Diagrams - Sony XM-1252GTR Service Manual

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