Sony STR-KM2, Руководство по обслуживанию

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For Schematic Diagrams.
Note:
• All capacitors are in μ F unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in

and
1
/ 4 W or less unless otherwise
speci
fi
ed.
•
f
: internal component.
•
2
: non
fl
ammable resistor.
•
5
:
fl
usible resistor.
•
C
: panel designation.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
•
A
: B+ Line.
•
B
: B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER
• Voltages are taken with a VOM (Input impedance 10
M

). Voltage variations may be noted due to normal pro-
duction 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)
f
: TUNER
E
: VIDEO
J
: DVD (DIGITAL)
For Printed Wiring Boards.
Note:
•
X
: Parts extracted from the component side.
•
Y
: Parts extracted from the conductor side.
•
f
: Internal component.
• : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Indication of transistor.
C
B
These are omitted.
E
Q
C E B
These are omitted.
Note: The components identi
fi
ed by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number speci
fi
ed.
Caution:
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A) Parts on the pattern face side seen
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
• Abbreviation
AR :
Argentina model
AUS : Australian model
E51 : Chilean and Peruvian models
EA : Saudi Arabia model
MX : Mexican model
RU : Russian model
SAF : South African model
SP
: Singapore model
TH : Thai model
• Abbreviation
AR :
Argentina model
AUS : Australian model
E51 : Chilean and Peruvian models
EA : Saudi Arabia model
MX : Mexican model
RU : Russian model
SAF : South African model
SP
: Singapore model
TH : Thai model
240m Vp-p
24.59 MHz
2
IC2123
2
(MCK)
100 mV/DIV, 10 ns/DIV
1.54 Vp-p
24.57 MHz
5
IC2806
ea
(XOUT)
500 mV/DIV, 10 ns/DIV
3.0 Vp-p
4.0 MHz
1
IC2105
os
(X1(X_OUT))
500 mV/DIV, 100 ns/DIV
3.0 Vp-p
3.1 MHz
3
IC2123
3
(BCK)
500 mV/DIV, 100 ns/DIV
3.4 Vp-p
47.81 kHz
4
IC2123 4 (LRCK)
500 mV/DIV, 5 P s/DIV
• Waveforms
– DIGITAL AUDIO Board – – DISPLAY Board –
6
IC100 5 (OSC)
200 mV/DIV, 2.5
P
s/DIV
154.8 kHz
1.29 Vp-p
Ver. 1.1
STR-KM2/KM3
STR-KM2/KM3
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