Sharp CD-C410H (serv.man4) Service Manual ▷ View online
CD-C410H,CP-C410
– 29 –
Figure 29 SCHEMATIC DIAGRAM (10/10)
7
8
9
10
11
12
2V
2.1V
2.1V
2V
0.3V
0V
2V
2V
0V
2V
2V
2V
2V
2V
2V
2V
2V
2V
2V
2V
2V
3.4V
2V
0V
0V
2.1V
4V
2V
2V
2.1V
2.1V
2V
2V
2V
2V
2V
2V
2V
2V
2V
2V
1.8V
1.8V
0V
0V
4V
4V
0V
0V
4V
0V
0V
2V
0V
0V
2V
4V
4V
0V
4V
4V
2.1V
0V
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
IC1
0V
1.8V
4V
4V
4V
1.7V
0V
4V
0V
2V
0V
4V
0V
4V
0V
0V
2V
2V
0V
4V
1.8V
0V
2V
1.6V
0V
4.4V
4.4V
0V
0V
0V
0V
0V
0V
0V
4V
0V
0V
0V
0V
0V
0V
4V
2V
0V
0V
0V
4V
3.8V
1.7V
0V
0V
1.7V
0V
1.8V
0V
2V
0V
2V
0V
0V
0V
4.4V
0V
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
IC2
0V
2V
2V
2V
5.2V
0V
0V
0V
0V
0V
0V
0V
2.2V
2.2V
2V
2V
2V
0V
2V
0V
2.2V
2V
0V
0.7V
2V
2.2V
0V
0V
0V
2.2V
2.2V
2V
2V
0V
0V
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
36
35
34
33
32
31
PIN
NO. VOLTAGE
IC5
0V
0V
0V
5.1V
0.1V
0V
5.1V
4.2V
0V
9
8
7
6
5
4
3
2
1
PIN
NO.
VOLTAGE
IC91
0V
0V
0V
0V
0.6V
3V
1.3V
0.6V
3V
3V
0V
0V
9
8
7
6
5
4
3
2
1
12
11
10
0V
6V
3.7V
3V
0.6V
0V
0.8V
0V
17
16
15
14
13
20
19
18
3V
0.6V
0V
0V
21
24
23
22
PIN
NO.
VOLTAGE
IC101
0.4V(11.3V)
0V(0V)
1.2V(1.2V)
0V(0V)
0V(0V)
4.6V(4.6V)
4.5V(4.5V)
0V(0V)
0V(0V)
1.1V(0V)
5.5V(5.5V)
0V(0V)
9
8
7
6
5
4
3
2
1
12
11
10
0V(2.6V)
0.5V(0.1V)
0V(0V)
1.5V(0V)
5.6V(5.3V)
1.2V(1V)
1.2V(1V)
3.8V(1.2V)
17
16
15
14
13
20
19
18
0V(0V)
2.8V(2.6V)
21
22
22
PIN
NO.
VOLTAGE
IC302
5.5V(5.5V)
2V(2V)
2V(2V)
2V(2V)
7.2V(8.2V)
0.5V(0.8V)
0V(0V)
0V(0V)
2.6V(2.6V)
2.6V(2.6V)
6.3V(8.2V)
1.2V(1.2V)
9
8
7
6
5
4
3
2
1
12
11
10
1.3V(1.4V)
1.4V(0V)
2.2V(2V)
2V(1.9V)
2V(2V)
1.6V(1.6V)
0.6V(0.7V)
7.2V(8.2V)
17
16
15
14
13
20
19
18
7.2V(8.2V)
2V(2V)
2V(2V)
2V(2V)
21
24
23
22
PIN
NO.
VOLTAGE
IC303
5.1V
5.1V
5.1V
5.1V
5.1V
5.1V
4.7V
0V
0V
4.7V
0V
4.7V
4.7V
5V
5V
5V
5V
5V
5V
5V
5V
5.1V
5.1V
5.1V
0V
5.1V
5.1V
5V
5V
5V
5V
5V
5V
5.1V
0V
4.7V
4.4V
0V
0V
0V
0V
4.7V
0V
4.7V
4.7V
5.1V
5.1V
5.1V
5.1V
5.1V
5.1V
5.1V
5.1V
5V
5.1V
5.1V
5.1V
5.1V
5.1V
0V
5.1V
10.2V
5.1V
5.1V
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
IC401
0V
0.6V
0V
3.8V
0V
0V
0V
0.12V
4.4V
0.24V
4.4V
4.4V
0V
–24.7V
–24.7V
–24.7V
–24.7V
–24.7V
–24.7V
–24.7V
4.4V
0V
4.4V
4.4V
0V
0V
4.4V
4.4V
4.4V
4.4V
0V
4.4V
0V
2V
2V
0V
0V
0V
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
40
39
38
37
36
35
34
33
32
31
PIN
NO. VOLTAGE
IC701
4.4V
4.4V
0V
0V
0.41V
–18V
–21.2V
0V
0V
0V
0V
0V
4.4V
0V
2.7V
11.7V
11.7V
4.4V
4.4V
4.4V
0V
4.4V
–11.5V
–27.8V
50
49
48
47
46
45
44
43
42
41
PIN
NO. VOLTAGE
51
64
63
62
61
60
59
58
57
56
55
54
53
52
–24.8V
–27.8V
–27.8V
–24.4V
–27.8V
–24.4V
–24.5V
–14.8V
–24.5V
–21.2V
–27.8V
–18V
–28V
–11.5V
–24.4V
14.7V
68
67
66
65
69
80
79
78
77
76
75
74
73
72
71
70
27.8V(C420)/31.8V(C2700)
14.05V
24.7V
14.19V
0V
0V
24.8V
1.24V
5.3mV
26.7V
0V
2.25V
9
8
7
6
5
4
3
2
1
12
11
10
5.2mV
1.23V
14
13
PIN
NO.
VOLTAGE
IC801
CD-C410H,CP-C410
– 30 –
WAVEFORMS OF CD CIRCUIT
3
5ms
0.50 V
IC1 20 F.E
0.50 V
IC1 20 F.E
1
5ms
5.0 V
IC1 54 DRF
5.0 V
IC1 54 DRF
STOP
PLAY
FOCUS
SERCH
1
3
5
4
2
6
7
8
9
10
11
3
4
5
6
7
8
9
6
7
8
10
11
12
9
6
7
8
9
12
0.5ms
1.00 V
HF
1.00 V
HF
0.5ms
5.0 V
HFL
5.0 V
HFL
0.5ms
5.0 V
TES
5.0 V
TES
1
2
3
CUE
0.5ms
1.00 V
HF
1.00 V
HF
1
2
3
0.5ms
5.0 V
HFL
5.0 V
HFL
0.5ms
5.0 V
TES
5.0 V
TES
REVIEW
50ms
10.0 V
JP+
10.0 V
JP+
CUE
50ms
10.0 V
JP-
10.0 V
JP-
50ms
0.50 V
JP
0.50 V
JP
50ms
1.00 V
TE
1.00 V
TE
0.5ms
10.0 V
JP+
10.0 V
JP+
0.5ms
10.0 V
JP-
10.0 V
JP-
0.5ms
0.50 V
JP
0.50 V
JP
0.5ms
1.00 V
TE
1.00 V
TE
REVIEW
50ms
10.0 V
JP+
10.0 V
JP+
50ms
10.0 V
JP-
10.0 V
JP-
50ms
0.50 V
JP
0.50 V
JP
50ms
1.00 V
TE
1.00 V
TE
0.5ms
10.0 V
JP+
10.0 V
JP+
0.5ms
10.0 V
JP-
10.0 V
JP-
0.5ms
0.50 V
JP
0.50 V
JP
0.5ms
1.00 V
TE
1.00 V
TE
PLAY
20ms
1.00 V
SPO
1.00 V
SPO
NORMAL DISC
TN0=01
TN0=01
20ms
2.00 V
CLV+
2.00 V
CLV+
PLAY
TCD-712 (140mm)
TN0=01
TN0=01
50ms
1.00 V
SPO
1.00 V
SPO
50ms
2.00 V
CLV+
2.00 V
CLV+
PLAY
TCD-712
5s
100mV
SLD
100mV
SLD
1
0.5s
100mV
SLD
100mV
SLD
1
CD-C410H,CP-C410
– 31 –
TROUBLESHOOTING (CD SECTION)
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 troubleshooting 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 troubleshooting 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.
• When the turntable fails to stop.
Is from
5 V till 2.5V down pulse (approx. 300 ms)
Check the SWM3 and the wiring from the IC701 pin 21 to the
SWM3.
SWM3.
No
No
input into the IC701 pin 21 when the turntable is rotating?
5V
2.5V
0V
Yes
Check IC2 pin26 Q91 and Q93 and the periphery.
Check the MECHA UP SW and the wiring from the IC701 pin
21 to the MECHA UP SW.
21 to the MECHA UP SW.
No
Yes
Is there following voltage input on the IC701 pin 21 in the
specific state?
When the CD mechanism is moved up: 0V
specific state?
When the CD mechanism is moved up: 0V
In other states: 4.3V
Yes
Is there following voltage input on the IC701 pin 21 in the
specific state?
specific state?
In other states: 4.3V
When the CD mechanism is moved up: 0V
• When turntable fails to move.
Check the MECHA UP SW and the wiring from the IC701 pin
21 to the MECHA UP SW.
21 to the MECHA UP SW.
Is 4V output from the Q91 emitter during operation stated
above?
above?
Yes
Yes
Check the wiring of IC2 pin 26 and Q93 pin 2.
OK
No
No
Is L output from the IC2 pin 26 during SEC when the disc skip
switch is pressed?
switch is pressed?
Yes
Check turntable motor and turntable mechanism.
Check Q91, Q93 and the periphery.
IC701 defective.
IC2 defective.
CD-C410H,CP-C410
– 32 –
• When the CD tray fails to open or close.
Is there following voltage input in specific state of IC701 pin 19?
Open state: 0V
Close state: 0V
Intermediate state between open state and close state: 4.3V
Intermediate state between open state and close state: 4.3V
Is H output to IC2 pin 24 or 25 for 7 seconds when the OPEN/
CLOSE key is pressed?IC91 is defective. Replace it.
CLOSE key is pressed?IC91 is defective. Replace it.
Is 4V output between IC91 pins 3 and 7 during operation
stated above?
stated above?
Check the loading motor (M1) and the loading mechanism.
Yes
Yes
Yes
No
No
IC2 defective.
No
Check the periphery of IC91.
IC91 defective.
OK
OK
Check the OPEN CLOSE SW and the wiring from the IC701
pin 19 to the OPEN CLOSE SW.
pin 19 to the OPEN CLOSE SW.
Check the wiring of the IC2 pins 24 and 25, IC91 pins 1 and 3.
• The CD function will not work.
The CD operating keys don't work.
Check the CD, DSP, power supply, and 16.93 MHz clock, and
reset terminal.
reset terminal.
Check the waveform of SCK, SO (DATA) and SI (COMM).
Yes
Yes
See if the pick-up is in the pick-up in PICKUP IN SW position.
If the items mentioned above are OK, check the main
microcomputer IC701.
microcomputer IC701.
Yes
Yes
No
Yes
No
• The CD operating keys work.
Check the Focus - HF system.
Playback can be performed without a disc.
Focus search OK
Does the pick-up move up and down twice?
Does the output waveform of IC1(16)(FD) match that shown in
Fig. 32?
Fig. 32?
Check the IC1(50)(CLK) line, 4MHz.
Check the microcomputer data on pins (51)(CL), (52)(DAT)
and (53)CE.
Check the microcomputer data on pins (51)(CL), (52)(DAT)
and (53)CE.
Check the area around IC5-CNP2.
Yes
Yes
Figure 32
Focus search is
performed two
times when play
operation is done
without disc.
performed two
times when play
operation is done
without disc.
0.5s
0.50 V
IC1 16 FD
0.50 V
IC1 16 FD
2
1
0.5s
0.50 V
IC1 7 TE
0.50 V
IC1 7 TE
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