Sony STR-DE475 Service Manual - Page 7

Diagrams, This Note Is Common For Printed Wiring - wiring diagram

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SECTION 3 DIAGRAMS STR-DE475 THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this necessary note is printed in each block.) For schematic diagrams. 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 1/4 W or less unless otherwise specified. • % : indicates tolerance. • f : internal component. • 2 : nonflammable resistor. • 1 : fusible resistor. • C : panel designation. For printed wiring boards. Note: • X : parts extracted from the component side. • a : Through hole. • f : internal component. • b : Pattern from the side which enables seeing. C Q These are omitted. BE Note: The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. Note: Les composants identifiés par une marque ! sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié. BCE These are omitted. • A : B+ Line. • B : B- Line. • H : adjustment for repair. • Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. No mark : FM • Voltages are taken with a VOM (Input impedance 10 MΩ). Voltage variations may be noted due to normal production tolerances. • Waveforms are taken with a oscilloscope. • Circled numbers refer to waveforms. • Signal path. F : FM f : CD • Abbreviation CND : Canadian model. AUS : Australian model. AR : Argentine model. CH : Chinese model. MX : Mexican model. • Waveform - MAIN BOARD - 1 IC301 qf 230ns 2.2Vp-p - DISPLAY BOARD - 2 IC102 id 63ns 5.8Vp-p - DIGITAL BOARD - 3 IC1005 7 81ns 5.8Vp-p 7

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7
STR-DE475
SECTION 3
DIAGRAMS
For schematic diagrams.
Note:
•
All capacitors are in
µ
F unless otherwise noted.
pF:
µµ
F
50 WV or less are not indicated except for electrolytics
and tantalums.
•
All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
%
: indicates tolerance.
•
f
: internal component.
•
2
: nonflammable resistor.
•
1
: fusible resistor.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: B
–
Line.
•
H
: adjustment for repair.
•
Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
No mark : FM
•
Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal production
tolerances.
•
Waveforms are taken with a oscilloscope.
•
Circled numbers refer to waveforms.
•
Signal path.
F
: FM
f
: CD
•
Abbreviation
CND
: Canadian model.
AUS
: Australian model.
AR
: Argentine model.
CH
: Chinese model.
MX
: Mexican model.
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this necessary note is printed in each
block.)
Note:
The components identified by
mark
!
or dotted line with mark
!
are critical for safety.
Replace only with part number
specified.
Note:
Les composants identifi
é
s par
une marque
!
sont critiques
pour la s
é
curit
é
.
Ne les remplacer que par une
pi
è
ce portant le num
é
ro sp
é
cifi
é
.
•
Waveform
–
MAIN BOARD
–
–
DISPLAY BOARD
–
–
DIGITAL BOARD
–
For printed wiring boards.
Note:
•
X
: parts extracted from the component side.
•
a
: Through hole.
•
f
: internal component.
•
b
: Pattern from the side which enables seeing.
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
1
IC301
qf
2.2Vp-p
230ns
2
IC102
id
5.8Vp-p
63ns
3
IC1005
7
5.8Vp-p
81ns