Sony HCD-LF10 Service Manual page 39

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• 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.
: 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.
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.
• DMB07 board is multi-layer printed board.
However, the patterns of intermediate-layer have not been
included in the diagram.
• Indication of transistor
C
Q
These are omitted.
B
E
HCD-LF10
Note on Schematic Diagram:
• 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
/
W or less unless otherwise
4
specified.
: internal component.
f
• 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 waveforms are dc with respect to ground
under no-signal conditions.
no mark : DVD PLAY
(
) : SACD PLAY
[
] : CD PLAY
: Impossible to measure
• 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.
F
: AUDIO
L : VIDEO
J
: CD PLAY
c : DVD PLAY
I : SACD PLAY
E
: Y
a
: CHROMA
r : COMPONENT VIDEO
• Abbreviation
AUS : Australian model
SP
: Singapore model
TW
: Taiwan model
• Circuit Boards Location
STBY KEY board
DMB07 board
DRIVER board
39
39
D-LED board
EJECT KEY board
TOUCH PAD (A) board
TOUCH KEY board
TOUCH PAD (B) board
RF board
I/O board
DVD POWER board
FAN CONTROL board
DISPLAY board
HCD-LF10

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