Sony STR-K660P Service Manual page 11

Q Q
3 7 6 3 1 5 1 5 0
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this necessary note is printed in each
block.)
For schematic diagrams.
Note:
• All capacitors are in µF unless otherwise noted. p : µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and
1 / W or less unless otherwise
4
specified.
• % : indicates tolerance.
• : internal component.
f
• 2 : nonflammable resistor.
• 5 : fusible resistor.
• C : panel designation.
Note: The components identified by mark 0 or dotted line
with mark 0 are critical for safety.
Replace only with part number specified.
• A : B+ Line.
• B : B– Line.
• 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 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
T E
L 1 3 9 4 2 2 9 6 5 1 3
J : ANALOG INPUT
c : DIGITAL INPUT
• Abbreviation
E51 : Chilean and Peruvian models
MX : Mexican model
SP : Singapore model
w w w
.
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For printed wiring boards.
Note:
• X : parts extracted from the component side.
• a : Through hole.
• : internal component.
f
• : Pattern from the side which enables seeing.
C
Q These are omitted.
B E
B C E
These are omitted.
Caution:
Pattern face side: Parts on the pattern face side seen from
(Side A) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Side B) the parts face are indicated.
• Waveforms
DIGITAL Board
1
IC1101 wa (XOUT)
4.7 Vp-p
81.4ns
(12.288MHz)
1V/div, 40ns/DIV
2
IC1201 9 (MCLK1)
2.8 Vp-p
73.6ns (13.59MHz)
1V/div, 40ns/DIV
3
IC1601 id (XI)
3.5Vp-p
62.5ns (16MHz)
1V/div, 40ns/DIV
x a o u 1 6 3
y
i
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Q Q
3 7 6 3 1 5 1
c o
.
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2 4 2
9 8
5 0 8 9 2 4 9 8 2
m
STR-K660P
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