Sony CFD-S33 - Cd Boombox, Service Manual

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1
2
3
VOLT/DIV : 0.2 V AC
TIME/DIV : 10
µ
sec
VOLT/DIV : 1 V AC
TIME/DIV : 0.1
µ
sec
VOLT/DIV : 1 V AC
TIME/DIV : 20
µ
sec
r
Waveforms
IC3
1
(X OUT)
IC801 &™
(XTAL)
IC801
#º
(TX)
1.1 Vp-p
75 kHz
3.6 Vp-p
4.19 MHz
4.4 Vp-p
32.768 kHz
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.
Note:
Note:
The components identi- Les composants identifiés
fied by mark ! or dotted par une marque ! sont cri-
line with mark ! are cri- tiques pour la sécurité.
tical for safety. Ne les remplacer que par
Replace only with part une piéce portant le
number specified. numéro spécifié.
• U : B+ Line.
• Power voltage is dc 9 V and fed with regulated dc power
supply from external power voltage jack.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM (Radio Section) PLAY (Tape Section)
(
) : AM (Radio Section) REC (Tape Section)
• Voltages and currents are taken with a VOM (Input im-
pedance 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
E : PB (L-CH)
d : PB (R-CH)
a : REC (L-CH)
G : REC (R-CH)
• Abbreviation
CND : Canadian
IT
: Italian
SP : Singapore
C&SA : Central and South America
r SCHEMATIC DIAGRAM – MAIN SECTION (1/2) –
CFD-S33