Read Sony XM-1252GTR Service Manual online
11
11
XM-1252GTR
XM-1252GTR
IC901 TL594INSR
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
OSC
REF. REG.
ERROR
ERROR
0.1V
• IC Block Diagram
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS
AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
for schematic diagram:
Note:
• All capacitors are in µF unless otherwise noted. (p: pF)
Note:
• All capacitors are in µF unless otherwise noted. (p: pF)
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.
•
%
: indicates tolerance.
•
2
: nonflammable resistor.
•
C
: panel designation.
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
piéce portant le numéro
spécifié.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
•
A
: B+ Line.
•
B
: B– Line.
•
H
: adjustment for repair.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from +12V and REM terminals.
• Voltage and waveform are dc with respect to ground
under no-signal condition.
• 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.
F
: AUDIO
for printed wiring boards:
Note:
Note:
• X
: parts extracted from the component side.
•
: Pattern from the side which enables seeing.
SECTION 4
DIAGRAMS
• Waveform
1 V/DIV, 5
µ
sec/DIV
1
IC901
5
1.8 Vp-p
20
µ
sec
• Semiconductor Location (AMP BOARD)
Ref. No.
Location
Ref. No.
Location
D1
D-13
D2
D-13
D3
D-13
D5
E-11
D6
E-11
D104
E-8
D106
E-9
D107
E-9
D108
E-9
D109
E-9
D204
C-7
D206
C-6
D207
C-6
D208
C-7
D209
C-7
D301
H-7
D302
H-7
D303
G-8
D304
G-8
D701
F-6
D702
F-6
D703
F-6
D801
C-6
D802
C-6
D803
F-5
D820
F-4
D822
B-9
D827
B-9
D832
B-9
D901
H-5
D902
H-4
D905
D-2
D906
D-2
D909
D-5
D910
D-5
D911
E-5
D912
E-4
D913
E-5
D914
E-5
D917
E-5
D918
E-4
D919
D-6
D920
D-6
D921
H-10
D922
H-10
IC101
G-9
IC102
H-9
IC301
H-7
IC302
H-8
IC303
G-8
IC901
G-5
IC902
H-5
Q101
H-7
Q102
E-8
Q103
E-8
Q104
E-8
Q105
E-7
Q106
E-8
Q107
E-9
Q108
D-9
Q109
E-9
Q110
D-9
Q111
F-9
Q114
F-8
Q201
G-8
Q202
E-7
Q203
D-7
Q204
D-8
Q205
C-7
Q206
C-8
Q207
B-7
Q208
B-6
Q209
B-7
Q210
B-6
Q211
B-8
Q214
C-6
Q701
F-6
Q702
F-6
Q801
C-6
Q802
C-8
Q803
B-9
Q804
B-8
Q805
G-6
Q806
G-5
Q901
H-5
Q902
H-5
Q903
H-5
Q904
E-2
Q906
F-2
Q907
G-2
Q909
G-2
Q910
F-5
Q911
F-5
Q912
E-5
Q913
F-5
Q914
D-6
Q915
E-6
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