Sony hcd-m700, Руководство по обслуживанию, Страница: 59 / 132

59 59
HCD-M700
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
µ
F unless otherwise noted. pF:
µµ
F
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.
•
1
: fusible resistor.
•
C
: panel designation.
For printed wiring boards.
Note:
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
a
: Through hole.
• : Pattern from the side which enables seeing.
•
A
: B+ Line.
•
B
: 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.
•
∗
: Impossible to measure
• 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
: FM
J
: DVD
c
: DVD DIGITAL
p
: PB (MD)
l
: REC (MD)
I
: DIGITAL AUDIO
g
: VIDEO
• Abbreviation
HK : Hong Kong model
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
• Indication of transistor
B
These are omitted.
C E
B
These are omitted.
C E
C
B
These are omitted.
E
Q
• Waveforms
– BD Board –
1
IC101
ek
(RF)
2
IC101
ef
(FE) (Play mode)
4
IC151
o;
(FS4)
3
IC101
wh
(TE) (Play mode)
1.3 Vp-p
0.2 Vp-p
1.6 Vp-p
during track jump
3.5 Vp-p
176.4 kHz
– DIGITAL Board –
1
IC701
qf
(XTALOUT)
2
IC721
qd
(XOUT)
81 ns
3.9 Vp-p
1 V/DIV, 40 ns/DIV
100 ns
3.4 Vp-p
1 V/DIV, 40 ns/DIV
– RF-240 Board –
1
IC001
2
(RFIN)
2
IC001
ra
(TE)
4
IC001
tl
(SIGO)
3
IC001
rs
(FE)
0.1 V/DIV, 1 ms/DIV
0.2 V/DIV, 100 ns/DIV
0.5 V/DIV, 100 ns/DIV
0.5 V/DIV, 1 ms/DIV
0.72 Vp-p
0.5 Vp-p
0.3 Vp-p
1.4 Vp-p
– CONTROL Board –
1
IC306
qd
(XOUT)
2
IC306
qa
(XCOUT)
3.4 Vp-p
30.5
µ
s
1 V/DIV, 10
µ
s/DIV
62.5 ns
2 Vp-p
1 V/DIV, 40 ns/DIV
– TC Board –
12
µ
s
12.7 Vp-p
5 V/DIV, 4
µ
s/DIV
1
Q401 collector (TAPE REC)
1
IC102
8
(XTO)
2
IC102
9
(512FS6CH)
6
IC701
2
(INA)
5
IC103
td
(X1)
3
IC102
qd
(33MAVD)
29.5 ns
37 ns
37 ns
60.6 ns
44 ns
1 V/DIV, 10 ns/DIV
1 V/DIV, 20 ns/DIV
1 V/DIV, 10 ns/DIV
1 V/DIV, 10 ns/DIV
1 V/DIV, 10 ns/DIV
200 mV/DIV, 20
µ
s/DIV
4.5 Vp-p
4.1 Vp-p
4.2 Vp-p
4
IC102
3
(27MAVD)
4.7 Vp-p
3.9 Vp-p
0.7 Vp-p
H
7
IC701
4
(INB)
8
IC701
7
(INC)
0
IC701
qs
(OUT B2)
qs
IC702
2
(INA)
qa
IC701
qg
(OUT A1)
9
IC701
9
(OUT C2)
500 mV/DIV, 20
µ
s/DIV
500 mV/DIV, 20
µ
s/DIV
200 mV/DIV, 20
µ
s/DIV
500 mV/DIV, 20
µ
s/DIV
500 mV/DIV, 20
µ
s/DIV
200 mV/DIV, 20
µ
s/DIV
H
1.0 Vp-p
H
1.3 Vp-p
H
2.6 Vp-p
H
2.0 Vp-p
H
1.3 Vp-p
H
0.8 Vp-p
0.8 Vp-p
H
qd
IC702
4
(INB)
qf
IC702
7
(INC)
qh
IC702
qs
(OUT B2)
qj
IC702
qg
(OUT A1)
qg
IC702
9
(OUT C2)
500 mV/DIV, 20
µ
s/DIV
500 mV/DIV, 20
µ
s/DIV
200 mV/DIV, 20
µ
s/DIV
200 mV/DIV, 20
µ
s/DIV
500 mV/DIV, 20
µ
s/DIV
1.0 Vp-p
H
2.0 Vp-p
H
1.6 Vp-p
H
H
1.6 Vp-p
– DVD Board –
Caution:
Pattern face side:
Parts on the pattern face side seen from
(SIDE B) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(SIDE A) the parts face are indicated.
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com