Note For Printed Wiring Boards And Schematic Diagrams - Sony HCD-S550 Service Manual

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.
• : 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.
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
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
not supplied
(power SW board)
DDCON board
not supplied
(power LED board)
FL board
control board
not supplied
(encoder board)
not supplied
(SW board)
33 33
I/O board
DVD board
not supplied
(SEL board)
tuner board
power board
HP board
vol board
not supplied
(CK motor board)
not supplied
(CK sensor board)
relay board
not supplied
(D sensor board)
HCD-S550/S880
AMP board
RF board