– 53 –
– 54 –
– 51 –
– 52 –
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.
•
5
: fusible resistor.
Note: The components identified by mark
!
or dotted
line with mark
!
are critical for safety.
Replace only with part number specified.
•
A
: B+ Line.
• Voltages and waveforms are dc with respect to ground
under no-signal 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.
• Signal path.
F
: FM
E
: MD PLAY
q
: MD REC
J
: CD
6-6. SCHEMATIC DIAGRAM – MAIN SECTION (2/3) –
r
Refer to page 89 for IC Block Diagrams.
r
Waveforms – Main Section (2/3) –
1
IC405
$™
XTAL
VOLT/DIV : 0.1 V AC
TIME/DIV : 50 nsec
2
IC405
*¶
TX
VOLT/DIV : 1 V AC
TIME/DIV : 10
µ
sec
0.5 Vp-p
8 MHz
3.0 Vp-p
32 kHz
3
IC406
!¢
XO
VOLT/DIV : 0.5 V AC
TIME/DIV : 0.1
µ
sec
2.5 Vp-p
4 MHz
