Sharp CD-DP2400E (serv.man18) Service Manual ▷ View online
– 37 –
CD-DP2400E
7
8
9
10
11
12
BI4
M3
T/T UP/DOWN
LOADING
MOTOR
SW3
DISC
NUMBER
SW2
CLAMP
SW1
OPEN/
CLOSE
CNS4
FC702
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 MECHANISM PWB-E
TAPE MECHANISM
ASSEMBLY(210)
ASSEMBLY(210)
CD LOADING MOTOR
PWB-F
PWB-F
1
6
1
2
3
4
5
6
RD
WH
BK
WH
BK
WH
–
+
CNP702
P32 4,5-G
TO DISPLAY PWB
1
2
3
4
5
6
7
8
9
10
11
12
13
1
13
TAPE
MOTOR
SOLENOID
SOLENOID
TAPE 1
PLAYBACK HEAD
TAPE 2
ERASE HEAD
RECORD/PLAYBACK
HEAD
CNP101
P31 10-G
TO MAIN PWB
P31 11-G
TO MAIN PWB
CNP102
BL
WH
YL
BK
PK
WH
BK
BK
BK
RD
WH
WH
WH
PK
BK
7 6 5 4 3 2 1
GR
GR
GR
2
1
3
BL
YL
WH
RD
Figure 37 WIRING SIDE OF P.W.BOARD (8/8)
CD-DP2400E
– 38 –
VOLTAGE
0V
1.3V
0V
0V
0V
0.6V
4.58V
4.75V
4.96V
0V
2.31V
4.71V
3.28V
4.78V
0V
0V
4.78V
0V
4.78V
0V
4.95V
0V
4.77V
0.52V
0V
5.1V
0V
0V
0V
1.4V
1.2V
4.96V
4.96V
4.96V
4.76V
4.97V
4.96V
0.64V
0V
4.87V
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
5.03V
5.03V
5.03V
5.03V
5.03V
–34.70V
–34.10V
–34.10V
–22.85V
–18.68V
–22.92V
5.03V
0V
0V
0V
–13.71V
–12.85V
–9.61V
–13.02V
–13.27V
–29.16V
–20.93V
–35.0V
–23.00V
60
59
58
57
56
55
54
53
52
51
61
74
73
72
71
70
69
68
67
66
65
64
63
62
–32.64V
–32.64V
–32.67V
–22.23V
–22.52V
–20.96V
–11.58V
–22.39V
–23.52V
–21.34V
–34.40V
–24.61V
–28.24V
–26.51V
–28.64V
–23.59V
78
77
76
75
79
90
89
88
87
86
85
84
83
82
81
5.02V
0V
13.68V
13.68V
13.68V
3.73V
4.75V
4.75V
4.75V
4.96V
50
49
48
47
46
45
44
43
42
41
–32.70V
–32.70V
–32.70V
–32.70V
–32.80V
–32.80V
–32.64V
–32.90V
–32.90V
–32.80V
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
19.13V
0.58V
5.61V
3
2
1
PIN
NO.
VOLTAGE
IC804
5.0V
0V
5.0V
3
2
1
PIN
NO.
VOLTAGE
IC704
20.01V
0V
5.01V
3
2
1
PIN
NO.
VOLTAGE
IC801
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
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
20.06V
0V
10.01V
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
0V
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
0.1V
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
5.01V
5.04V
5.04V
5.04V
5.06V
2.85V
2.85V
0V
0V
5.27V
5.04V
0V
0V
4.08V
5.06V
5.07V
2.8V
4.08V
5.05V
5.06V
5.06V
4.97V
5.07V
4.98V
5.23V
5.06V
5.28V
5.05V
5.05V
4.09V
0V
5.04V
2.8V
0V
5.05V
0V
0V
0V
0V
2.85V
2.85V
2.85V
0V
2.85V
2.3V
2.3V
2.85V
2.85V
2.85V
2.85V
2.85V
0V
4.71V
5.01V
4.89V
5.02V
4.89V
5.33V
5.07V
5.07V
5.16V
5.08V
5.07V
5.06V
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
5.05V
5.06V
5.05V
5.14V
3.54V
9.93V
5.06V
1.4V
0V
0V
5.06V
68
67
66
65
69
80
79
78
77
76
75
74
73
72
71
70
IC501
0V
0V
0V
0V
0.68V
2.06V
1.39V
0.67V
3.41V
3.37V
0V
0V
9
8
7
6
5
4
3
2
1
12
11
10
0V
6.82V
4.13V
3.39V
0.66V
0V
0.9V
0V
17
16
15
14
13
20
19
18
2.05V
0.64V
0V
0V
21
24
23
22
PIN
NO.
VOLTAGE
IC101
5.21V
0V
2.15V
5.16V
2.16V
2.16V
5.21V
2.99V
5.16V
4.42V
4.0V
4.0V
9
8
7
6
5
4
3
2
1
12
11
10
1.28V
4.09V
1.24V
2.16V
2.4V
2.3V
0V
0.47V
17
16
15
14
13
20
19
18
2.5V
2.5V
5.16V
3.64V
21
24
23
22
PIN
NO.
VOLTAGE
IC303
4.99V
5.01V
0V
0V
0V
5.01V
4.99V
5.01V
4.99V
4.99V
4.99V
4.99V
9
8
7
6
5
4
3
2
1
12
11
10
4.99V
4.99V
4.99V
4.99V
5.01V
4.99V
4.99V
5.0V
17
16
15
14
13
20
19
18
5.0V
5.0V
9.92V
0V
21
24
23
22
PIN
NO.
VOLTAGE
IC401
0V
0V
2.5V
0V
0V
0V
5.09V
4.77V
4.01V
4.1V
5.22V
2.52V
9
8
7
6
5
4
3
2
1
12
11
10
0V
5.22V
0V
2.59V
5.23V
0.77V
0.77V
7.48V
17
16
15
14
13
20
19
18
0V
2.58V
21
22
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
–21.55V
0V
0V
0V
22.96V
0V
23.99V
–23.99V
0V
0V
–22.73V
9
8
7
6
5
4
3
2
1
12
11
10
0V
0V
0V
15
14
13
PIN
NO.
VOLTAGE
IC902
0V
–26.56V
0V
0V
0V
27.72V
0V
28.38V
–28.38V
0V
0V
–27.14V
9
8
7
6
5
4
3
2
1
12
11
10
0V
0V
0V
15
14
13
PIN
NO.
VOLTAGE
IC901
– 39 –
CD-DP2400E
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
CH2 : 0.0V
Main : 100K
Zoom : 2K
Zoom : 2K
Mode : AUTO
Type : EDGE CH1
Delay : 0.0ns
Hold off : 0.2us
Type : EDGE CH1
Delay : 0.0ns
Hold off : 0.2us
CH3 : 0.000V
CH4 : 0.00V
CH4 : 0.00V
BW : FULL
=Trigger=
=Filter=
=Offset=
CH1
v/DIV
500mV
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
CH2 : 0.0V
Main : 100K
Zoom : 2K
Zoom : 2K
Mode : AUTO
Type : EDGE CH1
Delay : 0.0ns
Hold off : 0.2us
Type : EDGE CH1
Delay : 0.0ns
Hold off : 0.2us
CH3 : 0.00V
CH4 : 0.00V
CH4 : 0.00V
BW : FULL
=Trigger=
=Filter=
=Offset=
-3div
-1div
0div
+1div
+3div
CH Position To
CH2
Position
0.20div
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
CH2 : 0.00V
Main : 100K
Zoom : 2K
Zoom : 2K
Mode : NORMAL
Type : EDGE CH1
Delay : 2.924ms
Hold off : 0.2us
Type : EDGE CH1
Delay : 2.924ms
Hold off : 0.2us
CH3 : 0.00V
CH4 : 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
CH2 : 0.000V
Main : 100K
Zoom : 2K
Zoom : 2K
Mode : NORMAL
Type : EDGE CH2
Delay : 2.924ms
Hold off : 0.2us
Type : EDGE CH2
Delay : 2.924ms
Hold off : 0.2us
CH3 : 0.00V
CH4 : 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
CH2 : 0.0V
Main : 100K
Zoom : 2K
Zoom : 2K
Mode : AUTO
Type : EDGE CH2
Delay : 0.0ns
Hold off : 0.2us
Type : EDGE CH2
Delay : 0.0ns
Hold off : 0.2us
CH3 : 0.00V
CH4 : 0.00V
CH4 : 0.00V
BW : FULL
=Trigger=
=Filter=
=Offset=
CH1
v/DIV
500mV
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
CH2 : 0.00V
Main : 1K
Zoom : 100
Zoom : 100
Mode : NORMAL
Type : EDGE CH1
Delay : 2.887ms
Hold off : 0.2us
Type : EDGE CH1
Delay : 2.887ms
Hold off : 0.2us
CH3 : 0.00V
CH4 : 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
CH2 : 0.00V
Main : 5K
Zoom : 100
Zoom : 100
Mode : AUTO
Type : EDGE CH3
Delay : 0.0ns
Hold off : 0.2us
Type : EDGE CH3
Delay : 0.0ns
Hold off : 0.2us
CH3 : 0.00V
CH4 : 0.00V
CH4 : 0.00V
BW : FULL
=Trigger=
=Filter=
=Offset=
CH3
v/DIV
2 V
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
CH2 : 0.000V
Main : 100K
Zoom : 2k
Zoom : 2k
Mode : SINGLE
Type : EDGE CH1
Delay : 0.0ns
Hold off : 0.2us
Type : EDGE CH1
Delay : 0.0ns
Hold off : 0.2us
CH3 : 0.00V
CH4 : 0.00V
CH4 : 0.00V
BW : FULL
=Trigger=
=Filter=
=Offset=
CH2
v/DIV
200mV
v/DIV
200mV
1999/04/05 20:26:47
1
IC2 24
4
IC1 18 ,
IC2 16
IC1 13 ,
IC2 22
13
CD-DP2400E
– 40 –
TROUBLESHOOTING
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."
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.
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.
(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?
(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
(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
Cleaner Liquid
Cleaning Disc
HOW TO USE
1. 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.
2. Place the CD cleaner disc onto the CD disc tray with the brush side down, then press the play button.
3. You will hear music for about 20 seconds and the CD player will automatically stop. If it continues to turn, press the stop button.
3. You will hear music for about 20 seconds and the CD player will automatically stop. If it continues to turn, press the stop button.
CAUTION
The CD lens cleaner should be effective for 30 - 50 operations, however if the brushes become worn out earlier then please
replace 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 disc must not be used on car CD player or on computer CD ROM drives.
All rights reserved. Unauthorized duplicating, broadcasting and renting product is prohibited by law.
replace 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 disc must not be used on car CD player or on computer CD ROM drives.
All rights reserved. Unauthorized duplicating, broadcasting and renting product is prohibited by law.
Parts code
1.
CD optical pickup Lens cleaner disc
UDSKA0004AFZZ
Click on the first or last page to see other CD-DP2400E (serv.man18) service manuals if exist.