Schematic Diagram - Main Section (2/3) - Sony MZ-R55 Service Manual

6-9. SCHEMATIC DIAGRAM — MAIN SECTION (2/3) — • Refer to page 49 for IC Block Diagrams.
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MZ-R55
• Waveforms
5
VOLT/DIV : 1V AC
TIME/DIV : 20nsec
2.3Vp-p
12kHz
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$º
IC802
6
VOLT/DIV : 0.1V AC
TIME/DIV : 10µsec
1.4Vp-p
32kHz
8
IC805
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
/ W or less unless otherwise
4
specified.
• % : indicates tolerance.
• C : panel designation.
• A : B+ Line.
• H : adjustment for repair.
• Power voltage is dc 3 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
• 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.
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