Sony STR-DE415 - Schematic Diagram - Main Section

3-3. SCHEMATIC DIAGRAM — MAIN SECTION —
¢ Waveform
IC300 @
Note:
¢ All capacitors are in uF unless otherwise noted. pF: uF S5OWV or
less are not indicated except for electrolytics and tantalums.
¢ All resistors are in Q and 1/4W or less unless otherwise specified.
¢ A __ : Internal component.
° : B+ Line.
° : B-Line.
¢ Voltages and waveforms are dc with respect to ground under no-
signal (detuned) conditions.
No mark: FM
( ): AM
¢ Voltages are taken with a VOM (Input impedance 10MQ).
Voltage variations may be noted due to normal production
tolerances.
¢ Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
¢ Circled numbers refer to waveforms.
* Signal path.
<> :FM
¢ Abbreviation
G : German
EE : East European
The components identified by mark A\ or dotted
line with mark A\ are critical for safety.
Replace only with part number specified.
=
¢ Refer to page 15 for IC Block Diagrams.
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E415 MODEL
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¢ When TU001 (TUNER UNIT) becomes defective,
it is exchanged by unit replacement,
and will not be repaired.
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1-233-594-12 (AEP, UK G)
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