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28
HCD-TB20
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
For schematic diagrams.
Note:
• 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
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
2
: nonflammable resistor.
•
1
: fusible resistor.
•
C
: panel designation.
For printed wiring boards.
Note:
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
a
: Through hole.
•
: Pattern from the side which enables seeing.
•
A
: B+ Line.
•
B
: B– Line.
•
H
: adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
•
∗
: Impossible to measure
• 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
: FM
E
: PB
a
: REC
J
: CD (Analog)
c
: CD (Digital)
• Abbreviation
MX
: Mexican model
KR
: Korea model
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
• Indication of transistor
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
B
These are omitted.
C
E
Содержание hcd-tb20
Страница 20: ...20 HCD TB20 3 19 IN OUT SW Board 2 two screws BTTP M2 6 3 IN OUT SW board 1 connector CN704 ...
Страница 38: ...38 38 HCD TB20 7 9 Schematic Diagram MAIN Section 3 3 Page 48 Page 34 Page 32 47p 47p 47p ...
Страница 40: ...40 40 HCD TB20 7 11 Schematic Diagram DECK Section TAPE DECK Page 36 22k 22k 1k See page 50 for Waveforms ...
Страница 42: ...42 42 HCD TB20 7 13 Schematic Diagram AMP Section Page 36 Page 36 Page 44 Page 46 c E MX E MX ...
Страница 48: ...48 48 HCD TB20 7 19 Schematic Diagram POWER Section I Page 38 Page 46 Page 46 ...
Страница 71: ...71 HCD TB20 MEMO ...