Sony ICF-SW7600GR Service Manual - Page 13

Schematic Diagram – Main Board (2/2) –, Waveforms

Page 13 highlights

4-5. SCHEMATIC DIAGRAM - MAIN BOARD (2/2) - • Refer to page 16 for IC Block Diagrams. ICF-SW7600GR IC B/D 1 2 IC B/D IC B/D IC B/D 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. • ¢ : internal component. • 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. • Signal path. F : FM L : MW/LW h : SW • Abbreviation CH : Chinese model EA : Saudi Arabia model • WAVEFORMS 1 IC201 wd 100 mVp-p 18.1 ns 2 Q216 Collector 550 ns 4.4 Vp-p 13 13

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26

13
13
ICF-SW7600GR
4-5. SCHEMATIC DIAGRAM
MAIN BOARD (2/2)
Refer to page 16 for IC Block Diagrams.
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
and
1
/
4
W or less unless otherwise
specified.
¢
: internal component.
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 M
).
Voltage variations may be noted due to normal produc-
tion tolerances.
Voltage variations may be noted due to normal produc-
tion tolerances.
Signal path.
F
: FM
L
: MW/LW
h
: SW
Abbreviation
CH
: Chinese model
EA
: Saudi Arabia model
IC B/D
IC B/D
IC B/D
IC B/D
1
2
1
IC201
wd
100 mVp-p
18.1 ns
550 ns
2
Q216 Collector
4.4 Vp-p
WAVEFORMS