Sony HCD-HDX277WC Service Manual page 33

Q Q
3 7 6 3 1 5 1 5 0
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
For Printed Wiring Boards.
Note:
• 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.
• MAIN board is multi-layer printed board.
However, the patterns of intermediate layers have not
been included in diagrams.
• 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
HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675
For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF) 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
specifi ed.
• : internal component.
f
• 2 : nonfl ammable resistor.
• 5 : fusible resistor.
• C : panel designation.
Note: Note:
The components identi- Les composants identifi és
fi ed by mark 0 or dotted par une marque 0 sont
line with mark 0 are criti- critiques pour la sécurité.
cal for safety. Ne les remplacer que par
Replace only with part une piéce portant le nu-
number specifi ed. méro spécifi é.
• A : B+ Line.
• B : B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : TUNER
( ) : DVD PLAY
• Voltages are taken with VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
: AUDIO
F
: CD/DVD PLAY
J
: TUNER
f
i : AUDIO IN
E : VIDEO
• Abbreviation
AUS : Australian model
E3 : 240V AC area in E model
x a o
y
. i
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HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675
8
• Circuit Boards Location
SERIPARA board
Q Q
3 7 6 3
MOTOR board
PW-SW board
u 1 6 3
.
33 33
2 4
9 9 8
TUNER (FM/AM)
S-AIR INC board
(HDX277WC/HDX279W/HDX576WF)
I/O board
POWER board
SW (2) board
RELAY board
1 5 1 5 0 8 9 2 4
SENSOR board
SW (1) board
ENCODER board
m
c o
2
9 9
S-AIR CON board
(HDX275/HDX475/HDX675)
SPEAKER board
MAIN board
9 8 2 9 9
FL board
JACK-KEY board