DOWNLOAD Sharp CD-BA2010 (serv.man8) Service Manual ↓ Size: 433.74 KB | Pages: 12 in PDF or view online for FREE

Model
CD-BA2010 (serv.man8)
Pages
12
Size
433.74 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System / Part 5 - Voltage table, Troubleshooting tables, IC tables
File
cd-ba2010-sm8.pdf
Date

Sharp CD-BA2010 (serv.man8) Service Manual ▷ View online

– 43 –
CD-BA2010H
VOLTAGE
0V
0V
0V
0V
0V
0V
4.6V
4.6V
0V
2.6V
4.9V
4.7V
4.9V
4.6V
0V
0V
4.6V
4.6V
4.6V
0V
0V
0V
4.8V
0V
4.9V
4.8V
0V
0V
0V
0V
0V
4.9V
5.0V
4.9V
4.6V
5.0V
4.9V
4.9V
0V
4.8V
9
8
7
6
5
4
3
2
1
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
40
39
38
37
36
35
34
33
32
31
PIN
NO.
NO.
VOLTAGE
IC701
PIN VOLTAGE
4.9V
4.9V
0V
0V
4.9V
–29.8V
–27.5V
–29.7V
–18.5V
–29.7V
–29.7V
4.9V
4.9V
0V
–34.3V
–20.1V
–16.4V
–12.2V
–16.5V
–14.2V
–31.9V
–31.9V
–18.8V
–18.8V
60
59
58
57
56
55
54
53
52
51
61
74
73
72
71
70
69
68
67
66
65
64
63
62
–31.8V
–31.8V
–31.9V
–20.5V
–20.6V
–27.6V
–27.7V
–23.4V
–23.1V
–20.9V
–34.1V
–18.9V
–28.7V
–26.0V
29.8V
–29.7V
78
77
76
75
79
90
89
88
87
86
85
84
83
82
81
3.0V
1.9V
9.1V
9.1V
0V
3.8V
4.6V
4.5V
4.5V
4.9V
50
49
48
47
46
45
44
43
42
41
–31.9V
–31.9V
–31.9V
–31.9V
–31.9V
–31.9V
–32.0V
–31.9V
–31.9V
–31.9V
100
99
98
97
96
95
94
93
92
91
80
1.9V
4.9V
0V
0V
1.6V
1.6V
2.1V
0V
0V
0V
0V
0V
2.1V
2.1V
2.1V
1.6V
1.6V
1.8V
2.1V
0V
0V
2.1V
4.9V
3.5V
4.9V
1.6V
2.1V
2.1V
0V
0V
0V
0V
0V
0V
0V
4.2V
9
8
7
6
5
4
3
2
1
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
36
35
34
33
32
31
0V
2.1V
2.1V
4.9V
2.1V
41
2.1V
42
40
39
38
37
PIN
NO. VOLTAGE
IC3
0.3V
0.3V
0V
0V
0V
0V
8.4V
0.3V
0V
0V
0V
0V
9
8
7
6
5
4
3
2
1
12
11
10
0V
0V
4.1V
0.1V
0V
4.9V
17
16
15
14
13
18
PIN
NO.
VOLTAGE
IC702
0V
–38.5V
–0.1V
0.1V
0V
40.2V
0V
41.4V
–41.4V
0V
0V
–32.4V
9
8
7
6
5
4
3
2
1
12
11
10
–0.1V
0V
–0.1V
15
14
13
PIN
NO.
VOLTAGE
IC901
0V
–31.3V
–0.1V
0.1V
0V
32.8V
0V
33.9V
33.9V
0V
0V
–32.4V
9
8
7
6
5
4
3
2
1
12
11
10
 –0.1V
0V
–0.1V
15
14
13
PIN
NO.
VOLTAGE
IC902
4.6V (4.9V)
0V (0V)
2.1V (2.1V)
4.5V (4.5V)
2.1V (2.1V)
2.1V (2.1V)
4.6V (4.9V)
2.4V (3.2V)
4.5V (4.8V)
3.9V (0V)
3.3V (1.8V)
3.3V (1.1V)
9
8
7
6
5
4
3
2
1
12
11
10
1.2V (1.2V)
3.5V (2.0V)
1.2V (1.2V)
2.0V (2.0V)
2.7V (0V)
2.1V (0.9V)
0V (1.9V)
0.3V (0.9V)
17
16
15
14
13
20
19
18
2.6V (2.0V)
2.6V (2.0V)
4.5V (4.8V)
3.0V (3.3V)
21
24
23
22
PIN
NO.
VOLTAGE
IC303
13.0V
12.8V
13.0V
13.0V
12.8V
0V
13.0V
18.3V
8
7
6
5
4
3
2
1
PIN
NO.
VOLTAGE
IC562
13.1V
1.3V
13.1V
13.1V
1.3V
0V
13.1V
18.3V
8
7
6
5
4
3
2
1
PIN
NO.
VOLTAGE
IC561
0V
0V
0V
0V
0V
12.1V
0V
8.6V
8
7
6
5
4
3
2
1
PIN
NO.
VOLTAGE
IC903
13.1V
1.4V
13.1V
13.1V
1.4V
0V
13.1V
18.3V
8
7
6
5
4
3
2
1
PIN
NO.
VOLTAGE
IC563
18.3V
0V
5.0V
3
2
1
PIN
NO.
VOLTAGE
IC801
18.7V
0V
10V
3
2
1
PIN
NO.
VOLTAGE
IC802
16.6V
5.6V
0V
3
2
1
PIN
NO.
VOLTAGE
Q823
0V
3.0V
3.3V
3.3V
0V
0V
0V
1.6V
1.6V
1.6V
1.6V
1.6V
1.6V
1.6V
1.7V
4.7V
0V
1.6V
0V
2.4V
3.3V
0V
1.6V
3.0V
0V
3.3V
0V
0.7V
0V
0V
0V
0V
0V
1.6V
3.3V
0V
1.6V
1.6V
1.6V
1.6V
0V
2.1V
2.1V
0V
3.3V
3.5V
3.3V
3.3V
3.3V
1.6V
1.6V
1.5V
0V
1.5V
3.0V
3.3V
1.8V
3.0V
0V
0V
0V
1.7V
2.4V
0V
9
8
7
6
5
4
3
2
1
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
PIN
NO. VOLTAGE
51
64
63
62
61
60
59
58
57
56
55
54
53
52
3.4V
0V
0V
3.2V
0V
0V
0V
0V
0V
4.8V
4.9V
4.9V
4.6V
0V
4.9V
0V
68
67
66
65
69
80
79
78
77
76
75
74
73
72
71
70
IC2
0V (0V)
0V (0V)
0V (0V)
0V (0V)
0.5V (0.5V)
1.9V (1.9V)
0V (0V)
0.6V (0.6V)
3.3V (3.3V)
3.3V (3.3V)
0V (0V)
0V (0V)
9
8
7
6
5
4
3
2
1
12
11
10
0V (0V)
6.7V (6.7V)
4.0V (4.0V)
3.3V (3.3V)
0.6V (0.6V)
0V (0V)
0V (0V)
0V (0V)
17
16
15
14
13
20
19
18
1.9V (1.9V)
0.5V (0.5V)
0V (0V)
0V (0V)
21
24
23
22
PIN
NO.
VOLTAGE
IC101
0.1V (9.9V)
2.9V (2.9V)
2.4V (2.4V)
0V (0V)
0V (0V)
0V (0V)
4.8V (4.9V)
4.2V (0V)
3.3V (0V)
0V (3.9V)
5.1V (5.1V)
2.2V (0V)
9
8
7
6
5
4
3
2
1
12
11
10
0V (2.4V)
5.0V (5.0V)
0V (0V)
2.3V (0V)
5.0V (5.0V)
0.6V (4.8V)
0.8V (1.8V)
2.0V (1.0V)
17
16
15
14
13
20
19
18
0V (0V)
2.5V (3.0V)
21
22
PIN
NO.
VOLTAGE
IC302
1.6V
0V
1.6V
1.6V
1.6V
0V
0V
1.6V
3.3V
0V
0V
0V
0V
1.6V
1.6V
1.6V
1.6V
1.6V
1.6V
2.6V
1.6V
1.6V
1.6V
1.6V
1.6V
0V
0V
0V
1.6V
3.3V
9
8
7
6
5
4
3
2
1
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
PIN
NO. VOLTAGE
IC1
5.0V
0V
5.0V
3
2
1
PIN
NO.
VOLTAGE
IC703
0V (0V)
2.6V (2.6V)
2.6V(2.6V)
2.6V (2.6V)
5.2V (5.2V)
0V (0V)
2.6V (2.6V)
0V (0V)
0V (0V)
0V (0V)
0V (0V)
2.6V (2.6V)
9
8
7
6
5
4
3
2
1
12
11
10
0V (0V)
2.5V (2.5V)
5.2V (5.2V)
0V (0V)
0V (0V)
0V (0V)
0V (0V)
0V (0V)
17
16
15
14
13
20
19
18
2.9V (0V)
0V (0V)
0V (0V)
0V (0V)
21
24
23
22
PIN
NO.
VOLTAGE
ICT21
CD-BA2010H
– 44 –
Parts code
1.
CD optical pickup Lens cleaner disc
UDSKA0004AFZZ
TROUBLE SHOOTING
When the CD does not function
When the CD section does not operate when the objective lens of the optical pickup is dirty, this section may not operate. Clean
the objective lens, and check the playback operation. When this section does not operate even after the above step is taken, check
the following items.
Remove the cabinet and follow the trouble shooting instructions.
"Track skipping and/or no TOC (Table Of Contents) may be caused by build up of dust other foreign matter on the laser pickup
lens. Before attempting any adjustment make certain that the lens is clean. If not, clean it as mentioned below."
Turn the power off.
Gently clean the lens with a lens cleaning tissue and a small amount of isopropyl alcohol.
Do not touch the lens with the bare hand.
HOW TO USE
CAUTION
Cleaner Fluid
Cleaner disc
Using the brush in the cleaner cap, apply 1 or 2 drops of the cleaning fluid to the 
brush on the CD cleaner disc which has the mark next to it.
Place the CD cleaner disc onto the CD disc tray with the brush side down, then 
press the play button.
You will hear music for about 20 seconds and the CD player will automatically stop. 
If it continuous to turn, press the stop button.
1.
2.
3.
The CD lens cleaner should be effective for 30-50 operations, however if the 
brushes become worn out earlier then please the cleaner disc.
If the CD cleaner brushes become very wet then wipe off any excess fluid with a soft 
cloth.
Do not drink the cleaner fluid or allow it to come in contact with the eyes. In the 
event of this happening then drink and / or rinse with clean water and seek medical 
advice.
The CD cleaner disk must not be used on car CD players or on computer CD ROM 
drives.
All rights reserved. Unauthorized duplicating, broadcasting and renting this product 
is prohibited by law.
(1) Check the power to IC2 (LC78641E), the presence of the clock signal (16.93 MHz) and the status of the RESET terminal
     (pin 71 on IC2).
(2) Did the pickup move to the PICKUP-IN Switch (SW4) position?
If (1) and (2)  are OK, check the system microcomputer (especially the communication line with the DSP).
2. Pressing the CD operation key is accepted, but playback does not occur.
(1) Focus-HF system check
(2) Tracking system check
(3) Spin system check
(4) PLL system check
(5) Others
1. "E-CD01" is displayed.
When a CD cannot be played
– 45 –
CD-BA2010H
If the level is not normal, check around pins 27~29 on IC1.
1. Is focus servo activated? (Waveform drawing 45-2)
 Pins 1~11 on IC1
Check the laser diode driver Q3 peripheral circuit.
Focus error circuit (pins 20 and 21 on IC1)
When a disc is loaded, start playback operation.
2. Does DRF change from "L" to "H"?
Is the disc rotating?
3. Is the HF waveform normal?  (Waveform drawing 45-3)
Check the spin system.
If the disc is spinning and a HF waveform is generated,
DRF will go H.
Figure 45-1
Check the laser diode driver Q3 peripheral circuit.
(1) Focus-HF system check
Although a CD is inserted and the cover is closed, "NO
DISC" is displayed.
1. Did the pickup move to the PICKUP-IN Switch (SW4)
position?
Sled motor (M2)
Press the OPEN/CLOSE switch (SW1) without inserting a
disc, and try starting the playback operation.
2. Does the focus (lens) move up and down?
    (Waveform drawing 45-1).
Check the focus peripheral circuit.
3. Is the laser lit?
Spindle motor (M1).
4. Is the turntable rotating?
Figure 45-2
Figure 45-3
Yes
Yes
Yes
No
No
No
No
No
No
No
Yes
Yes
No
T
FDO
TDO
Stopped
CH1=500mV
DC   10:1
CH3=500mV
DC   10:1
500ms/div
(500ms/div)
NORM:20kS/s
1
3
=Record Length=
Smoothing :   ON
CH1  :      0.000V
CH2  :          0.0V
Main  :      100K
Zoom  :         2K
Mode  :   AUTO
Type   :   EDGE CH1
Delay  :                   0.0ns
Hold off  :                0.2us
CH3  :      0.000V
CH4  :        0.00V
BW   : FULL
=Trigger=
=Filter=
=Offset=
CH1
  v/DIV
  500mV
T
FDO
DRF
TE
Stopped
CH1=500mV
DC   10:1
CH2=10V
DC   10:1
CH3=1V
DC   10:1
500ms/div
(500ms/div)
NORM:20kS/s
1
2
3
=Record Length=
Smoothing :   ON
CH1  :      0.000V
CH2  :          0.0V
Main  :      100K
Zoom  :         2K
Mode  :   AUTO
Type   :   EDGE CH1
Delay  :                   0.0ns
Hold off  :                0.2us
CH3  :        0.00V
CH4  :        0.00V
BW   : FULL
=Trigger=
=Filter=
=Offset=
-3div
-1div
0div
+1div
+3div
CH  Position  To
CH2
  Position
  0.20div
Vp-p=1.0V~1.3V
0.5mV/div,0.5
µ
sec/div
CD-BA2010H
– 46 –
The tracking servo is not activated.
Check the peripheral circuits at pins 18 and 19 on IC1, pin 23 on
IC2, and CNS1A/B.
If the waveform shown in Figure 46-1 appears and soon after
NO DISC appears.
(2) Tracking system check
Check the TE waveform at pin 18 on IC1.
A normal jump operation cannot be completed or the beginning of
the track cannot be found.
Check the around pin 23 on IC2.
"Initialization" is possible, but play is not possible.
Data cannot be read. Check the VCO-PLL system.
"Initialization" is not possible.
Figure 46-1
Figure 46-2
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 46-2)
Check around pin 25 on IC2, pins 15 and 16 on IC3, and CNS3A/B.
2. The turntable doesn't rotate.
T
T
TE
DRF
Stopped
CH1=10V
DC   10:1
CH2=1V
DC   10:1
100ms/div
(100ms/div)
NORM:100kS/s
2
1
=Record Length=
Smoothing :   ON
CH1  :           0.0V
CH2  :         0.00V
Main  :      100K
Zoom  :         2K
Mode  :   NORMAL
Type   :   EDGE CH1
Delay  :               2.924ms
Hold off  :                0.2us
CH3  :         0.00V
CH4  :         0.00V
BW   : FULL
=Trigger=
=Filter=
=Offset=
T
T
FDO
SPDO
Stopped
CH1=200mV
DC   10:1
CH2=500mV
DC   10:1
500ms/div
1999/04/07  09:51:15
(500ms/div)
NORM:20kS/s
2
1
=Record Length=
Smoothing :   ON
CH1  :      0.000V
CH2  :      0.000V
Main  :      100K
Zoom  :         2K
Mode  :   NORMAL
Type   :   EDGE CH2
Delay  :               2.924ms
Hold off  :                0.2us
CH3  :        0.00V
CH4  :        0.00V
BW   : FULL
=Trigger=
=Filter=
=Offset=
No
Yes
No
Yes
Yes
No
Page of 12
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Sharp CD-BA2010 (serv.man8) Service Manual ▷ Download

  • DOWNLOAD Sharp CD-BA2010 (serv.man8) Service Manual ↓ Size: 433.74 KB | Pages: 12 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sharp CD-BA2010 (serv.man8) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp CD-BA2010 (serv.man8) System. Information contained in Sharp CD-BA2010 (serv.man8) 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.