Schematic Diagram (Base Unit Section) - Sony SPP-N1001 Service Manual

SPP-N1001/N1003

SCHEMATIC DIAGRAM (BASE UNIT SECTION)

z
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
/ W or less unless otherwise
4
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 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.
Waveform
z
• Signal path.
N : RX
1
O
: TX
P
: bell
• Abbreviation
CND : Canadian
MX : Mexican
C&SA : Central and South America
8MHz
AR : Argentina
IC501 qh
345 mVp-p
X OUT
VOLT/DIV : 0.1 V AC
TIME/DIV : 50 nsec
4 4