Sony MZ-R37 Service Manual page 47

MZ-R37
3. SCHEMATIC DIAGRAM — MAIN SECTION (1/3) — • Refer to page 15 for Waveforms.
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• Difference of Schematic Diagram (US Model)
(Page 19)
(Page 15)
(Page 15)
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
(Page 19) and tantalums.
• All resistors are in Ω and
1 / W or less unless otherwise
4
specified.
• % : indicates tolerance.
Note: Note:
The components identi- Les composants identifiés par
une marque 0 sont critiques
fied by mark 0 or dotted
line with mark 0 are criti- pour la sécurité.
cal for safety. Ne les remplacer que par une
Replace only with part piéce portant le numéro
number specified. spécifié.
(Page 15)
• A : B+ Line.
• Power voltage is dc 4.5 V and fed with regulated dc power
supply from external power voltage jack.
• Voltage and waveforms are dc with respect to ground
under no-signal conditions.
no mark : PB
( ) : REC
∗
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 MΩ).
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.
(Page 15)
• Circled numbers refer to waveforms.
(Page 15) • Signal path.
J : PB (digital)
c : REC (digital)
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