– 75 –
– 77 –
– 76 –
ZS-M50
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.
•
H
: adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
(
) : MW
<
> : LW
• 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.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
f
: MW/LW
6-13. SCHEMATIC DIAGRAM – TUNER SECTION –
r
Refer to page 94 for IC Block Diagrams.
r
Waveform – Tuner Section –
1
IC2
@º
XOUT
VOLT/DIV : 0.5 V AC
TIME/DIV : 5
µ
sec
1.5 Vp-p
75 kHz
