DOWNLOAD Sharp XL-HP700 (serv.man16) Service Manual ↓ Size: 313.23 KB | Pages: 4 in PDF or view online for FREE

Model
XL-HP700 (serv.man16)
Pages
4 Few pages! See other manuals at the bottom of the first or last page.
Size
313.23 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System / Troubleshooting
File
xl-hp700-sm16.pdf
Date

Sharp XL-HP700 (serv.man16) Service Manual ▷ View online

XL-HP700H
– 38 –
T
T
FDO
SPDO
Stopped
CH1=200 mV
DC   10:1
CH2=500 mV
DC   10:1
500 ms/div
1999/04/07  09:51:15
(500 ms/div)
NORM:20 kS/s
2
1
=Record Length=
Smoothing :   ON
CH1  :      0.000 V
CH2  :      0.000 V
Main  :      100 K
Zoom  :         2 K
Mode  :   NORMAL
Type   :   EDGE CH2
Delay  :               2.924 ms
Hold off  :                0.2 
µ
s
CH3  :        0.00 V
CH4  :        0.00 V
BW   : FULL
=Trigger=
=Filter=
=Offset=
T
T
TE
DRF
Stopped
CH1=10 V
DC   10:1
CH2=1 V
DC   10:1
100 ms/div
(100 ms/div)
NORM:100 kS/s
2
1
=Record Length=
Smoothing :   ON
CH1  :           0.0 V
CH2  :         0.00 V
Main  :      100 K
Zoom  :         2 K
Mode  :   NORMAL
Type   :   EDGE CH1
Delay  :               2.924 ms
Hold off  :                0.2 
µ
s
CH3  :         0.00 V
CH4  :         0.00 V
BW   : FULL
=Trigger=
=Filter=
=Offset=
The tracking servo is not activated.
Check the peripheral circuits at pins 14, 15 and 20 on IC1, and
CNS1A/B.
If the waveform shown in Figure 38-1 appears and soon after
NO DISC appears ?
(2) Tracking system check.
Check the TE waveform at pin 15 on IC1.
A normal jump operation cannot be completed or the beginning of
the track cannot be found.
Check the around pin 20 on IC1.
"Initialization" is possible, but play is not possible ?
Data cannot be read. Check the VCO-PLL system.
"Initialization" is not possible.
Figure 38-1
Figure 38-2
Press the OPEN/CLOSE switch without inserting a disc, and
then try starting the play operation.
(3) Spin system check.
The spin driver circuit is OK.
1. The turntable rotates a little ?
(Waveform drawing Figure 38-2)
Check around pin 22 on IC1, pins 15 and 16 on IC3, and CNS3A/B.
2. The turntable doesn't rotate.
No
Yes
No
Yes
Yes
No
– 39 –
XL-HP700H
T
T
DOUT
Stopped
CH1=2 V
DC   10:1
500 ns/div
1999/04/07  09:25:28
(500 ns/div)
NORM:200 MS/s
1
=Record Length=
Smoothing :   ON
CH1  :        0.00 V
CH2  :        0.00 V
Main  :         1 K
Zoom  :      100
Mode  :   NORMAL
Type   :   EDGE CH1
Delay  :               2.887 ms
Hold off  :                0.2 
µ
s
CH3  :        0.00 V
CH4  :        0.00 V
BW   : FULL
=Trigger=
=Filter=
=Offset=
T
FDO
PDO2
PDO1
Stopped
CH1=500 mV
DC   10:1
CH3=1 V
DC   10:1
CH4=1 V
DC   10:1
500 ms/div
(500 ms/div)
NORM:20 kS/s
1
4
3
=Record Length=
Smoothing :   ON
CH1  :      0.000 V
CH2  :          0.0 V
Main  :      100 K
Zoom  :         2 K
Mode  :   AUTO
Type   :   EDGE CH2
Delay  :                    0.0 ns
Hold off  :                0.2 
µ
s
CH3  :        0.00 V
CH4  :        0.00 V
BW   : FULL
=Trigger=
=Filter=
=Offset=
CH1
  v/DIV
  500 mV
1999/04/05  17:33:17
Is pin 52 (C2F) on IC1 "L" ?
Yes
No
The HF waveform is normal and the time is displayed
normally, but no sound is produced. Or the sound
has dropouts.
(5) Others.
There are too many error flags on a damaged disc which
makes error correction impossible.
Check again using a known good disc.
1. When playing at normal speed.
Check the peripheral circuit at pin 39 (DOUT) on IC1 and
the waveform (Figure 39-2).
If OK, Check the unit.
When a disc is loaded, start play operation.
The HF waveform is normal, but the TOC data cannot be
read.
Check the PDO waveform. (Figure 39-1)
Check around pins 73~78 on IC1.
Figure 39-1
Figure 39-2
– 39 –
XL-HP700H
T
T
DOUT
Stopped
CH1=2 V
DC   10:1
500 ns/div
1999/04/07  09:25:28
(500 ns/div)
NORM:200 MS/s
1
=Record Length=
Smoothing :   ON
CH1  :        0.00 V
CH2  :        0.00 V
Main  :         1 K
Zoom  :      100
Mode  :   NORMAL
Type   :   EDGE CH1
Delay  :               2.887 ms
Hold off  :                0.2 
µ
s
CH3  :        0.00 V
CH4  :        0.00 V
BW   : FULL
=Trigger=
=Filter=
=Offset=
T
FDO
PDO2
PDO1
Stopped
CH1=500 mV
DC   10:1
CH3=1 V
DC   10:1
CH4=1 V
DC   10:1
500 ms/div
(500 ms/div)
NORM:20 kS/s
1
4
3
=Record Length=
Smoothing :   ON
CH1  :      0.000 V
CH2  :          0.0 V
Main  :      100 K
Zoom  :         2 K
Mode  :   AUTO
Type   :   EDGE CH2
Delay  :                    0.0 ns
Hold off  :                0.2 
µ
s
CH3  :        0.00 V
CH4  :        0.00 V
BW   : FULL
=Trigger=
=Filter=
=Offset=
CH1
  v/DIV
  500 mV
1999/04/05  17:33:17
Is pin 52 (C2F) on IC1 "L" ?
Yes
No
The HF waveform is normal and the time is displayed
normally, but no sound is produced. Or the sound
has dropouts.
(5) Others.
There are too many error flags on a damaged disc which
makes error correction impossible.
Check again using a known good disc.
1. When playing at normal speed.
Check the peripheral circuit at pin 39 (DOUT) on IC1 and
the waveform (Figure 39-2).
If OK, Check the unit.
When a disc is loaded, start play operation.
The HF waveform is normal, but the TOC data cannot be
read.
Check the PDO waveform. (Figure 39-1)
Check around pins 73~78 on IC1.
Figure 39-1
Figure 39-2
– 39 –
XL-HP700H
T
T
DOUT
Stopped
CH1=2 V
DC   10:1
500 ns/div
1999/04/07  09:25:28
(500 ns/div)
NORM:200 MS/s
1
=Record Length=
Smoothing :   ON
CH1  :        0.00 V
CH2  :        0.00 V
Main  :         1 K
Zoom  :      100
Mode  :   NORMAL
Type   :   EDGE CH1
Delay  :               2.887 ms
Hold off  :                0.2 
µ
s
CH3  :        0.00 V
CH4  :        0.00 V
BW   : FULL
=Trigger=
=Filter=
=Offset=
T
FDO
PDO2
PDO1
Stopped
CH1=500 mV
DC   10:1
CH3=1 V
DC   10:1
CH4=1 V
DC   10:1
500 ms/div
(500 ms/div)
NORM:20 kS/s
1
4
3
=Record Length=
Smoothing :   ON
CH1  :      0.000 V
CH2  :          0.0 V
Main  :      100 K
Zoom  :         2 K
Mode  :   AUTO
Type   :   EDGE CH2
Delay  :                    0.0 ns
Hold off  :                0.2 
µ
s
CH3  :        0.00 V
CH4  :        0.00 V
BW   : FULL
=Trigger=
=Filter=
=Offset=
CH1
  v/DIV
  500 mV
1999/04/05  17:33:17
Is pin 52 (C2F) on IC1 "L" ?
Yes
No
The HF waveform is normal and the time is displayed
normally, but no sound is produced. Or the sound
has dropouts.
(5) Others.
There are too many error flags on a damaged disc which
makes error correction impossible.
Check again using a known good disc.
1. When playing at normal speed.
Check the peripheral circuit at pin 39 (DOUT) on IC1 and
the waveform (Figure 39-2).
If OK, Check the unit.
When a disc is loaded, start play operation.
The HF waveform is normal, but the TOC data cannot be
read.
Check the PDO waveform. (Figure 39-1)
Check around pins 73~78 on IC1.
Figure 39-1
Figure 39-2
Display

Sharp XL-HP700 (serv.man16) Service Manual ▷ Download

  • DOWNLOAD Sharp XL-HP700 (serv.man16) Service Manual ↓ Size: 313.23 KB | Pages: 4 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sharp XL-HP700 (serv.man16) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp XL-HP700 (serv.man16) System. Information contained in Sharp XL-HP700 (serv.man16) Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.