Read Sony XM-SD51X / XM-SD61X Service Manual online
9
9
XM-SD51X/SD61X
XM-SD51X/SD61X
• IC Block Diagrams
IC1 SSM2018TP
SECTION 3
DIAGRAMS
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
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)
• 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.
•
A
: B+ Line.
•
B
: B– Line.
• Total current is measured with no-signal condition.
• Power voltage is dc 14.4V and fed with regulated dc power
• 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 con-
dition.
• 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:
• X
: parts extracted from the component side.
•
: Pattern from the side which enables seeing.
(The other layer’s patterns are not indicated.)
Note:
The components identi-
fied by mark
The components identi-
fied by mark
0
or dotted
line with mark
0
are criti-
cal for safety.
Replace only with part
number specified.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
Les composants identifiés par
une marque
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
• Waveform
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B)
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)
(Side A)
parts face are indicated.
3.1 Vp-p
18
µ
sec
1
IC6
5
(CT)
1 V/DIV, 10
µ
sec/DIV
IC6 TL494CN
OSC
REF 5V
ERROR
ERROR
0.1V
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
COMP EN
CT
RT
C1
GND
TIME
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V1
BAL
VG
GND
MODE
VC
V-
COMP3
+I1
1-G
G
V+
IG
-I1
COMP1
+IN
-IN
COMP2
GAIN
CORE
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