Sony CDX-525RF (serv.man2) 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
• 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-525RF
3-2.
PRINTED WIRING BOARDS – RF Section –
• 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 10)
7
7
CDX-525RF
3-3.
SCHEMATIC DIAGRAM – RF Section –
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 8)
8
8
CDX-525RF
3-4.
SCHEMATIC DIAGRAM – MAIN Section (1/2) –
(Page 7)
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