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Diagrams - Sony XM-1252GTR Service Manual

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THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS
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)
50 WV or less are not indicated except for electrolytics
and tantalums.
1
• All resistors are in Ω and
/
W or less unless otherwise
4
specified.
%
: indicates tolerance.
• 2 : nonflammable resistor.
• C : panel designation.
Note:
Note:
Les composants identifiés par
The components identi-
fied by mark 0 or dotted
une marque 0 sont critiques
line with mark 0 are criti-
pour la sécurité.
cal for safety.
Ne les remplacer que par une
Replace only with part
piéce portant le numéro
number specified.
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 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: AUDIO
for printed wiring boards:
Note:
• X : parts extracted from the component side.
: Pattern from the side which enables seeing.
• IC Block Diagram
IC901 TL594INSR
16
15
14
13
12
11
10
9
REF. REG.
ERROR
0.1V
OSC
ERROR
1
2
3
4
5
6
7 8
XM-1252GTR
SECTION 4

DIAGRAMS

• Semiconductor Location (AMP BOARD)
Ref. No.
Location
Ref. No.
Location
D1
D-13
IC303
G-8
D2
D-13
IC901
G-5
D3
D-13
IC902
H-5
D5
E-11
D6
E-11
Q101
H-7
D104
E-8
Q102
E-8
D106
E-9
Q103
E-8
D107
E-9
Q104
E-8
D108
E-9
Q105
E-7
D109
E-9
Q106
E-8
D204
C-7
Q107
E-9
D206
C-6
Q108
D-9
D207
C-6
Q109
E-9
D208
C-7
Q110
D-9
D209
C-7
Q111
F-9
D301
H-7
Q114
F-8
D302
H-7
Q201
G-8
D303
G-8
Q202
E-7
D304
G-8
Q203
D-7
D701
F-6
Q204
D-8
D702
F-6
Q205
C-7
D703
F-6
Q206
C-8
D801
C-6
Q207
B-7
D802
C-6
Q208
B-6
D803
F-5
Q209
B-7
D820
F-4
Q210
B-6
D822
B-9
Q211
B-8
D827
B-9
Q214
C-6
D832
B-9
Q701
F-6
D901
H-5
Q702
F-6
D902
H-4
Q801
C-6
D905
D-2
Q802
C-8
D906
D-2
Q803
B-9
D909
D-5
Q804
B-8
D910
D-5
Q805
G-6
D911
E-5
Q806
G-5
D912
E-4
Q901
H-5
D913
E-5
Q902
H-5
D914
E-5
Q903
H-5
D917
E-5
Q904
E-2
D918
E-4
Q906
F-2
D919
D-6
Q907
G-2
D920
D-6
Q909
G-2
D921
H-10
Q910
F-5
D922
H-10
Q911
F-5
Q912
E-5
IC101
G-9
Q913
F-5
IC102
H-9
Q914
D-6
IC301
H-7
Q915
E-6
IC302
H-8
• Waveform
1
IC901 5
1.8 Vp-p
20 µ sec
1 V/DIV, 5 µ sec/DIV
11
11
XM-1252GTR

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