Read Sony XM-1502SX / XM-1902GX Service Manual online
10
10
• IC Block Diagram
IC901 µPC494GS-T1
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
OSC
REF. REG.
ERROR
ERROR
0.1V
• Waveform
IC901
5
1
1V/DIV, 5µsec/DIV
15µsec
3.4Vp-p
Ver 1.2
Q101
F-4
Q102
E-7
Q103
F-9
Q104
F-9
Q105
E-10
Q106
E-10
Q107
G-11
Q108
C-11
Q109
D-11
(Q110)
E-11
(Q111)
F-11
Q112
F-11
Q113
G-11
Q114
C-12
(Q115)
D-12
Q116
F-12
Q201
G-4
Q202
E-5
Q203
E-3
Q204
E-4
Q205
E-3
Q206
E-3
Q207
G-1
Q208
C-1
Q209
D-1
(Q210)
E-1
(Q211)
E-1
Q212
F-1
Q213
G-1
Q214
D-1
(Q215)
D-1
Q216
F-1
Q801
D-7
Q802
D-7
Q803
B-1
Q804
B-1
Q805
B-1
Q809
A-11
Q810
A-12
Q811
A-11
Q812
B-11
Q813
B-11
Q901
F-10
Q902
F-10
Q903
G-10
Q904
A-8
Q905
A-7
Q906
A-5
Q907
A-6
Q908
A-7
Q909
A-6
Q910
B-2
Q911
B-2
Q912
B-3
D101
E-9
D102
E-9
D103
E-9
D104
E-9
D201
E-4
D202
E-3
D203
E-4
D204
E-4
D301
F-8
D302
G-7
D801
D-7
D802
D-7
D803
B-11
D805
A-11
D807
B-11
D820
C-12
D821
D-12
D824
F-12
D825
G-12
D826
C-1
D827
D-1
D830
F-1
D831
G-1
D901
G-10
D902
G-10
D905
A-4
D906
A-4
D907
A-9
D908
A-8
D909
D-5
D910
D-5
D911
D-6
D912
D-5
D913
B-2
D914
B-2
D915
B-3
D917
D-6
D918
D-5
D919
D-10
D920
D-10
D921
E-3
D922
E-3
IC101
F-6
IC102
F-5
IC103
F-5
IC104
F-3
IC201
F-6
IC202
G-5
IC204
G-3
IC301
F-8
IC901
B-10
IC902
F-9
IC903
A-10
• Semiconductor Location (MAIN SECTION)
Ref. No.
Location
Ref. No.
Location
( ) : XM-1902GX only
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. pF: µµF
Note:
• 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.
•
%
: indicates tolerance.
•
2
: nonflammable resistor.
•
U
: B+ Line.
•
V
: 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 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
• Abbreviation
CND : Canadian model
for printed wiring boards:
Note:
Note:
• X
: parts extracted from the component side.
•
: Pattern from the side which enables seeing.
• Abbreviation
CND : Canadian model
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