Sony D-E307CKT, Руководство по обслуживанию

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r WAVEFORMS
1
IC502 &ª
5
IC301 !§
2
IC502
^¢
6
IC801
@º
3
IC502 ^•
7
IC501 @£
4
IC502 &º
1.0
±
0.2 Vp-p
4.32MHz
3.9 Vp-p
SERVICE MODE
during TRK servo OFF
2.9 Vp-p
136
µ
sec
2.9 Vp-p
22.7
µ
sec
3.0 Vp-p
0.47 µ sec
2.6 Vp-p
16.9 MHz
3.0 Vp-p
4.19MHz
ESP : OFF
ESP : OFF
ESP : OFF
VOLT/DIV : 1 V AC
TIME/DIV : 0.1msec
VOLT/DIV : 1 V AC
TIME/DIV : 50
µ sec
VOLT/DIV : 1 V AC
TIME/DIV : 10msec
VOLT/DIV : 1 V AC
TIME/DIV : 0.2msec
VOLT/DIV : 1 V AC
TIME/DIV : 50nsec
VOLT/DIV : 1 V AC
TIME/DIV : 0.2msec
VOLT/DIV : 0.2 V AC
TIME/DIV : 0.5msec
r SCHEMATIC DIAGRAM D-E300AN/E301/E305/E307CK/E307CKT
Note :
• All capacitors are in µF unless otherwise noted. pF: µµF
50WV or less are not indicated except for electrolytics and
tantalums.
• All resistors are in and 1 /
4
W or less unless otherwise
specified.
• ¢ : internal component.
Note :
The components identified
by mark
! or dotted line
with mark ! are critical
for safety.
Replace only with part
number specified.
Note :
Les composants identifiés
par une marque
! sont
critiques pour la sécurité.
Ne les remplacer que par
une pièce portant le numéro
spécifié.
• B + : B+ Line
• : adjustment for repair.
• Power voltage is dc 4.5 V and fed with regulated dc power
supply from external power voltage jack (J401).
• Voltage and waveforms are dc with respect to ground under
no-signal conditions.
no mark : STOP
( ) : PLAY
• Voltages are taken with a VOM ( Input impedance 10M ).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
: CD