Sony HCD-S550 - Note for Printed Wiring Boards and Schematic Diagrams

HCD-S550/S880
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7-6. 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.
•
f
: internal component.
• : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Indication of transistor.
C
B
These are omitted.
E
Q
B
These are omitted.
CE
Q
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
/
4
W or less unless otherwise
specified.
•
f
: internal component.
• 2 : nonflammable resistor.
• C : panel designation.
• 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
CH : Chinese model
CIS : Rissian model
EA : Saudi Arabia model
HK : Hong Kong model
KR : Korean model
MX : Mexican model
MY : Malaysia model
SP : Singapore model
TW : Taiwan model
• Circuit Boards Location
Note:
The components identi-
fied by mark 0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro
spécifié.
FL board
DDCON board
control board
vol board
HP board
DVD board
power board
AMP board
tuner board
not supplied
(SEL board)
I/O board
not supplied
(power SW board)
not supplied
(power LED board)
not supplied
(CK motor board)
not supplied
(CK sensor board)
not supplied
(D sensor board)
not supplied
(SW board)
not supplied
(encoder board)
relay board
RF board
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.