Sony SPP-N1001, Руководство по обслуживанию

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SPP-N1001/N1003
5-5. SCHEMATIC DIAGRAM (BASE UNIT SECTION)
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.
• : B+ Line.
• H : adjustment for repair.
• Power voltage is dc 9V and fed with regulated dc power
supply from external power voltage jack (J101).
• Voltages and waveforms are dc with respect to ground in
service mode.
• 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.
z
Waveform
1
IC501 qh X OUT
VOLT/DIV : 0.1 V AC
TIME/DIV : 50 nsec
345 mVp-p
8MHz
• Signal path.
N : RX
O : TX
P
: bell
• Abbreviation
CND : Canadian
MX
: Mexican
C&SA : Central and South America