Note For Printed Wiring Boards And Schematic Diagrams - Sony HCD-S888 Service Manual

HCD-S888
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.
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.
• f : indicates tolerance.
• 2 : nonflammable resistor.
• C : panel designation.
Note: The components identified by mark 0 or dotted line
with mark 0 are critical for safety.
Replace only with part number specified.
• 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 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
• Circuit Boards Location
not supplied
(POWER S/W board)
DDCON board
not supplied
(POWER LED board)
FL board
not supplied
(ENCODER board)
not supplied
(SW board)
32 32
I/O board
DVD board
not supplied
(SEL board)
CONTROL board
POWER board
HP board
VOL board
not supplied
(CK MOTOR board)
not supplied
(CK SENSOR board)
RELAY board
not supplied
(D SENSOR board)
TUNER board
AMP board
RF board