— 6 —
For schematic diagrams.
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
/
4
W or less unless otherwise
specified.
•
%
: indicates tolerance.
•
¢
: internal component.
•
2
: nonflammable resistor.
•
1
: fusible resistor.
•
C
: panel designation.
•
U
: B+ Line.
•
V
: B– Line.
•
H
: adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
No mark : FM
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
• Abbreviation
CND : Canadian
EE
: East European
AUS
: Australian
CH
: Chinese
G
: German
MY
: Malaysia
SP
: Singapore
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this necessary note is printed in each
block.)
For printed wiring boards.
Note:
•
X
: parts extracted from the component side.
•
®
: Through hole.
•
¢
: internal component.
•
b
: Pattern from the side which enables seeing.
Note:
The components identified by
mark
!
or dotted line with mark
!
are critical for safety.
Replace only with part number
specified.
Note:
Les composants identifiés par
une marque
!
sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.
• Waveform
1
IC201 34PIN (X1)
2
IC300 32PIN (OSC)
8MHz
4.19MHz
5.2Vp-p
0.58Vp-p
Summary of Contents for STR-DE425 - Fm Stereo/fm-am Receiver
Page 8: ...STR DE425 9 10 3 3 SCHEMATIC DIAGRAM DISPLAY SECTION ...
Page 10: ...STR DE425 13 14 3 5 SCHEMATIC DIAGRAM POWER SECTION ...
Page 13: ...STR DE425 19 20 3 8 SCHEMATIC DIAGRAM MAIN SECTION 1 3 ...
Page 14: ...STR DE425 21 22 3 9 SCHEMATIC DIAGRAM MAIN SECTION 2 3 ...
Page 15: ...STR DE425 23 24 3 10 SCHEMATIC DIAGRAM MAIN SECTION 3 3 ...
