Sony HCD-BC150 - Dvd Home Theater System, Руководство по обслуживанию

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HCD-BC150/BC250
HCD-BC150/BC250
SECTION 5
DIAGRAMS
• Circuit Boards Location
For Schematic Diagrams.
Note:
• All capacitors are in
µ
F 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
specified.
• f : internal component.
• C : panel designation.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
• A : B+ Line.
• B : B– Line.
• Voltages and waveforms are dc with respect to ground un-
der no-signal (detuned) conditions.
• Voltages and waveforms are dc with respect to ground in
service mode.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
no mark : FM
• Circled numbers refer to waveforms.
• Signal path.
F
: AUDIO
J
: CD PLAY
c : DVD PLAY
d : TUNER
L : VIDEO
E
: Y
r
: COMPONENT VIDEO
q : R, G, B
e : AUX IN
• Abbreviation
CND : Canadian model
For Printed Wiring Boards.
Note:
•
X : parts extracted from the component side.
• a : Through hole.
• : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Indication of transistor.
C E B
These are omitted
Q
C
E B
These are omitted
Caution:
Pattern face side: Parts on the pattern face side seen from
(SIDE A) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(SIDE B) the parts face are indicated.
H/P board
PANEL board
FL board
POWER SW board
TUNER board
IO board
ENCODER board
SENSOR board
MOTOR board
SW(1) board
SW(2) board
RELAY board
SPK board
MAIN board
AMP board
DMB09 board
SWITCHING REGULATOR
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
piéce portant le numéro
spécifié.