Sony CFD-S33 Service Manual page 37

r SCHEMATIC DIAGRAM – MAIN SECTION (1/2) –
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r
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All resistors are in Ω and
• U : B+ Line.
• Power voltage is dc 9 V and fed with regulated dc power
• Voltages and waveforms are dc with respect to ground
• Voltages and currents are taken with a VOM (Input im-
• Waveforms are taken with a oscilloscope.
• Circled numbers refer to waveforms.
• Signal path.
• Abbreviation
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CFD-S33
Waveforms
1
1.1 Vp-p
75 kHz
IC3 1
VOLT/DIV : 0.2 V AC
(X OUT) TIME/DIV : 10 µsec
2
3.6 Vp-p
4.19 MHz
IC801 &™
VOLT/DIV : 1 V AC
(XTAL)
TIME/DIV : 0.1 µsec
3
4.4 Vp-p
32.768 kHz
IC801 #º
VOLT/DIV : 1 V AC
(TX) TIME/DIV : 20 µsec
50 WV or less are not indicated except for electrolytics
and tantalums.
1 / W or less unless otherwise
4
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.
supply from external power voltage jack.
under no-signal (detuned) conditions.
no mark : FM (Radio Section) PLAY (Tape Section)
( ) : AM (Radio Section) REC (Tape Section)
pedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
Voltage variations may be noted due to normal produc-
tion tolerances.
F : FM
E : PB (L-CH)
d
: PB (R-CH)
a
: REC (L-CH)
G : REC (R-CH)
CND : Canadian
IT : Italian
SP : Singapore
C&SA : Central and South America
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