WM-EX500/EX505
– 17 –
– 18 –
– 19 –
6-3.
SCHEMATIC DIAGRAM
• See page 20 for IC Block Diagrams.
• Waveforms
1
IC702
4
LX
1 V/DIV, 5 µs/DIV
3 Vp-p
10
µ
s
2
IC601
5
OSC, IC701
5
OSC IN
20 mV/DIV, 1 ms/DIV
23.2 mVp-p
1.7 ms
3
IC701
wj
X1
500 mV/DIV, 100 ns/DIV
2.1 Vp-p
250 ns
Note on Schematic Diagram:
• 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.
•
%
: indicates tolerance.
•
f
: internal component.
•
C
: panel designation.
•
U
: B+ Line.
•
H
: adjustment for repair.
• Total current is measured with a cassette installed.
• Power voltage is dc 1.5 V and fed with regulated dc power
supply from battery terminal.
• Voltages and waveforms are dc with respect to ground in
playback mode.
no mark : PLAYBACK
• 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.
E
: PLAYBACK
