Diagrams; Note For Printed Wiring Board And Schematic Diagram; Waveform; Ic Block Diagram - Sony XM-2100GTX Service Manual

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3-1. NOTE FOR PRINTED WIRING BOARD AND
SCHEMATIC DIAGRAM
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. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and 1 / W or less unless otherwise
4
specified.
• % : indicates tolerance.
• 2 : nonflammable resistor.
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 por tant le numéro
number specified. spécifié.
• A : B+ Line.
• B : B– Line.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from +12V and REM terminals.
• Voltage is 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. T E
L 1 3 9 4 2 2 9 6 5 1 3
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.
(The other layer's patterns are not indicated.)
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B) pattern face are indicated.
Parts face side: Parts on the parts face side seen from the
(Side A) parts face are indicated.
w w w
.
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SECTION 3

DIAGRAMS

3-2. WAVEFORM

— Main Board —
1V/DIV, 5µsec/DIV
1
2.8Vp-p
20µsec
IC902
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3-3. IC BLOCK DIAGRAM

IC902 µPC494GS (Main Board)
16 15 14 13 12 11 10 9
ERROR
REF.REG.
ERROR 0.1V
OSC
1 2 3 4 5 6 7 8
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3 7 6 3 1 5 1
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.
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2 4 2
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• Semiconductor Location
(Main Board)
Ref. No. Location Ref. No.
D101 E-4 Q115
D102 E-4 Q116
D201 E-5 Q201
D202 E-5 Q202
D301 G-5 Q203
D302 G-5 Q204
D303 B-12 Q205
D304 C-12 Q206
D305 F-6 Q207
D306 F-6 Q208
D901 G-10 Q209
D902 F-9 Q210
D903 D-6 Q211
D904 F-9 Q212
D905 B-12 Q213
Q214
IC301 H-3 Q215
IC302 I-6 Q216
IC303 H-6 Q301
IC304 G-7 Q302
IC901 F-7 Q303
IC902 E-9 Q304
Q305
LED901 F-7 Q306
Q307
Q101 I-7 Q901
Q102 G-4 Q902
Q103 E-4 Q903
Q104 E-4 Q904
Q105 D-4 Q905
Q106 D-4 Q906
Q107 D-2 Q907
Q108 D-3 Q908
5 0 8 9 Q109 2 4 B-4 9 8 Q909 2
Q110 B-3 Q910
Q111 B-3 Q911
Q112 C-3 Q912
Q113 E-3 Q913
Q114 F-3
m
XM-2100GTX
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Location
C-3
E-3
H-7
G-5
E-5
E-5
D-6
D-5
B-7
B-7
B-5
B-4
B-9
B-8
B-7
B-5
B-9
B-6
F-5
F-5
F-6
F-6
E-8
D-8
H-4
G-10
G-10
G-10
F-9
D-9
E-9
F-7
E-12
9 E-11 9
F-12
D-12
E-12
D-12