Note For Printed Wiring Boards And Schematic Diagrams - Sony HCD-C770 Service Manual
Sacd/dvd receiver
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Also See for HCD-C770:
- Operating instructions manual (88 pages) ,
- Service manual (142 pages)
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Q Q
3 7 6 3 1 5 1 5 0
6-6.
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Printed Wiring Board:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
: internal component.
f
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side) the parts face are indicated.
• Indication of transistor.
C
Q
These are omitted.
B
E
Q
B
C E
These are omitted.
T E
L
1 3 9 4 2 2 9 6 5 1 3
w w w
.
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Note on Schematic Diagram:
• 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
/
W or less unless otherwise
4
specified.
•
: internal component.
f
• 2 : nonflammable resistor.
• C : panel designation.
Note:
Note:
Les composants identifiés par
The components identi-
fied by mark 0 or dotted
une marque 0 sont critiques
line with mark 0 are criti-
pour la sécurité.
Ne les remplacer que par une
cal for safety.
Replace only with part
pièce por tant le numéro
number specified.
spécifié.
• A : B+ Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : DVD PLAY
(
) : CD PLAY
[
] : SACD PLAY
• 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.
J
: CD PLAY
c : DVD PLAY
I : SACD PLAY
f
: AUX IN
i : OPTICAL DEITAL IN
d
: TUNER
F
: AUDIO
L : VIDEO
E
: Y
a
: CHROMA
r : COMPONENT VIDEO
• Abbreviation
AUS : Australian model
CND : Canadian model
x
a o
u 1 6 3
y
i
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8
9
• Circuit Boards Location
power SW board
key board
not supplied
(power LED board)
FL board
Q
Q
3
7
6
3
1
5
1
SW (3) board
SW (2) board
SW (1) board
not supplied
(sensor board)
c o
.
35
35
2
4
2
9
8
video board
DDCON board
SEL board
audio board
control board
DVD board
vol board
HP board
5
0
8
9
2
4
9
8
not supplied
(roller motor board)
stocker motor board
SW (4) board
relay board
m
not supplied
(mode motor board)
HCD-C770/C990
9
9
AMP board
power board
2
9
9
RF board
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