Sony CFD-Z125 - Cd Radio Cassette-corder, Руководство по обслуживанию

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CFD-Z125/Z135
6-5. SCHEMATIC DIAGRAM — MAIN SECTION — • See page 42 for IC Block Diagrams.
— 35 — — 36 — — 37 — — 38 —
3.2Vp-p
9.2Vp-p
10msec/div
1V/div
10msec/div
2V/div
1
2
Q303 Bass (REC mode)
L301
1
,
2
(REC mode)
• Waveforms
Note on Schematic Diagram:
• 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.
•
¢
: internal component.
•
5
: fusible resistor.
•
C
: panel designation.
•
U
: B+ Line.
•
H
: adjustment for repair.
• Power voltage is dc 9 V and fed with regulated dc power
supply from battery terminal.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
(
) : AM
< > : PB
<< >> : REC
∗
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
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
: FM
f
: AM
E
: PB
a
: REC
J
: CD
The components identified by mark ! or dotted
line with mark ! are critical for safety.
Replace only with part number specified.
1 2
A
B
C
D
E
F
G
H
I
J
K
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19