Sony STR-K7000 - Page 13

STR-K7000
13 13
STR-K7000
for 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.
•
f
: internal component.
• 2 : nonflammable resistor.
• 5 : fusible resistor.
• C : panel designation.
• A : B+ Line.
• B : B– Line.
•Voltage 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.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F : TUNER (FM/AM)
L : VIDEO (AUDIO)
I : VIDEO
J : CD (ANALOG)
c : CD (DIGITAL)
for printed wiring boards:
• X : parts extracted from the component side.
•
f
: internal component.
• : Pattern from the side which enables seeing.
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B) pattern face are indicated.
Parts face side: Parts on the parts face side seen from the
(Side A) parts face are indicated.
C
B
These are omitted.
E
Q
B
These are omitted.
C
Q
Q
E
BCE
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
Note: The components identified by mark 0 or dotted line
with mark 0 are critical for safety.
Replace only with part number specified.
• Waveforms
— DIGITAL Board —
1 IC1301 qd (CKOUT)
2.1 Vp-p
1.8 Vp-p
1V/DIV, 50nsec/DIV
3 IC1301 wa (XOUT)
1V/DIV, 50nsec/DIV
4 IC1501 9 (MCLK1)
0.6 Vp-p
1V/DIV, 50nsec/DIV
2 IC1301 qf (BCK)
2.4 Vp-p
1V/DIV, 0.2 µ sec/DIV
13.9 MHz
12.288 MHz
3.07 MHz
12.288 MHz
5 IC1501 qs (MCLK2)
1.1 Vp-p
2.2 Vp-p
1V/DIV, 50nsec/DIV
7 IC1101 id (X1)
1V/DIV, 50nsec/DIV
6 IC1501 qf (SCKOUT)
2.5 Vp-p
1V/DIV, 50nsec/DIV
24 MHz
12.288 MHz
13.9 MHz
— XM Board —
1 IC102 wh (OSCOUT)
0.8 Vp-p
1V/DIV, 50nsec/DIV
45.158 MHz