Sony ICF-C233 (serv.man2) Service Manual ▷ View online
ICF-C233
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• PRINTED WIRING BOARD
Note on Printed Wiring Board:
•
•
X
: parts extracted from the component side.
•
f
: internal component.
•
b
: Pattern from the side which enables seeing.
• Abbreviation
CND : Canadian model
C&SA: Central and South America model
C&SA: Central and South America model
• Semiconductor
Location
Ref. No.
Location
D2
E-10
D4
E-11
D5
E-11
D101
G-5
D102
G-4
D103
F-5
D104
G-4
D105
G-10
D106
G-6
IC1
G-12
IC101
G-8
Q2
F-12
Q4
F-13
Q5
G-13
Q101
G-5
Q102
F-5
Q103
E-5
Q104
E-6
Q105
G-5
ICF-C233
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• SCHEMATIC DIAGRAM
Note on Schematic Diagram:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
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.
•
S
: B+ Line.
•
H
: adjustment for repair.
• Voltages and waveforms are dc with respect to ground in
service mode.
no mark : FM
(
no mark : FM
(
) : AM
• 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.
F
: FM
f
: AM
• Abbreviation
CND : Canadian model
C&SA: Central and South America model
C&SA: Central and South America model
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.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
A
B
C
D
E
F
G
H
I
J
K
A
B
C
D
E
F
G
H
I
J
K
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