Sony STR-DB900 - Page 11

11
STR-DB900
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. (p: pF)
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.
• f : internal component.
• 2 : nonflammable resistor.
• C : panel designation.
• A : B+ Line.
• B : B– Line.
•Voltages and waveforms are dc with respect to ground un-
der no-signal conditions.
No mark : FM
*
: Impossible to measure
•Voltages are taken with a VOM (Input impedance 10 MΩ).
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.
F : FM
g : VIDEO
•Abbreviation
SP : Singapore model
MY : Malaysia model
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
(In addition to this necessary note is printed in each block.)
Note on Printed Wiring Board:
• X : parts extracted from the component side.
• a : Through hole.
•
: Pattern from the side which enables seeing.
•Abbreviation
SP : Singapore model
MY : Malaysia model
Caution:
Pattern face side: Parts on the parts face side seen from
(Side A) the parts face are indicated.
Parts face side: Parts on the pattern face side seen from
(Side B) the pattern face are indicated.
Note: The components identified by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specified.