– 15 –
– 16 –
– 18 –
– 17 –
WM-EX655/EX668
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.
•
U
: B+ Line.
•
H
: adjustment for repair.
• 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 : PLAY
• 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
: PB
1
250mVp-p
32.768kHz
IC701
!∞
XTB
VOLT/DIV : 50mV AC
TIME/DIV : 10
µ
sec
r
WAVEFORM
5-3. SCHEMATIC DIAGRAM
r
Refer to page 19 for IC Block Diagrams.
Summary of Contents for WM-EX655
Page 8: ......
