Sony PS-J10 Primary, Руководство по обслуживанию

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SPEED ADJUSTMENT
Note:
Be sure to perform 33rpm adjustment before 45rpm.
1. Place a stroboscope board on the turntable sheet.
2. Set the speed switch to 33.
3. Set to play mode.
4. Adjust VR1 so that the stripped pattern of stroboscope board
is stationary.
5. Set the speed switch to 45.
Adjust VR2 in the same way.
Note:
• 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.
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
piéce por tant le numéro
spécifié.
•
C
: panel designation.
•
U
: B+ Line.
•
H
: adjustment for repair.
• Voltages and waveforms are dc with respect to ground in
playback mode.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
– 5 –
– 6 –
PS-J10