– 15 – – 16 – – 18 –– 17 –
WM-EX655/EX668
Note:
• 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.
• 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 MΩ).
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 : 10µsec
r
WAVEFORM
5-3. SCHEMATIC DIAGRAM
r
Refer to page 19 for IC Block Diagrams.
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