– 23 –
– 24 –
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
Summary of Contents for SPP-N1001
Page 3: ... 3 SECTION 1 GENERAL This section is extracted from instruction manual ...
Page 4: ... 4 ...
Page 5: ... 5 SPP N1003 ...
Page 48: ...15 SPP N1001 N1003 ...
