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Model
CD-BA1500 (serv.man9)
Pages
14
Size
736.1 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System / Part 4 - Voltage table, Troubleshooting tables, IC tables
File
cd-ba1500-sm9.pdf
Date
PREV: Sharp CD-BA1500 (serv.man8) Service Manual

Sharp CD-BA1500 (serv.man9) Service Manual ▷ View online

– 41 –
CD-BA1500H
VOLTAGE
0V
2.72V
2.6V
2.59V
5.2V
0V
2.55V 
0V
0V
0V 
0V
2.66V
9
8
7
6
5
4
3
2
1
12
11
10
0V
2.56V
5.21V 
0V 
0V
1.4V 
1.7V 
4.6V 
17
16
15
14
13
20
19
18
4.3V 
0V 
21
22
PIN
NO.
VOLTAGE
ICT21
0V 
0V
23
24
0V(0V)
8.5V(0V)
0V(0V)
0V(0V)
2.6V(0V)
2.0V(1.1V)
0V(0V)
0V(0V)
8
7
6
5
4
3
2
1
PIN
NO.
VOLTAGE
FE301
0V
0V
0V
0V
0V
0V
4.8V
4.89V
0V
2.06V
2.38V
4.84V
0.87V
5.0V
5.0V
5.0V
5.0V
0V
5.0V
0V
1.2V
0V
1.4V
0V
2.3V
4.44V
0V
0.3V
0V
0V
0V
5.1V
5.1V
5.1V
4.9V
5.0V
4.9V
4.9V
0V
5.0V
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
40
39
38
37
36
35
34
33
32
31
PIN
NO.
NO.
VOLTAGE
IC701
PIN VOLTAGE
4.29V
4.29V
4.29V
4.29V
4.29V
–27.7V
–25.9V
–22.1V
–20.4V
–27.7V
–27.7V
4.29V
0V
0V
–27.8V
–27.8V
0V
0V
–27.7V
–27.7V
–27.7V
–27.7V
–24.1V
–24.4V
60
59
58
57
56
55
54
53
52
51
61
74
73
72
71
70
69
68
67
66
65
64
63
62
–25.7V
–25.8V
–25.8V
2.58V
2.38V
–24.0V
–25.9V
–22.2V
–22.2V
–22.3V
–27.8V
–27.7V
–27.7V
–27.7V
–20.3V
–20.3V
78
77
76
75
79
90
89
88
87
86
85
84
83
82
81
4.29V
1.7V
8.0V
7.9V
8.0V
3.8V
4.89V
4.89V
4.89V
4.29V
50
49
48
47
46
45
44
43
42
41
–25.7V
–25.7V
–25.7V
–25.7V
–25.7V
–25.7V
–25.7V
–25.7V
–25.7V
–25.7V
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
0V
–32.9V
0V
0V
0V
34.4V
0V
35.4V
–35.4V
0V
0V
–34.0V
9
8
7
6
5
4
3
2
1
12
11
10
0V
0V
0V
15
14
13
PIN
NO.
VOLTAGE
IC901
19.4V
0V
5.76V
3
2
1
PIN
NO.
VOLTAGE
IC852
19.4V
0V
5V
3
2
1
PIN
NO.
VOLTAGE
IC851
19.41V
0V
10V
3
2
1
PIN
NO.
VOLTAGE
IC841
5.0V
0V
5.0V
3
2
1
PIN
NO.
VOLTAGE
IC704
0V
0V
0V
0V
0V
–11.0V
0V
5.58V
8
7
6
5
4
3
2
1
PIN
NO.
VOLTAGE
IC702
0V
0V
0V
0V
0V
–11.0V
0V
5.58V
8
7
6
5
4
3
2
1
PIN
NO.
VOLTAGE
IC703 
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
5.0V
5.0V
0V 
0V
0V
5.0V
5.0V
5.0V
5.0V
5.0V
5.0V
5.0V
9
8
7
6
5
4
3
2
1
12
11
10
5.0V
5.0V
5.0V
5.0V
5.0V
5.0V
5.0V
5.0V
17
16
15
14
13
20
19
18
5.0V
5.0V
10.0V
0V
21
24
23
22
PIN
NO.
VOLTAGE
IC401
0.1V (9.9V)
4.6V (4.7V)
2.4V (2.4V)
0V (0V)
0V (0V)
0V (0V)
4.8V (4.9V)
4.2V (0V)
3.3V (0V)
3.4V (0V)
4.6V (4.9V)
2.2V (0V)
9
8
7
6
5
4
3
2
1
12
11
10
0V (2.4V)
4.6V (4.9V)
0V (0V)
2.3V (0V)
4.6V (4.9V)
0.8V (4.9V)
0.8V (4.9V)
1.1V (0V)
17
16
15
14
13
20
19
18
0V (0V)
2.5V (3.0V)
21
22
PIN
NO.
VOLTAGE
IC302
4.6V (4.9V)
0V (0V)
2.1V (2.1V)
4.5V (4.8V)
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)
21
22
PIN
NO.
VOLTAGE
IC303
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
4.5V (4.8V)
3.0V (3.3V)
23
24
CD-BA1500H
– 42 –
WAVEFORMS OF CD CIRCUIT
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
1
IC2  24
2
IC2  23
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
1
IC2  24
3
IC2  72
4
IC1  18 ,
IC2  16
Vp-p=1.0V~1.3V
0.5mV/div,0.5
µ
sec/div
5
IC1  27
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=
3
IC2  72
4
IC1  18 ,
IC2  16
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=
1
IC2  24
6
IC2  25
T
FDO
PDO2
PDO1
Stopped
CH1=500mV
DC   10:1
CH3=1V
DC   10:1
CH4=1V
DC   10:1
500ms/div
(500ms/div)
NORM:20kS/s
1
4
3
=Record Length=
Smoothing :   ON
CH1  :      0.000V
CH2  :          0.0V
Main  :      100K
Zoom  :         2K
Mode  :   AUTO
Type   :   EDGE CH2
Delay  :                    0.0ns
Hold off  :                0.2us
CH3  :        0.00V
CH4  :        0.00V
BW   : FULL
=Trigger=
=Filter=
=Offset=
CH1
  v/DIV
  500mV
1999/04/05  17:33:17
1
IC2  24
7
IC2   1
8
IC2   2
T
T
DOUT
Stopped
CH1=2V
DC   10:1
500ns/div
1999/04/07  09:25:28
(500ns/div)
NORM:200MS/s
1
=Record Length=
Smoothing :   ON
CH1  :        0.00V
CH2  :        0.00V
Main  :         1K
Zoom  :      100
Mode  :   NORMAL
Type   :   EDGE CH1
Delay  :               2.887ms
Hold off  :                0.2us
CH3  :        0.00V
CH4  :        0.00V
BW   : FULL
=Trigger=
=Filter=
=Offset=
9
IC2  37
T
T
DATA
DATACK
LRSY
Stopped
CH1=2V
DC   10:1
CH2=2V
DC   10:1
CH3=2V
DC   10:1
5us/div
(5us/div)
NORM:100kS/s
1
2
3
=Record Length=
Smoothing :   ON
CH1  :        0.00V
CH2  :        0.00V
Main  :        5K
Zoom  :     100
Mode  :   AUTO
Type   :   EDGE CH3
Delay  :                    0.0ns
Hold off  :                0.2us
CH3  :        0.00V
CH4  :        0.00V
BW   : FULL
=Trigger=
=Filter=
=Offset=
CH3
  v/DIV
       2 V
1999/04/05  20:50:17
10
IC2   57
IC2  58
IC2  59
11
12
T
T
EFBL
FDO
TE
Stopped
CH1=500mV
DC   10:1
CH2=200mV
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  :      0.000V
Main  :     100K
Zoom  :       2k
Mode  :   SINGLE
Type   :   EDGE CH1
Delay  :                    0.0ns
Hold off  :                0.2us
CH3  :        0.00V
CH4  :        0.00V
BW   : FULL
=Trigger=
=Filter=
=Offset=
CH2
  v/DIV
   200mV
1999/04/05  20:26:47
1
IC2  24
4
IC1  18 ,
IC2  16
IC1  13 ,
IC2  22
13
– 43 –
CD-BA1500H
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 tum, 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 rines 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 
(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
CD-BA1500H
– 44 –
If the level is not normal, check around pins 27~29 on IC1.
1. Is focus servo activated? (Waveform drawing 44-2)
 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 44-3)
Check the spin system.
If the disc is spinning and a HF waveform is generated,
DRF will go H.
Figure 44-1
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 44-1).
Check the focus peripheral circuit.
3. Is the laser lit?
Spindle motor (M1).
4. Is the turntable rotating?
Figure 44-2
Figure 44-3
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
Page of 14
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  • DOWNLOAD Sharp CD-BA1500 (serv.man9) Service Manual ↓ Size: 736.1 KB | Pages: 14 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sharp CD-BA1500 (serv.man9) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp CD-BA1500 (serv.man9) System. Information contained in Sharp CD-BA1500 (serv.man9) 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.

Found More:

CD-BA1500 (serv.man9) Service Manuals

Preview DownloadPagesSize
CD-BA1500 (serv.man5) Video clip detailing how to re-install the 3 CD changer mechanism Service Manual 4.04 MB
CD-BA1500 (serv.man6) Part 1 - Text Service Manual 19 722.33 KB
CD-BA1500 (serv.man7) Part 2 - Notes on diagrams, Block diagrams, Schematic diagrams Service Manual 14 774.73 KB
CD-BA1500 (serv.man8) Part 3 - Printed wiring board assemblies Service Manual 7 741.03 KB
CD-BA1500 (serv.man10) Including circuit diagrams Service Manual 68 3.24 MB
CD-BA1500 (serv.man2) Quick start guide User Manual / Operation Manual 4 167.85 KB
CD-BA1500 (serv.man3) User Manual / Operation Manual 32 1.81 MB
CD-BA1500 part (from ) User Manual / Operation Manual 1 56.47 KB
CD-BA1500 (serv.man4) Service Manual / Parts Guide 14 359.29 KB
CD-BA1500 (serv.man11) Service Manual / Specification 1 8.8 KB
CD-BA1500 (serv.man22) Tape errors due to low surge supply to the mechanism. Service Manual / Technical Bulletin 1 79.44 KB
CD-BA1500 (serv.man21) Correction to printing error in (Belt). Service Manual / Technical Bulletin 1 66.4 KB
CD-BA1500 (serv.man20) Part setting for separate items in cassette mechansim. Service Manual / Technical Bulletin 1 69.32 KB
CD-BA1500 (serv.man19) Fly wheels assigned as service parts. Service Manual / Technical Bulletin 1 66.95 KB
CD-BA1500 (serv.man18) Change of power IC (IC901) Service Manual / Technical Bulletin 1 50.71 KB
CD-BA1500 (serv.man17) Addition of screws to CD player to prevent seizure Service Manual / Technical Bulletin 2 81.8 KB
CD-BA1500 (serv.man16) Parts assigned as service parts Service Manual / Technical Bulletin 1 41.4 KB
CD-BA1500 (serv.man15) Correction to the (crystal 4.19MHz and 16.9344MHz) Service Manual / Technical Bulletin 1 38.15 KB
CD-BA1500 (serv.man14) Tape errors appear on the display due to various reasons Service Manual / Technical Bulletin 3 159.72 KB
CD-BA1500 (serv.man13) Noise from speakers at high volume levels Service Manual / Technical Bulletin 2 59.08 KB
CD-BA1500 (serv.man12) Tape deck Service Manual / Technical Bulletin 2 25.51 KB

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