DOWNLOAD Sharp CD-C421H (serv.man4) Service Manual ↓ Size: 1.73 MB | Pages: 17 in PDF or view online for FREE

Model
CD-C421H (serv.man4)
Pages
17
Size
1.73 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System / Schematic diagrams and PWB layouts
File
cd-c421h-sm4.pdf
Date
PREV: Sharp CD-C421H (serv.man3) Service Manual

Sharp CD-C421H (serv.man4) Service Manual ▷ View online

– 25 –
CD-C421H / C411H
Figure 25 WIRING SIDE OF P.W.BOARD (5/6)
7
8
9
10
11
12
+
-
+
-
PICK UP IN
SLED MOTOR
DISC MOTOR
M2
CNP3A
SW4
M1
+
-
1
2
3
4
5
6
CNS5
2
1
2
1
CNS10
WH
RD
GY
WH
BR
WH
GY
OR
WH
GY
10
1
BIM5
6
9
8
7
6
5
4
3
2
1
SW2
MECHA UP
SW1
OPEN/CLOSE
M3
T/T UP/DOWN LOADING
SW3
DISC NUMBER
CNS1B
CNS1A
CNS2B
CNS2A
CNS3B
CNS3A
BL
YL
PK
WH
BK
GY
RD
WH
GY
WH
GY
WH
GY
WH
RD
WH
GY
WH
GY
WH
BL
PK
WH
YL
BK
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
1
2
3
4
5
PICKUP UNIT(306)
CD MOTOR PWB-F
SENSOR PWB-E
SOLM2
SOLENOID
CNP1
TO MAIN PWB
P23 12-E
CNP2
TO MAIN PWB
P23 12-C
CNP10
TO MAIN PWB
P23 12-B
CNP3
TO MAIN PWB
P23 12-D
CD-C421H / C411H
– 26 –
Figure 26 WIRING SIDE OF P.W.BOARD (6/6)
7
8
9
10
11
12
R362
C341
R348
R347
C330
C321
R349
R346
L342
C346
R369
C347
R344
C345
1
R345
R301
C384
R324
TP301
X352
C382
1
5
10
12
15
20
22
R378
C387
IC302
C394
C397
C381
C301
C337
C332
R319
C336
C335
C334
R323
VD301-1
C331
C323
D302
D301
D304
D303
R376
R360
C392
C385
C386
C393
R379
R381
R380
L351
R336
C380
R371
R372
R373
R374
T351
AM IF
C342
C354
C355
R385
R383
R387
R384
C395
C352
C351
L353
R358
C343
R351
IC303
C366
C350
C353
C361
C363
C362
TP302
C364
C365
R350
C367
C369
X351
R356
R357
C368
C374
R361
C373
C371
R393
R364
R363
R355
R352
CF351
C399
C398
C358
C357
R353
C356
R359
R367
RT49
R354
LT22
12
11
10
9
8
7
6
5
4
3
2
1
RT48
RT37
RT36
RT35
RT28
RT30
CT29
CT22
1
5
10
12
13
15
20
24
CT25
CT24
CT37
R366
R365
R370
RT21
RT29
ICT21
RT26
CT28
CT27
CT26
XT21
R377
D353
R368
C375
CNS303
C370
ZDT351
C396
CF352
R392
L352
R391
R395
Q361
ZD352
C391
VR351
D352
D351
R382
Q360
Q371
FE301
CNP301
2
1
L341
Q301
T302
CF301
T306
VD301-2
CF302
L354
Q353
C372
Q354
CT43
ZDT21
RT34
RT33
CT36
QT21
CT21
RT32
LT21
CT23
13
15
20
24
1
10
12
11
C338
2
3
4
5
6
7
8
B
C
E
E C B
E C B
1
2
3
1 2 3
1 2 3
E C B
B
C
E
E
C
B
3
2
1
AM OSC.
AM ANT.
FM MUTE
LEVEL
CNP303
TO MAIN PWB
P23 12-C
TUNER PWB-C
SO301
AM
LOOP
ANTENNA
FM 75 OHMS
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
2 1
CHASSIS
GND
CHASSIS
GND
– 27 –
CD-C421H / C411H
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
17.2V
0V
12V
3
2
1
PIN
NO.
VOLTAGE
IC941
17.2V
0V
5V
3
2
1
PIN
NO.
VOLTAGE
IC942
27.8V(C411H)/31.8V(C421H)
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
IC961
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
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
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
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
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
PIN
NO.
VOLTAGE
IC302
5V(0.3V)
0V(0V)
1V(0V)
1.7V(0V)
5.6V(0.4V)
1.7V(0V)
5.7V(0.4V)
5.6V(0.3V)
5.7V(0.3V)
9
8
7
6
5
4
3
2
1
PIN
NO.
VOLTAGE
IC301
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
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
IC501
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
5.1V
0V
2.2V
5.1V
2.2V
2.2V
5.0V
2.9V(3.6V)
5.1V
3.5V(0.3V)
3.9V(1.9V)
3.9V(1.2V)
9
8
7
6
5
4
3
2
1
12
11
10
1.4V
4.0V
1.4V
2.2V
2.4V(0V)
2.4V(0.9V)
0V(1.9V)
0.9V(0.9V)
17
16
15
14
13
20
19
18
2.5V(2.1V)
2.5V(2.1V)
5.1V(5.1V)
3.6V(3.6V)
21
24
23
22
PIN
NO.
VOLTAGE
IC303
0V(0V)
2.6V(0V)
2.6V(0.2V)
2.6V(0V)
5.2V(0V)
0V(0V)
2.6V(0V)
0V(0V)
0V
0V
0V
2.6V(0V)
9
8
7
6
5
4
3
2
1
12
11
10
0V(0V)
2.7V(0V)
5.2V(0V)
0V
0V
0V
0V(0.6V)
0V(5V)
17
16
15
14
13
20
19
18
4.8V(4.8V)
0V(0V)
0V(0V)
0V(0V)
21
24
23
22
PIN
NO.
VOLTAGE
ICT21
0.3V(12.3V)
4.8V
2.6V
0V
0V
0V
0.5V(5V)
12V(0V)
0.4V(0V)
4V(0V)
5.1V(5.1V)
0V
9
8
7
6
5
4
3
2
1
12
11
10
0V(2.5V)
0V
0V
2.5V(0V)
5.1V
0.9V
0.9V
1.9V(1.1V)
17
16
15
14
13
20
19
18
0V
2.6V
21
22
PIN
NO.
VOLTAGE
IC302
(  ):AM
OTHER:FM(ST)
Figure 27 SCHEMATIC DIAGRAM (1/11)
CD-C421H / C411H
– 28 –
Figure 28 SCHEMATIC DIAGRAM (2/11)
A
B
C
D
E
F
G
H
1
2
3
4
5
6
TO TUNER PWB
P37 9-G
CNS303
CNS502
CNS501
CNP502
CNP501
Q511
2SC1845
F
C502
0.001
C512
180P
R581
10K
C501
0.001
C511
180P
1
1
7
6
5
4
3
2
7
6
5
4
3
2
1
3
2
3
2
1
IC601
IX0225AW
MAIN SYSTEM MICROCOMPUTER  
CNS601
PHM1
RUN PALS
SENSOR
FWM2
CNPM2
SWM3
F.P.
SWM5
CAM
SOLM1
SOLENOID
8
7
6
5
4
3
2
1
1
2
3
4
5
6
7
8
9
10
11
12
10
11
12
1
2
3
4
5
6
7
8
9
CNPM1
MM1
TAPE MOTOR
CNSM1
Q601
KTA1273Y
Q602
2SB561 C
23
20
27
28
24
25
26
22
21
29
B
8
10
A
11
4
32
31
30
ERASE HEAD
BIAS
T1_T2
CLK
CLK
DO
DO
CE
DI
CE
DI
SD
SM
A+12V
A_GND
D_GND
TUN_MUTE
TUN_MUTE
REC
REC/P.B
TAPE2_L2
TAPE2_L1
TAPE2_R1
TAPE2_R2
ERASE
M_GND
A_GND
A_GND
TAPE1_L
TAPE1_R
L-CH
R-CH
L-CH
R-CH
TAPE1
PLAYBACK
HEAD
TAPE2
RECORD/
PLAYBACK HEAD
TUN_R
TUN_L
TO DISPLAY PWB
P35 7-A
R638
10K
R631
100K
R630
3.3K
R621
1K
R601
100K
C601
0.022
R604
10K
C609
47/16
R644
1.2K
D601
1SS133
R643
10K
R642
10K
R641 10K
R640
10K
R639
10K
R627
1K
R602
10K
XL601
4.19MHZ  
+B
+B
R635 1K
R636 1K
R615 1K
C608
0.022
R633 1K
R622
1K
R634 1K
R632 1K
R637 1K
R605 1K
R612 1K
R606 1K
C606 150P
R620 1K
R619 1K
R614 1K
R613 1K
C602 150P
R623 1K
R616 1K
C604 150P
C603 150P
R608 1K
R611 1K
R607 1K
R609 1K
R618 1K
R603 1K
R610 1K
C605 150P
C607
220/10
D602
1SS133
R617 1K
R625
12K
R624
1K
+12V (MECHA) 
DISC_NO 
MECHA_UP/DN 
DRF 
CD_OPEN/CLOSE 
MAIN_STB
POWER_CONT
PUIN
GND 
DSP_RES 
SL–
SL+ 
CQCK
COIN
SQOUT 
WRQ 
RWC 
MAIN_STB
CLEAR 
MAIN_SI 
MAIN_SO 
MAIN_SCK
MAIN_SI 
MAIN_SO 
MAIN_SCK
CLEAR 
+5.6V
REC/P.B.
REC  MUTE
CD  DRF
CD  PUIN 
CD  SL+
CD  SL–
CD  RES
CD  SQOUT
CD  COIN 
CD  CQCK 
VDD 
CD  RWC
CD  WRQ
TACUM  SW
T2  RUN
T1  RUN
TA  MOT  SW 
TA  SOL
VSS 
U/D  SW
D.NO.  SW
O/C  SW
VDD 
POWER_CONT
VLOAD 
P33 
P12 
P10 
AVDD
AVREF 
P04/XT1 
P74 
P73 
AVSS
RESET 
P26 
P25 
P24 
P23 
P126
X1
P124
P125
P17 
P16 
P15 
P14 
P101
P103
P102
P100
P31 
P30 
P03 
P113
P112
P110
P106
P116
P117
P114
P115
P105
P104
P02 
P71 
P70 
P21 
P20 
P00 
P01 
P122
P123
P91 
P92 
P93 
P94 
P22 
VDD 
P72 
IC
XT2 
VSS 
X2
P37 
P36 
P35 
P34 
P32 
GND 
P11 
P90 
VDD 
P27 
P80 
P81 
P120
P121
P107
P111
T1/T2 
BIAS
P13 
P127
P97 
P96 
P95 
R629
10K
R628
10K
R626
1K
T2  AFP
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
80
79
78
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70 
71 
72 
73
74
75
76
77
TAPE MECHANISM PWB-D
3
1
2
4
FWM1
SWM4
F.A.S
2+
MECHA STOP
SOLENOID
T1 RUNPALS
FOOL PROOF
T2 RUNPALS
+B
GND
MOTOR
MECHA STOP
SOLENOIDO
T1 RUN
FOOL PROOF
T2 RUN
+B
GND
MOTOR
M
MAIN PWB-A1(1/3)
10
9
8
7
6
5
4
3
2
1
9 8 7 6 5 4 3 2 1
D_GND 
4
3
2
1
M_GND
L601
100
µ
H
TO MAIN PWB(2/3)
CD SECTION
P31 7-G
TO MAIN PWB(2/3)
CD SECTION
P31 9-G,12-E
TO MAIN PWB(3/3)
POWER AMP.
SECTION
P32 2-G
TO MAIN PWB(3/3)
POWER AMP.
SECTION
P32 2-D
TO DISPLAY PWB
P35 8-H
CNP303
FW702
FW703
TO MAIN PWB(3/3)
POWER AMP.
SECTION
P32 2-F
TO MAIN PWB(3/3)
POWER AMP.SECTION
P32 2-F
• NOTES ON SCHEMATIC DIAGRAM can be found on page 16.
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