Sony ICF-SW7600GR Service Manual ▷ View online
11
11
ICF-SW7600GR
4-3. PRINTED WIRING BOARD – MAIN BOARD (COMPONENT SIDE) –
15
16
A
B
C
D
E
F
G
H
I
17
18
19
20
21
22
23
24
25
26
27
28
MAIN BOARD
(COMPONENT SIDE)
1-679-368-
11
(11)
B
TO
KEY BOARD
US
Note on Printed Wiring Boards:
• X : parts extracted from the component side.
•
• X : parts extracted from the component side.
•
a
: Through hole.
•
: 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.
12
12
ICF-SW7600GR
4-4. SCHEMATIC DIAGRAM – MAIN BOARD (1/2) –
Note on Schematic Diagram:
• All capacitors are in
• 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.
• C : panel designation.
• A : B+ Line.
• H : adjustment for repair.
• Voltages and waveforms are dc with respect to ground
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• Voltages are taken with a VOM (Input impedance 10 M
Ω).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Voltage variations may be noted due to normal produc-
tion tolerances.
• Signal path.
F
: FM
L
: MW/LW
h
: SW
• Abbreviation
CH
: Chinese model
13
13
ICF-SW7600GR
4-5. SCHEMATIC DIAGRAM – MAIN BOARD (2/2) –
• Refer to page 16 for IC Block Diagrams.
Note on Schematic Diagram:
• All capacitors are in
• 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.
•
¢
: internal component.
• C : panel designation.
• A : B+ Line.
• H : adjustment for repair.
• Voltages and waveforms are dc with respect to ground
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• Voltages are taken with a VOM (Input impedance 10 M
Ω).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Voltage variations may be noted due to normal produc-
tion tolerances.
• Signal path.
F
: FM
L
: MW/LW
h
: SW
• Abbreviation
CH
: Chinese model
EA
: Saudi Arabia model
IC B/D
IC B/D
IC B/D
IC B/D
14
14
ICF-SW7600GR
4-6. PRINTED WIRING BOARD – KEY BOARD –
Note on Printed Wiring Boards:
• X : parts extracted from the component side.
•
• X : parts extracted from the component side.
•
a
: Through hole.
•
: 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.
• Semiconductor
Location
Ref. No.
Location
D301
B-6
D302
F-10
D303
F-10
D304
F-10
D305
E-6
D306
E-9
D308
E-4
IC301
E-9
IC302
D-10
IC303
E-5
IC304
F-6
IC305
E-6
Q301
B-6
Q302
E-4
Q303
E-4
Q304
D-4
Q305
D-4
Q306
E-3
1
2
A
B
C
D
E
F
3
4
5
6
7
8
9
10
11
12
13
14
IC303
IC304
IC305
IC301
IC302
A
TO
MAIN BOARD
KEY BOARD
(CONDUCTOR SIDE)
1-679-367-
11
(11)
A
K
3
2
4
17
18
1
2
CN301
D301
(BACK LIGHT)
C
B
E
E
B
E
B
C
E
B
C
C
G
G
S
S
D
D
A
K
ON
OFF
S329
HOLD.
S312
LIGHT
S308
SLEEP
S304
POWER
S303
3
S302
2
S301
1
S307
6
S306
5
S305
4
S311
9
S310
8
S326
SCAN
S320
PAGE
S327
AM BAND
S325
ERASE
S328
ENTER
S318
S316
FM/AM
S309
7
S315
EXE
S314
0
S323
S319
S313
DIRECT
S317
S322
S321
a
b
STANDBY MEMORY
KEY BOARD
(COMPONENT SIDE)
1-679-367-
11
(11)
LCD1
LIQUID CRYSTAL
DISPLAY PANEL
X301
C331
C333
CN382
29
28
15
14
1
56
43
42
1
4
5
8
A
A
A
A
K
K
K
K
1
3
2
4
1
4
3
5
1
B
TO
MAIN BOARD
US
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