Sony STR-KM2 - Page 18

For Schematic Diagrams.
Note:
• 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

and
1
/
4
W or less unless otherwise
specifi ed.
•
f
: internal component.
•
2
: nonfl 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
CEB
These are omitted.
Note: The components identifi ed by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specifi 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 Ps/DIV
• Waveforms
– DIGITAL AUDIO Board – – DISPLAY Board –
6 IC100 5 (OSC)
200 mV/DIV, 2.5 Ps/DIV
154.8 kHz
1.29 Vp-p
Ver. 1.1
STR-KM2/KM3
STR-KM2/KM3
1818