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11
11
XM-2002GTW
XM-2002GTW
SECTION 4
DIAGRAMS
IC901 TL594INSR
OSC
REF 5V
ERROR
ERROR
0.1V
Q1
Q2
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
NON
INV
VREF
VCC
C2
E1
E2
OUT
+IN
-IN
COMPEN
CT
RT
C1
GND
TIME
• IC Block Diagram
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. (p: pF)
Note:
• All capacitors are in µF unless otherwise noted. (p: pF)
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.
•
C
: panel designation.
•
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 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
for printed wiring boards:
Note:
Note:
• X
: parts extracted from the component side.
•
: Pattern from the side which enables seeing.
• Waveform
1
IC901
5
1 V/DIV, 5
µ
sec/DIV
3 Vp-p
15
µ
sec
Ref. No.
Location
• Semiconductor Location
D104
F-12
D106
E-11
D107
E-10
D108
E-11
D109
E-10
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
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
Ref. No.
Location
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
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