Sony CFD-S33 - Cd Boombox, Руководство по обслуживанию

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CFD-S33
r SCHEMATIC DIAGRAM – MAIN SECTION (2/2) –
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.
• H : adjustment for repair.
• 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 : CD STOP
• 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.
J : CD
r Waveforms
1
IC701 #¡
(RFO)
4
2 5
3 6
(PLAY MODE)
VOLT/DIV : 0.2 V AC
TIME/DIV : 0.5
µ
sec
IC702
@∞
(XPCK)
VOLT/DIV : 1 V AC
TIME/DIV : 0.1 msec
VOLT/DIV : 1 V AC
TIME/DIV : 50
µ
sec
VOLT/DIV : 1 V AC
TIME/DIV : 50
µ
sec
VOLT/DIV : 1 V AC
TIME/DIV : 50
µ
sec
VOLT/DIV : 0.2 V AC
TIME/DIV : 50 nsec
IC702 @•
(RFCK)
IC702 #¡
(MNT3)
IC702
#™
(MNT1)
IC702 #∞
(XTAO)
1.0 – 1.4
Vp-p
4.8 Vp-p
242.0 µ sec
5.3 Vp-p
140.5
µ
sec
5.3 Vp-p
140.5
µ
sec
5.3 Vp-p
140.5
µ
sec
1.1 Vp-p
16.9344 MHz