path.
J
: CD PLAY
Note:
The components identi-
fied by mark
The components identi-
fied by mark
0
or dotted
line with mark
0
are criti-
cal for safety.
Replace only with part
number specified.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
Les composants identifiés par
une marque
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro
spécifié.
Ne les remplacer que par une
pièce portant le numéro
spécifié.
6
6
CDX-727
3-2.
PRINTED WIRING BOARDS – RF/SW Boards –
• Semiconductor
Location
Ref. No.
Location
IC11
D-7
IC51
B-9
IC52
H-4
Q11
E-8
C52
C60
C59
R62
R63
C55
R57
R58
R65
R56
C54
R61
C21
R30
R64
C31
C38
C34
R40
C26
C39
C12
C19
C18
C10
CNP53
C56
C58
C57
IC52
1-676-014-
11
(11)
RF BOARD
(COMPONENT SIDE)
R51
R53
C51
R52
R54
R31
R60
R32
RV14
C22
C24
R39
C28
R37
C25
R34
C29
R41
C35
R47
R42
R43
R45
C37
R46
C36
R44
IC11
C43
C17
C16
C14
R25
R18
R26
C15
R17
R59
C53
R50
C42
C41
R55
R49
R27
C32
C30
C27
C33
R38
R36
R35
R48
R14
R11
R22
R16
C40
R28
C23
R33
R12
R13
B C E
C13
CNJ11
Q11
1-676-014-
11
(11)
RF BOARD
(CONDUCTOR SIDE)
IC51
CNJ12
SW1
(LIMIT)
SW BOARD
1-664-104-
11
(11)
M101
(SPINDLE)
A
MAIN
BOARD
OPTICAL PICK-UP
BLOCK
(KSS-521A)
OP FLEXIBLE BOARD
1-664-626-
11
SW11
CHUCKING END
DETECT
SW12
SAVE END
DETECT
1
2
3
4
5
6
7
8
9
10
11
A
B
C
D
E
F
G
H
I
J
+
1
2
BLU
YEL
YEL
BLU
+
+
+
+
8
5
1
4
17
1
+
39
27
40
52
1
13
14
26
1
26
14
8
7
1
28
22
21
15
M
MAIN FLEXIBLE BOARD
1-679-339-
11
BP12 (FE)
TP
(VC)
TP
(FE0)
BP11 (TE)
TP (TE1)
TP
(RF)
TP (GND)
05
(Page 8)
7
7
CDX-727
3-3.
SCHEMATIC DIAGRAM – RF/SW Boards –
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
Les composants identifiés par une marque
0
sont
critiques pour la sécurité.
Ne les remplacer que
par une pièce portant le numéro spécifié.
(Page 10)
8
8
CDX-727
3-4.
PRINTED WIRING BOARDS – MAIN Board (Component Side) –
• Semiconductor
Location
Ref. No.
Location
D301
F-3
D302
F-3
D303
F-3
D304
F-3
D305
F-3
D306
F-7
D307
H-4
D308
H-4
D311
G-4
D314
G-4
D315
E-2
D316
D-2
D317
D-2
D318
D-2
D320
F-2
D501
G-7
D601
C-5
D602
C-5
IC101
C-8
IC201
E-8
IC202
E-9
IC301
H-4
IC302
F-4
IC304
H-5
IC401
D-6
IC402
F-5
IC403
A-6
IC501
H-7
IC502
H-6
IC503
H-7
IC601
B-5
Q201
F-9
Q301
I-5
Q302
I-4
Q303
E-2
Q306
E-1
Q308
F-2
Q601
E-4
Q602
E-4
Q610
D-4
Q620
D-4
R307
R308
R306
C311
C321
K
A
K
A
K
A
K
A
D315
D316
D317
D318
E
C
B
Q306
Q303
C315
R320
R321
Q308
1
2
R301
C305
D304
A
K
D303
K
A
D302
D301
D305
C304
C303
1
7
8
14
D311
D314
C301
C302
IC302
1
4
5
8
IC301
C320
R316
R312
R309
B C E
Q302
R302
B C E
Q301
C306
R303
K
A
D307
K
A
D308
IC304
R311
C308
C307
R304
R212
R211
1
10
11
20
IC402
1
13
R622
R630
R612
E C B
Q602
E C B
Q601
C621
R621
R620
C642
E C B
Q620
Q610
B C E
C611
R611
R610
C608
C603
C606
R404
R405
R406
AK
D601
AK
D602
R318
C602
R601
FB601
R403
R602
1
12
13
24
IC601
R114
C405
C404
1
19
20
32
33
51
52
64
R402
C403
C402
1
4
5
8
IC403
R402
C403
C106
R110
R108
R109
C107
R107
C105
R106
C104
C109
C103
R105
R104
R102
C102
R103
R101
C101
C112
C108
C206
R111
C113
C114
1
30
31
50
51
80
100
C115
R314
1
24
25
40
41
64
80
65
1
4
5
8
IC202
R206
R208
R205
C204
R204
R203
R202
Q201
C501
C503
IC503
C504
R504
C502
R502
R501
X501
1
20
21
40
41
60
80
1
14
15
28
IC502
IC501
R207
C202
R213
R219
R505
D306
K
A
D501
C201
IC401
C205
R221
C203
C401
K
A
D320
61
MAIN BOARD
(COMPONENT SIDE)
M
M104
(ELEVATOR)
B
JACK
BOARD
CNJ901
05
1-674-306-
12
(12)
1
2
3
4
5
6
7
8
9
10
11
A
B
C
D
E
F
G
H
I
J
C1/B2 C2
E1
B1
E2
C1/B2 C2
E1
B1
E2
BLU
RED
A
K K
A
A
K
K
K
A
K
A
3
1
2
IC101
81
K
A
A
4
5
1
3
C1/B2
C2
E1
B1
E2
B1
E2
IC201
BP201
(SINGLE)
1
26
A
RF BOARD
CNJ12
MAIN FLEXIBLE BOARD
1-679-339-
11
JACK FLEXIBLE BOARD
1-676-340-
11
(Page 6)
(Page 12)
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