Schematic Diagram - Main Section (2/3) - Sony MZ-R37 Service Manual

MZ-R37
6-7. SCHEMATIC DIAGRAM — MAIN SECTION (2/3) — • Refer to page 44 for IC Block Diagrams.
• Waveform
5
VOLT/DIV : 1V AC
TIME/DIV : 20nsec
(Page 43)
(Page 42)
2.2Vp-p
(Page 37)
(Page 37)
12kHz
$º
IC801 (Page 37)
(Page 37)
Note:
(Page 43)
• 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 / W or less unless otherwise
4
specified.
• % : indicates tolerance.
• ¢ : internal component.
• C : panel designation.
• 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
(Page 37)
under no-signal conditions.
no mark : PB
(Page 37)
( ) : 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.
• Circled numbers refer to waveforms.
• Signal path.
c : REC (digital)
– 38 – – 39 – – 40 –