Read Sony HCD-TB10 Service Manual online
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.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
For schematic diagrams.
Note:
• All capacitors are in
• All capacitors are in
µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
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.
• 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.
•
• 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.
• B : B– Line.
• H : adjustment for repair.
• Voltages and waveforms are dc with respect to ground
• 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.
tion tolerances.
•
∗
: Impossible to measure
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
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.
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)
(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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