HCD-S888
32
32
Note on Schematic Diagram:
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
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
: indicates tolerance.
•
2
: nonflammable resistor.
•
C
: panel designation.
•
A
: B+ Line.
• Voltages and wavefor ms are dc with respect to
groundunder no-signal (detuned) conditions.
no mark : DVD PLAY
(
) : CD PLAY
[
] : SACD PLAY
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
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
6-2.
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
: indicates tolerance.
•
: 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
(Side B)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Side A)
the parts face are indicated.
• Indication of transistor.
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
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 S/W 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
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
Q
• Circuit Boards Location
