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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.
•
x
: parts mounted on the conductor side.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Indication of transistor
C
Q
These are omitted.
B
E
Q
B
C E
These are omitted.
HCD-DF1
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.
• 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 (detuned) conditions.
no mark : TUNER (FM/AM)
(
) : DVD PLAY
[
] : TAPE PLAY
〈〈
〉〉 : REC
∗
: 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
E
: Y
a
: CHROMA
r : COMPONENT VIDEO
J
: DIGITAL OUT
f
: TUNER (FM/AM)
d
: TAPE PLAY
G
: REC
N
: MIC INPUT
• Abbreviation
AUS : Australian model
HK
: Hong Kong model
KR
: Korean model
RU
: Russian model
SP
: Singapore model
TW
: Taiwan model
• Circuit Boards Location
POWER SWITCH board
MICROPHONE board
PANEL board
15
15
MAIN board
TUNER (FM/AM)
DECK board
POWER board
HCD-DF1
DVD board
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