Sony SAVA-D900, Руководство по обслуживанию

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SAVA-D900/D900FR/D900R/SS-T900
29 29
• Indication of transistor
C
These are omitted
E B
Q
C
These are omitted
E B
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
For schematic diagrams.
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
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.
For printed wiring boards.
Note:
•
X
: parts extracted from the component side.
• a : Through hole.
• b
: Pattern from the side which enables seeing.
•
U
: B+ Line.
•
V
: B– Line.
• H : adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
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.
no mark : FM
(
) : DVD PLAY
• Circled numbers refer to waveforms.
• Signal path.
J
: DVD/CD
c
: AUDIO (digital)
g : VIDEO
L : C
F
: Y
f
: FM
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
WAVEFORMS
– DVD (1/12) SECTION –
– DVD (2/12) SECTION –
– DVD (4/12) SECTION –
– DVD (5/12) SECTION –
– DVD (8/12) SECTION –
– DVD (10/12) SECTION –
– TK SECTION –
IC001
qj
1
2
3
4
IC001 6
IC001 qs
IC001
qd
3.4Vp-p
27.0MHz
2.1Vp-p
33.8MHz
2.8Vp-p
24.5MHz
2Vp-p (DVD)
2.4Vp-p (CD)
DVD : 36.8MHz
CD : 33.8MHz
IC701
yk
CD PLAY
5
6
7
8
IC701
yl
DVD PLAY
IC701
yl
CD PLAY
IC701 yk DVD PLAY
1.4Vp-p
500mV/DIV 50ms/DIV
1.7Vp-p
500mV/DIV 200ms/DIV
220mVp-p
100mV/DIV 50ms/DIV
440mVp-p
500mV/DIV 50ms/DIV
9
q;
qa
IC401
ya
IC401
ys
IC401
yg
1.0Vp-p
H
0.75Vp-p
H
1.2Vp-p
H
qs
qd
IC303
qj
DVD PLAY
IC303
ql
CD PLAY
1.5Vp-p
500mV/DIV 100ns/DIV
1.5V l p-p
500mV/DIV 500ns/DIV
qf
qg
IC202
os
IC202
5
2.1Vp-p
12.4MHz
2.5Vp-p
24.9MHz
qh
IC903
qg
1.8Vp-p
16MHz
IC001 wl CD PLAY
1
2
3
4
IC001
1
DVD PLAY
IC001
1
CD PLAY
IC001
wl
DVD PLAY
IC001
r;
CD PLAY
5
6
7
8
IC001
el
DVD PLAY
IC001
el
CD PLAY
IC001
r;
DVD PLAY
536
mVp-p
200mV/DIV 100ns/DIV
500mV/DIV 500ns/DIV
880
mVp-p
592mVp-p
200mV/DIV 500ms/DIV
448mVp-p
200mV/DIV 20ms/DIV
1.3Vp-p
500mV/DIV 50ms/DIV
180mVp-p
100mV/DIV 50ms/DIV
1.7Vp-p
500mV/DIV 200ms/DIV
860mVp-p
500mV/DIV 50ms/DIV
IC001
tf
CD PLAY
9
q;
IC001
tf
DVD PLAY
1.5Vp-p
500mV/DIV 100ns/DIV
1.5Vp-p
500mV/DIV 500ns/DIV