Sony MZ-R50 Service Manual - Page 42

Schematic Diagram - Main 3/3

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6-7. SCHEMATIC DIAGRAM - MAIN (3/3) SECTION - r Refer to page 64 for IC Block Diagrams. - 57 - - 58 - - 59 - MZ-R50 r WAVEFORMS 5 2.3Vp-p 12MHz IC801 $º 6 VOLT/DIV : 1V AC TIME/DIV : 20nsec 0.8Vp-p 32kHz IC804 2 VOLT/DIV : 0.1V AC TIME/DIV : 10µsec 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. • ¢ : internal component. • A : B+ Line. • C : panel designation. • Power voltage is dc 6V and fed with regulated dc power supply from external power voltage jack (J901). • Voltages 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. - 60 -

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– 59 –
MZ-R50
Note:
•
All capacitors are in
μ
F unless otherwise noted.
pF:
μμ
F
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.
•
¢
: internal component.
•
A
: B+ Line.
•
C
: panel designation.
•
Power voltage is dc 6V and fed with regulated dc power
supply from external power voltage jack (J901).
•
Voltages 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 M
Ω
).
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.
5
6
r
WAVEFORMS
2.3Vp-p
12MHz
0.8Vp-p
32kHz
IC801
$º
VOLT/DIV : 1V AC
TIME/DIV : 20nsec
IC804
2
VOLT/DIV : 0.1V AC
TIME/DIV : 10
μ
sec
6-7. SCHEMATIC DIAGRAM – MAIN (3/3) SECTION –
r
Refer to page 64 for IC Block Diagrams.