Sony XR-C7500R / XR-C7500RX Service Manual ▷ View online
21
21
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 ACC and BATT cords.
• 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
: MW/LW
L
: BUS AUDIO IN
E
: TAPE PLAY
• Please refer to servicing notes (page 2) for system of
TYPE A, B and C.
Note on Printed Wiring Board:
•
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
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.
7-5.
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
22
22
XR-C7500R/C7500RX
7-6.
PRINTED WIRING BOARD – MAIN Board (Component Side) –
Ref. No.
Location
Ref. No.
Location
• Semiconductor Location
(Component Side)
D20
G-10
D70
I-13
D201
H-2
D500
G-2
D501
D-3
D502
G-3
D506
E-3
D507
E-3
D520
B-1
D522
A-1
D551
I-1
D580
K-6
D582
J-12
D584
J-11
D585
K-11
D586
J-12
D588
K-12
D591
K-3
D592
K-4
D601
G-4
D661
G-5
D662
G-5
D700
B-9
D704
F-4
D705
F-4
D706
B-9
D707
B-9
D709
E-5
D711
B-7
D712
B-7
D713
B-6
D714
B-6
D715
C-6
D716
C-6
D717
C-6
D718
C-6
IC10
F-11
IC50
J-10
IC90
J-13
IC100
F-8
IC130
F-6
IC201
H-2
IC250
H-11
IC500
F-3
IC560
J-3
IC600
I-5
IC800
I-8
IC801
J-7
Q20
F-10
Q21
E-13
Q22
F-13
Q50
J-11
Q70
I-13
Q130
E-7
Q202
G-3
Q205
G-3
Q311
B-10
Q312
C-9
Q331
B-10
Q332
D-8
Q406
K-5
Q407
K-6
Q411
C-9
Q412
C-9
Q431
B-10
Q432
D-8
Q500
G-3
Q501
G-3
Q502
E-3
Q503
F-4
Q581
K-2
Q583
K-3
Q600
G-4
Q601
H-4
Q700
B-9
Q701
D-8
Q704
D-6
Q705
D-6
Q710
E-4
Q711
F-5
Q720
E-4
Q721
F-4
23
23
XR-C7500R/C7500RX
1
9
WHT/BLK
WHT
GRN/BLK
GRN
VIO/BLK
VIO
GRY/BLK
GRY
LIGHT BLU
BLU/WHT
ORG/WHT
BLU
RED
YEL
BLK
FRONT LCH (–)
FRONT LCH (+)
REAR LCH (–)
REAR LCH (+)
REAR RCH (–)
REAR RCH (+)
FRONT RCH (–)
FRONT RCH (+)
ATT
AMP REM
ILL IN
ANT REM
ACC
BATT
GND
(C7500RX: E)
2
10
3
11
4
12
5
13
6
14
7
15
8
16
1
9
WHT/BLK
GRN/BLK
VIO/BLK
GRY/BLK
LIGHT BLU
BLU/WHT
ORG/WHT
YEL
WHT
GRN
VIO
GRY
BLU
RED
BLK
2
10
3
11
4
12
5
13
6
14
7
15
8
16
RL+
RL–
GRN/BLK
WHT/BLK
GRY/BLK
VIO/BLK
GRN
WHT
GRY
VIO
FL+
FL–
FR+
FR–
RR+
RR–
ACC
GND
BLK
ORG/WHT
YEL
RED
BLU
ANT REM
ILL
NC
BATT
NC
NC
ATT
AMP REM
(EXCEPT C7500RX: E)
TO
CN700
7-7.
PRINTED WIRING BOARD – MAIN Board (Conductor Side) –
D52
I-13
D170
F-2
D202
G-3
D503
E-3
D504
D-3
D505
D-3
D508
G-4
D521
B-1
D530
E-1
D553
I-2
D554
I-2
D555
I-2
D581
K-11
D583
J-11
D587
J-12
D589
J-12
D590
J-2
D593
J-11
D594
K-11
D595
K-11
D702
F-3
D703
F-3
D708
D-8
D722
C-6
D723
C-6
D724
D-5
D725
D-4
D730
D-2
D800
J-7
D801
J-7
IC41
C-12
IC170
F-2
IC300
C-10
IC301
E-9
IC400
C-11
IC401
D-11
IC530
E-2
IC550
H-1
IC570
J-3
IC700
B-7
Q11
H-13
Q81
J-13
Q82
I-13
Q203
H-3
Q204
H-3
Q580
K-8
Q582
K-2
Q640
F-5
Q660
F-4
• Semiconductor
Location
(Conductor Side)
(Conductor Side)
Ref. No.
Location
(Page 28)
24
24
XR-C7500R/C7500RX
7-8.
SCHEMATIC DIAGRAM – MAIN Board (1/4) –
•
See page 29 for Waveforms.
•
See page 32 for IC Block Diagrams.
(Page 26)
(Page 25)
(Page 27)
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