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WM-FS473
5-5. SCHEMATIC DIAGRAM (DISPLAY SECTION)
r
WAVEFORM
1
SUB
1.1Vp-p
75kHz 13.6µsec
IC701 %�
VOLT/DIV : 0.2V AC TIME/DIV : 5 µsec
r
IC BLOCK DIAGRAM
OUT GND VCC
IC702 PST9018NL
5
4
+
OP1 CO1
�
+ �
1
NC
2
3
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 � and 1/4 W or less unless otherwise � � � � � specified. C : panel designation. U : B+ Line. Power voltage is dc 3 V and fed with regulated dc power supply from battery terminal. Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. Voltages and waveforms are dc with respect to ground in playback mode. no mark : FM (RADIO SECTION) PLAY (TAPE SECTION) ( ) : AM Voltages are taken with a VOM (Input impedance 10 M�). Voltage variations may be noted due to normal production tolerances. Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances. Circled numbers refer to waveforms.
