Schematic Diagram -Front Key Section - Sony ZS-M7 Service Manual

6-18. SCHEMATIC DIAGRAM – FRONT KEY SECTION –
r Waveforms – Front Key Section –
Note:
• All capacitors are in F unless otherwise noted. pF: F
1
50 WV or less are not indicated except for electrolytics
and tantalums.
1
• All resistors are in and / W or less unless otherwise
4
specified.
• A : B+ Line.
• B : B– Line.
• Voltages and waveforms are dc with respect to ground 6 MHz
under no-signal conditions.
IC401 $º (XTAL)
no mark : FM
• Voltages are taken with a VOM (Input impedance 10 M ). VOLT/DIV : 0.2 V AC
Voltage variations may be noted due to normal produc-
TIME/DIV : 50 nsec
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
– 97 –
1.0 Vp-p
– 98 –
ZS-M7
– 99 –