Download Sharp CD-MPX870W Service manual

CD-MPX870W
CHAPTER 5. CIRCUIT DESCRIPTION
[1] Waveforms of CD Circuit
Stopped
CH1=500 mV
DC 10:1
CH3=500 mV
DC 10:1
T
1
IC1 22
Stopped
CH1=200 mV
DC 10:1
500 ms/div
(500 ms/div)
NORM:20 kS/s
T
1999/04/07 09:51:15
500 ms/div
(500 ms/div)
NORM:20 kS/s
CH2=500 mV
DC 10:1
FDO
1
T
FDO
1
IC1 22
2
5
IC1 25
1
TDO
2
IC1 23
3
SPDO
CH1
v/DIV
500 mV
=Filter=
Smoothing : ON
BW : FULL
=Offset=
CH1 :
0.000 V
CH2 :
0.0 V
CH3 :
0.000 V
CH4 :
0.00 V
Stopped
CH1=500 mV
DC 10:1
1
CH2=10 V
DC 10:1
=Record Length=
Main :
100 K
Zoom :
2K
CH3=1 V
DC 10:1
=Filter=
Smoothing : ON
BW : FULL
=Trigger=
Mode : AUTO
Type : EDGE CH1
Delay :
0.0 ns
Hold off :
0.2 µs
Stopped
CH1=500 mV
DC 10:1
500 ms/div
(500 ms/div)
NORM:20 kS/s
6
FDO
1
1999/04/05 17:33:17
CH4=1 V
500 ms/div
(500 ms/div)
DC 10:1
NORM:20 kS/s
IC1 28
3
PD01
IC1 27
T
TE
3
CH Position To
-3 div
-1 div
0 div
=Filter=
=Offset=
Smoothing : ON
CH1 : 0.000 V
BW : FULL
CH2 : 0.0 V
CH3 : 0.00 V
CH4 : 0.00 V
4
CH3=1 V
DC 10:1
=Trigger=
Mode : NORMAL
Type : EDGE CH2
Delay :
2.924 ms
Hold off :
0.2 µs
4
7
IC1 16
=Record Length=
Main :
100 K
Zoom :
2K
PD00
IC1 22
T
2
3
=Offset=
CH1 :
0.000 V
CH2 :
0.000 V
CH3 :
0.00 V
CH4 :
0.00 V
1
CH2
Position
0.20 div
+1 div
+3 div
=Record Length=
Main :
100 K
Zoom :
2K
=Trigger=
Mode : AUTO
Type : EDGE CH1
Delay :
0.0 ns
Hold off :
0.2 µs
IC1 22
FDO
1
CH1
v/DIV
500 mV
=Filter=
Smoothing : ON
BW : FULL
IC1 2
Vp-p=1.0 V~1.3 V
0.5 mV/div,0.5 µsec/div
5–1
=Offset=
CH1 :
0.000 V
CH2 :
0.0 V
CH3 :
0.00 V
CH4 :
0.00 V
=Record Length=
Main :
100 K
Zoom :
2K
=Trigger=
Mode : AUTO
Type : EDGE CH2
Delay :
0.0 ns
Hold off :
0.2 µs