DOWNLOAD Sharp CD-DP2500 (serv.man27) Service Manual ↓ Size: 5.13 MB | Pages: 74 in PDF or view online for FREE

Model
CD-DP2500 (serv.man27)
Pages
74
Size
5.13 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System
File
cd-dp2500-sm27.pdf
Date
PREV: Sharp CD-DP2500 (serv.man26) Service Manual

Sharp CD-DP2500 (serv.man27) Service Manual ▷ View online

– 45 –
CD-DP2500H
Figure 45 WIRING SIDE OF P.W.BOARD (8/8)
7
8
9
10
11
12
CD LOADING MOTOR
PWB-F
1
6
1
2
3
4
5
6
BI4
M3
T/T UP/DOWN
MOTOR
RD
WH
BK
WH
BK
WH
–
+
SW3
DISC
NUMBER
SW2
CLAMP
SW1
OPEN/
CLOSE
MM1
TAPE MOTOR
B
A
- +
1
1
2
3
4
4
5
6
7
8
9
10
11
12
13
1
13
CNP702
SOLM
SOLENOIDE
SOLM
SOLENOIDE
TAPE MECHANISM PWB-E
TAPE MECHANISM
ASSEMBLY(210)
P40  5 - G
TO DISPLAY PWB
B R
COLOR  TABLE
R D ( R )
O R
Y L
G R
B L
V L
G Y
W H ( W )
B K
P K
BROWN
RED
ORANGE
YELLOW
GREEN
BLUE
VIOLET
GRAY
WHITE
BLACK
PINK
TAPE 1
PLAYBACK HEAD
TAPE 2
 ERASE HEAD
RECORD/PLAYBACK
HEAD
FC702
CNS4
PH
SW
SW
SW
PH
RD
WH
YL
WH
BK
BK
PK
RD
WH
YL
BL
BK
BK
BL
WH
WH
BK
PK
WH
CNP102
CNS102
CNP101
TO MAIN PWB
CNS101
1 2 3 4 5 6 7
TO MAIN PWB
P39 10-G
P39 11-G
GY
BR
GY
2
3
1
CD-DP2500H
– 46 –
VOLTAGE
0V
0V
0V
0V
0V
0V
4.6V
4.6V
0V
2.6V
4.9V
4.7V
4.8V
4.8V
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
6.0V
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
–27.5V
–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
3.6V
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
0V
8.6V
4.3V
4.3V
4.3V
4.3V
0V
4.3V
4.3V
4.3V
4.3V
0V
9
8
7
6
5
4
3
2
1
12
11
10
8.6V
8.6V
14
13
PIN
NO.
VOLTAGE
IC201
2.8V (0.2V)
0V (0V)
0.8V (0V)
1.5V (0V)
3.6V (0.4V)
1.5V (0V)
3.6V (0.4V)
3.5V (0.3V)
3.6V (0.3V)
9
8
7
6
5
4
3
2
1
PIN
NO.
VOLTAGE
IC301
18.2V
0V
5.0V
3
2
1
PIN
NO.
VOLTAGE
IC804
5.0V
0V
5.0V
3
2
1
PIN
NO.
VOLTAGE
IC704
17.3V
0V
5V
3
2
1
PIN
NO.
VOLTAGE
IC801
16.6V
5.6V
0V
3
2
1
PIN
NO.
VOLTAGE
Q823
13.0V
12.8V
13.0V
130V
12.8V
0V
13.0V
18.3V
8
7
6
5
4
3
2
1
PIN
NO.
VOLTAGE
IC601
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
IC603 
5V
5V
5V
5V
5V
0V
5V
10.0V
8
7
6
5
4
3
2
1
PIN
NO.
VOLTAGE
IC802 
13.1V
1.3V
13.1V
13.1V
1.3V
0V
13.2V
18.3V
8
7
6
5
4
3
2
1
PIN
NO.
VOLTAGE
IC602
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
4.6V
4.6V
4.6V
4.6V
4.6V
0V
2.6V
0V
4.6V
4.8V
0V
0V
0V
3.9V
4.8V
4.7V
2.7V
3.9V
4.9V
4.9V
4.9V
4.4V
4.6V
4.4V
4.2V
4.5V
4.3V
4.9V
4.9V
3.9V
2.7V
4.9V
2.7V
0V
0V
4.8V
0V
0V
4.7V
2.8V
2.6V
2.6V
2.6V
2.6V
0.6V
0.6V
2.6V
2.6V
2.6V
2.6V
2.6V
0V
4.6V
4.6V
4.6V
4.5V
4.5V
4.2V
4.6V
4.6V
4.3V
4.7V
4.4V
4.4V
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
0V
0V
0V
0V
0V
4.3V
4.4V
4.4V
4.4V
2.8V
9.9V
4.3V
1.3V
0V
0V
4.4V
68
67
66
65
69
80
79
78
77
76
75
74
73
72
71
70
IC501
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
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 (1.6V)
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
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
7.8V
7.8V
0V
0V
0V
0V
7.8V
7.8V
12.3V
0V
0V
0V
9
8
7
6
5
4
3
2
1
12
11
10
1.6V
1.0V
1.9V
1.6V
0V
0.5V
17
16
15
14
13
18
PIN
NO.
VOLTAGE
IC702
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
7.8V
0V
0V
0V
0V
0V
7.8V
7.8V
7.8V
7.8V
0V
2.8V
9
8
7
6
5
4
3
2
1
12
11
10
1.3V
0.5V
1.3V
0V
0V
5.0V
17
16
15
14
13
18
PIN
NO.
VOLTAGE
IC703
0V
–25.7V
0V
0V
0V
25.7V
0V
26.9V
–26.9V
0V
0V
–25.6V
9
8
7
6
5
4
3
2
1
12
11
10
–0.1V
0V
–0.1V
15
14
13
PIN
NO.
VOLTAGE
IC902
– 47 –
CD-DP2500H
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
CD-DP2500H
– 48 –
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
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