Sony HCD-S300 Service Manual page 20

HCD-S300
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 / W or less unless otherwise
4
specified.
• f : internal component.
• 2 : nonflammable resistor.
• 5 : fusible resistor.
• C : panel designation.
Note:
The components identi-
fied by mark 0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specified.
• 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 and waveforms are dc with respect to ground in
service mode.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
no mark : STOP
• Circled numbers refer to waveforms.
• Signal path.
J
: DVD/CD
c : AUDIO
g : VIDEO
L : C
K : Y
• Abbreviation
SP : Singapore model.
HK : Hong Kong model.
AUS : Australian model.
MX : Mexican model.
CND : Canadian model.
E32 : Cantral & South America model.
For printed wiring boards.
Note:
• X : parts extracted from the component side.
• a : Through hole.
• b : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Indication of transistor
C
Q
These are omitted
B C E
B E
These are omitted
WAVEFORMS
– DVD (4/12) SECTION –
– DVD (1/12) SECTION –
1 9
3.4Vp-p
27.0MHz
IC001 6
q;
2
2.1Vp-p
H
33.8MHz
IC001 qs
3 qa
2.8Vp-p
24.5MHz
H
IC001 qd
4
– DVD (5/12) SECTION –
2Vp-p (DVD)
2.4Vp-p (CD)
qs
DVD : 36.8MHz
CD : 33.8MHz
IC001 qj
500mV/DIV
– DVD (2/12) SECTION –
IC303 qj DVD PLAY
5 qd
1.4Vp-p
500mV/DIV 50ms/DIV
500mV/DIV
IC701 yl DVD PLAY IC303 ql CD PLAY
6
– DVD (8/12) SECTION –
1.7Vp-p
qf
500mV/DIV 200ms/DIV
IC701 yl CD PLAY
7
220mVp-p
qg
100mV/DIV 50ms/DIV
IC701 yk DVD PLAY
8
440mVp-p
– DVD (10/12) SECTION –
500mV/DIV 50ms/DIV
qh
IC701 yk CD PLAY
20 20
– TK SECTION –
1
1.0Vp-p
200mV/DIV 100ns/DIV
H
IC401 ya IC001 1 DVD PLAY
2
0.75Vp-p
500mV/DIV 500ns/DIV
IC401 ys IC001 1 CD PLAY
3
1.2Vp-p
200mV/DIV 500ms/DIV
IC001 wl DVD PLAY
IC401 yg
4
200mV/DIV 20ms/DIV
1.5Vp-p
IC001 wl CD PLAY
100ns/DIV 5
500mV/DIV 50ms/DIV
1.5Vp-p
IC001 el DVD PLAY
500ns/DIV 6
500mV/DIV 200ms/DIV
IC001 el CD PLAY
7
2.1Vp-p
12.4MHz
IC202 os
100mV/DIV 50ms/DIV
IC001 r; DVD PLAY
8
2.5Vp-p
24.9MHz
IC202 5
500mV/DIV 50ms/DIV
IC001 r; CD PLAY
9
1.8Vp-p
500mV/DIV 100ns/DIV
16MHz
IC001 tf DVD PLAY
IC903 qg
q;
500mV/DIV 500ns/DIV
IC001 tf CD PLAY
– VIDEO SECTION –
1
536 1.2Vp-p
mVp-p
H
IC700 5
2
880
1Vp-p
mVp-p
H
IC702 9
3
592mVp-p 0.75Vp-p
H
IC702 1
4 5
448mVp-p 2.4Vp-p
H
IC701 qd, qg
6
2Vp-p
1.3Vp-p
H
IC701 qa
7
0.75Vp-p
1.7Vp-p
H
Q700 E
180mVp-p
860mVp-p
1.5Vp-p
1.5Vp-p