Read Sharp SD-EX100H (serv.man16) Service Manual online
– 59 –
SD-EX100H
WAVEFORMS OF CD CIRCUIT
IC704 5pin-6pin
Delay : 102.3ns
Hold off : MINIMUM
Hold off : MINIMUM
T
T
Stopped
CH1=1V
2000/09/18 17:25:20
DC 10:1
1ms/div
(1ms/div)
NORM:1MS/s
1
=Record Length=
Smoothing : ON
CH1 : 0.00V
CH2 : 0.00V
CH2 : 0.00V
Main : 10K
Zoom : 5K
Zoom : 5K
Mode : AUTO
Type : EDGE CH1
Type : EDGE CH1
CH3 : 0.00V
CH4 : 0.00V
CH4 : 0.00V
BW : 20MHz
=Trigger=
=Filter=
0div
Trigger Position To
-4div
+4div
DELAY
Trigger Knob
POSITION
=Offset=
Trigger
Position
-1.0
Position
-1.0
0
div
IC704
3pin-4pin
FO- FO+
3pin-4pin
FO- FO+
When reproducing
flawless disc
flawless disc
T
T
Stopped
CH1=1V
2000/09/18 17:18:51
DC 10:1
1ms/div
(1ms/div)
NORM:1MS/s
1
=Record Length=
Smoothing : ON
CH1 : 0.00V
CH2 : 0.00V
CH2 : 0.00V
Main : 10K
Zoom : 5K
Zoom : 5K
Mode : AUTO
Type : EDGE CH1
Delay : 102.3ns
Hold off : MINIMUM
Type : EDGE CH1
Delay : 102.3ns
Hold off : MINIMUM
CH3 : 0.00V
CH4 : 0.00V
CH4 : 0.00V
BW : 20MHz
=Trigger=
=Filter=
VAR
CH1 V/DIV
CAL
=Offset=
CH1
V/DIV
1V
V/DIV
1V
T
T
Stopped
CH1=1V
2000/09/18 17:16:55
DC 10:1
500us/div
(500us/div)
NORM:2MS/s
1
=Record Length=
Smoothing : ON
CH1 : 0.00V
CH2 : 0.00V
CH2 : 0.00V
Main : 10K
Zoom : 4K
Zoom : 4K
Mode : AUTO
Type : EDGE CH1
Delay : 102.3ns
Hold off : MINIMUM
Type : EDGE CH1
Delay : 102.3ns
Hold off : MINIMUM
CH3 : 0.00V
CH4 : 0.00V
CH4 : 0.00V
BW : 20MHz
=Trigger=
=Filter=
VAR
CH1 V/DIV
CAL
=Offset=
CH1
V/DIV
1V
V/DIV
1V
IC704 5pin-6pin
T
IC702
41pin
DMO
41pin
DMO
IC704
28pin
SP+
28pin
SP+
IC704
27pin
SP-
27pin
SP-
Stopped
CH1=1V
2000/09/18 16:42:08
DC 10:1
CH2=1V
DC 10:1
CH3=5V
DC 10:1
500ms/div
(500ms/div)
NORM:2kS/s
1
2
3
=Record Length=
Smoothing : ON
CH1 : 0.00V
CH2 : 0.00V
CH2 : 0.00V
Main : 10K
Zoom : 4K
Zoom : 4K
Mode : SINGLE
Type : EDGE CH1
Delay : 102.3ns
Hold off : MINIMUM
Type : EDGE CH1
Delay : 102.3ns
Hold off : MINIMUM
CH3 : 0.00V
CH4 : 0.00V
CH4 : 0.00V
BW : 20MHz
=Trigger=
=Filter=
=Offset=
T
When changing CD test
mode 2 3
mode 2 3
-1div
CH Position To
-3div
+1div
0div
+3div
CH3
Position
-
Position
-
3
.00div
T
IC702
34pin
TRO
34pin
TRO
IC704
3pin
FO-
3pin
FO-
IC704
4pin
FO+
4pin
FO+
Stopped
CH1=200mV
2000/09/18 15:14:35
DC 10:1
CH2=2V
DC 10:1
CH3=1V
DC 10:1
1s/div
(1s/div)
NORM:10kS/s
1
2
3
=Record Length=
Smoothing : ON
CH1 : 0.000V
CH2 : 0.00V
CH2 : 0.00V
Main : 10K
Zoom : 5K
Zoom : 5K
Mode : AUTO
Type : EDGE CH1
Delay : 102.3ns
Hold off : MINIMUM
Type : EDGE CH1
Delay : 102.3ns
Hold off : MINIMUM
CH3 : 0.00V
CH4 : 0.00V
CH4 : 0.00V
BW : 20MHz
=Trigger=
=Filter=
VAR
CH1 V/DIV
CAL
=Offset=
CH1
V/DIV
200mV
V/DIV
200mV
Normal operation
When closing cover
with no disc within
When closing cover
with no disc within
T
IC702
40pin
FMO
40pin
FMO
IC702
34pin
TRO
34pin
TRO
Stopped
CH1=200mV
2000/09/18 17:12:20
DC 10:1
CH2=1V
DC 10:1
100ms/div
(100ms/div)
NORM:10kS/s
1
2
=Record Length=
Smoothing : ON
CH1 : 0.000V
CH2 : 0.00V
CH2 : 0.00V
Main : 10K
Zoom : 5K
Zoom : 5K
Mode : AUTO
Type : EDGE CH1
Delay : 102.3ns
Hold off : MINIMUM
Type : EDGE CH1
Delay : 102.3ns
Hold off : MINIMUM
CH3 : 0.00V
CH4 : 0.00V
CH4 : 0.00V
BW : 20MHz
=Trigger=
=Filter=
VAR
CH1 V/DIV
CAL
=Offset=
CH1
V/DIV
200mV
V/DIV
200mV
During track jump
1 2
3 4
8
9
9
1
2
3 4
5
6
7
Flawed disc
Flawless disc
Figure 1
Figure 3
Figure 5
Figure 2
Figure 4
Figure 6
Click on the first or last page to see other SD-EX100H (serv.man16) service manuals if exist.