Sony HCD-TB10, Руководство по обслуживанию

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20
HCD-TB10
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
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
: 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
TW : Taiwan 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
• Waveforms
2
IC601
qd
(XT2)
1
IC751
rf
(XOUT)
2 V/DIV, 10 s/DIV
2 V/DIV, 20 ns/DIV
3
IC601
qh
(CF2)
2 V/DIV, 40 ns/DIV
5
Q209 Collector
(TAPE REC mode)
4
IC102
ws
(XOUT)
2 V/DIV, 100 ns/DIV
6
IC103
qf
(XO)
1 V/DIV, 100 ns/DIV
5 V/DIV, 10 s/DIV
4.9 Vp-p
5.9 Vp-p
59 ns
30.5 s
4.5 Vp-p
100 ns
222 ns
5.0 Vp-p
231 ns
13.9 Vp-p
12.6 s
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