Sony ICF-SW7600GR Service Manual - Page 15

Schematic Diagram – Key Board –, Waveform

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4-7. SCHEMATIC DIAGRAM - KEY BOARD - • Refer to page 16 for IC Pin Function. ICF-SW7600GR 1 • WAVEFORM 1 IC302 wf 13.3 µs 15 1.8 Vp-p 15 Note on Schematic Diagram: • 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 1/4 W or less unless otherwise specified. • C : panel designation. • A : B+ Line. • H : adjustment for repair. • Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. • Voltages are taken with a VOM (Input impedance 10 MΩ). Voltage variations may be noted due to normal production tolerances. • Voltage variations may be noted due to normal production tolerances. • Abbreviation CH : Chinese model

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15
15
ICF-SW7600GR
4-7. SCHEMATIC DIAGRAM
–
KEY BOARD
–
•
Refer to page 16 for IC Pin Function.
Note on Schematic Diagram:
•
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.
•
C
: panel designation.
•
A
: B+ Line.
•
H
: adjustment for repair.
•
Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
1
•
Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
•
Voltage variations may be noted due to normal produc-
tion tolerances.
•
Abbreviation
CH
: Chinese model
1
IC302
wf
1.8 Vp-p
13.3
µ
s
•
WAVEFORM