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ZS-D55
6-9. SCHEMATIC DIAGRAM (CONTROL SECTION)
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.
•
: B+ Line.
• Power voltage is dc 12V and fed with regulated dc power
supply from external power voltage jack.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
• 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.
VOLT/DIV : 2 V AC
TIME/DIV : 0.1
µ
sec
VOLT/DIV : 2 V AC
TIME/DIV : 10
µ
sec
r
Waveforms (CONTROL Section)
1
IC801
r;
2
IC801
os
5 Vp-p
4.21 MHz
5 Vp-p
32.768 kHz