Diagrams - Sony XM-2002GTW 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: The components identified by mark 0 or dotted line
with mark 0 are critical for safety.
Replace only with part number specified.
• 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.
XM-2002GTW
SECTION 4

DIAGRAMS

• IC Block Diagram
IC901 TL594INSR
16 15 14 13 12 11 10
ERROR REF 5V
Q2
OSC
ERROR
0.1V
1 2 3 4 5 6 7 8
• Waveform
1
IC901 5
9
15 µ sec
Q1
1 V/DIV, 5 µ sec/DIV
11 11
• Semiconductor Location
Ref. No. Location
D104 F-12
D106 E-11
D107 E-10
D108 E-11
D109 E-10
3 Vp-p
D204 B-9
D206 C-9
D207 C-9
D208 D-9
D209 C-9
D701 F-9
D702 F-9
D703 F-9
D801 D-9
D802 D-9
D803 F-9
D820 F-6
D822 E-10
D827 B-13
D832 B-13
D850 F-13
D851 G-13
D852 D-13
D853 D-13
D854 G-13
D901 G-6
D902 G-6
D905 B-2
D906 C-2
D909 D-5
D910 D-5
D911 E-6
D912 E-5
D913 E-6
D914 E-6
D915 C-7
D917 E-5
D918 E-6
D919 D-7
D920 D-7
D921 I-12
D922 I-13
IC101 H-11
IC102 G-10
IC202 H-9
IC301 G-8
IC302 H-7
IC901 F-7
IC902 F-9
IC903 C-7
XM-2002GTW
Ref. No. Location
Q101 G-9
Q102 F-10
Q103 F-10
Q104 F-10
Q105 F-10
Q106 F-11
Q107 F-12
Q108 E-12
Q109 F-12
Q110 D-12
Q111 F-12
Q112 D-12
Q113 G-12
Q114 E-11
Q201 H-9
Q202 F-9
Q203 D-10
Q204 D-10
Q205 D-10
Q206 D-10
Q207 B-9
Q208 B-9
Q209 B-9
Q210 B-8
Q211 B-10
Q212 B-7
Q213 B-11
Q214 C-9
Q701 F-9
Q702 F-9
Q801 D-9
Q802 C-12
Q803 C-12
Q804 B-12
Q805 E-9
Q806 D-9
Q901 F-6
Q902 G-6
Q903 H-5
Q904 D-2
Q905 D-2
Q906 E-2
Q907 G-2
Q908 F-2
Q909 F-2
Q910 E-5
Q911 E-5
Q912 E-5
Q913 E-4
Q914 D-6
Q915 E-6
Q920 C-7