Sony HCD-HDX275 Service Manual page 33

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:
Parts face side: Parts on the parts face side seen from
(Conductor Side) the pattern face are indicated.
Pattern face side: Parts on the pattern 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.
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
HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675
• Circuit Boards Location
SERIPARA board
SENSOR board
SW (1) board
MOTOR board
PW-SW board
ENCODER board
33 33
TUNER (FM/AM)
S-AIR INC board
(HDX277WC/HDX279W/HDX576WF)
I/O board
S-AIR CON board
(HDX275/HDX475/HDX675)
POWER board
SW (2) board
RELAY board
JACK-KEY board
SPEAKER board
MAIN board
FL board