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

– 29 –
CD-C421H / C411H
Figure 29 SCHEMATIC DIAGRAM (3/11)
7
8
9
10
11
12
TO TUNER PWB
P37 9-G
CNS303
C560
0.0033
R559
10K
C539
1/50
R535
56
C451
1/50
D401
1SS133
+B
+B
C452
1/50
R567
4.7K
Q576
KTC3199 GR
R576
10K
R405
1K
R403
1K
R407
1K
C407
0.047
(ML)
R408
1K
R406
1K
R404
1K
R402
1K
C426 0.18
C424 0.056 (ML)
R431
4.7K
R432
4.7K
C455
2.2/50
C415
22/16
C427 0.18
C453
0.022
R420
100K
R418
15K
C417
100P
C586
0.0022
C585
0.0022
C458
0.001
C446
10/16
R412
39K
R411
39K
C454
2.2/50
R421
100K
R414
1.5K
R413
1.5K
R401
1K
C403
0.047 (ML)
C401
0.047
(ML)
C405
0.047 (ML)
R427 1K
R425 1K
C406
0.047 (ML)
C402
0.047
(ML)
C412
390P
C456
220P
C411
390P
C457
220P
IC401
LC75394E
AUDIO PROCESSOR
C408
0.047
(ML)
C404
0.047
(ML)
C450
100/16
C432 0.0039 (ML)
R415
3.3K
C448
22/16
C444
100P
R426 1K
C442
0.0027
C443
100P
R417
15K
R416
3.3K
C447
22/16
C431 0.0039 (ML)
C429 0.03
C430 0.033
C425 0.18
C441
0.0027
C428 0.18
C445
10/16
C423 0.056 (ML)
C449
22/16
C416
22/16
C418
100P
SO401
VIDEO/AUX
C421
0.33/50
C422
0.33/50
CNP502
CNP501
C582
0.022
R585
2.2K
C583
100/16
Q584
KTC3199 GR
C531
47/16
R519
1K
C519
330P
C532
47/16
Q565
KRC104 M
R537
5.6K
R539
4.7K
C561
1/50
C557
0.068
R557
56
C544
3.3/25
L501
330
µ
H
Q571
KTC3203 Y
R571
12
C562 1/50
R512
3.3K
R518
10K
C555
22/16
C570
0.0039
(ML)
R513
2.2K
R514
2.2K
R517
10K
C543
0.022
C566
0.022
R540
4.7K
R568
150
(1/2W)
R552
4.7K
R562
1K
C572
0.027
(ML)
R578
100K
Q511
2SC1845 F
C502
0.001
C503 330P
R516
10K
R511
3.3K
C571
47/16
C513 0.001
C514 0.001
C534
0.018
R565
1K
Q513
2SC1845 F
Q516
KTC3199 GR
C512
180P
C565
220/10
R531
100K
C536
560P
C538
0.015
R534 3.9K
C540
1/50
R563
470
C520
330P
R520
1K
C504
330P
R584
10K
R510
10K
Q575
KTC3199 GR
Q583
KRC104 M
C581
0.047
R502
1K
R566
4.7K
R555
560
C533
0.018
C537
0.015
C535
560P
C564
22/16
R541
22K
Q512
2SC1845 F
R558
56
C558
0.068
Q581
KTA1266 GR
IC501
AN7345K
PLAYBACK AND RECORD
/PLAYBACK AMP
R538
5.6K
R581
10K
R536
56
Q514
2SC1845 F
R501
1K
R582
10K
R583
10K
Q515
KTC3199 GR
Q566
KTA1266 GR
R542
68K
R570
47K
R577
100K
C501
0.001
C511
180P
C556
22/16
R569
100K
R533
3.9K
R551
4.7K
Q582
KRC104 M
R515
10K
C563
0.082
R553
6.8K
C553
0.001
R560
10K
R575
10K
C554
0.001
R561
10K
R556
560
C559
0.0033
R554
6.8K
R532
100K
7
1
2
3
X
Z
Y
1
2
3
4
5
6
7
8
9
11 10
12
13
14
15
16
48
47
46
45
44
43
42
41
40
38 39
37
36
35
34
33
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
7
6
5
4
3
2
1
3
2
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
6
TAPE_L
1
3
2
3
2
3
2
1
LEFT
RIGHT
LF4C1
LF4C2
LF4C3
REC_L
RF4C3
RF4C2
RF4C1
LFS
NC
L1
NC
RF3C1
RF2C1
RF3C2
RF3C3
LINVIN2
LVref
LTOUT
LTEST
LVRIN
LVROUT
Vref
VDD
RVROUT
RTEST
L4
LF1C1
LSEL0
LF1C3
LF2C1
LF2C2
LF2C3
LF3C1
LF3C2
LF3C3
LF1C2
LINVIN1
R3
NC
NC
R1
R2
VSS
CL
DI
CE
VSS
AVSS
RFS
RVref
RINVIN2
RTOUT
RVRIN
L2
LTIN
R4
RINVIN1
RF1C1
RF1C2
RF1C3
RF2C3
RSEL0
RF2C2
RTIN
L3
GND
REC_R
A_GND
CD_R
CD_L
CLK
DO
CE
DI
SD
SM
A+12V
A_GND
TUN_MUTE
1
3
2
4
A_GND
+12V
MAIN_L
MAIN_R
TAPE_R
112K
56K
112K
56K
Hich=CHROME
Hich=T1
Nor/CrO2
RIPPLE
ALC
GND
ALC
Vcc
APE2_L2
APE2_L1
PE2_R1
PE2_R2
ERASE
M_GND
A_GND
A_GND
TAPE1_L
APE1_R
TUN_R
TUN_L
GND(MOTOR)
TO MAIN PWB(3/3)
POWER AMP.
SECTION
P32 2-B
TO MAIN PWB(2/3)
CD SECTION
P31 11-C
12
11
10
9
8
7
6
5
4
3
2
TO MAIN PWB(3/3)
POWER AMP.
SECTION
P32 2-E
TO MAIN PWB(3/3)
POWER AMP.
SECTION
P32 2-E
–
–
+
+
+
–
+
–
FM SIGNAL
RECORD SIGNAL
PLAYBACK SIGNAL
CD SIGNAL
CNP303
CD-C421H / C411H
– 30 –
A
B
C
D
E
F
G
H
1
2
3
4
5
6
• NOTES ON SCHEMATIC DIAGRAM can be found on page 16.
Figure 30 SCHEMATIC DIAGRAM (4/11)
C53 220P
CNS2
CNS2
CNP2
CNP3A
CNS3B
CNS3A
CNP3
R10
82K
CNP1
C21
1/50
D2
1SS133
R45
1K
R47
1K
RK
IC5
M56748FP
FOCUS/TRACKING/
SPIN/SLIDE DRIVER
C24
1/50
R29
1K
R28
1K
IC1
LA9241M
SERVO AMP.
R34
1K
C32
27P
R41
4.7K
C31
0.0027
R35
470
R42 560
R24
10K
R25
1.2K
C18
1/50
C19
47/16
R27
220K
C20
0.0033
R26
220K
C14
0.01
C11
0.1
C45
4.7/25
R13
33K
R15
47K
R14
10K
R16
1.5K
R19
39K
R39
22K
R40
22K
R54
1K
R61
15K
C94
0.001
R12
15K
C13
0.1
C44
100/10
R31
10K
R30
15K
C15
0.0047
R2
100K
R3
10K
C4
0.001
C5
0.033
R4
2.2K
C6
0.033
R5
6.8K
R6
100
C7
0.1/50
C8
0.068
C9
0.047
R7
1K
C10
180P
R8
12K
R9
27K
R11
3.3K
C17
0.47/50
R23
1.2K
R22
6.8K
C16
0.001
R21  56K
R20  10K
R37
47K
R38
33K
R32
56K
R36
47K
C34
0.033
R33
5.6K
C30
2.2P
C33
0.001
C35
0.1/50
C37
220/6.3
C38
0.01
C39
0.47/50
C40
0.33/50
R17
82K
C12 330P
C1
0.01
Q1
KTA1266 GR
R1 1K
C2
47/16
R43
12
C3
0.1/50
8
7
6
5
4
3
2
1
5
4
3
2
1
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
21 22 23
20
5
4
1
2
3
5
4
3
2
1
5
4
3
2
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18 19
20 21 22 23
24 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
M2
SLED
MOTOR
M1
DISC
MOTOR
CNS1B
CNS1A
C25
0.01
HF
+
++
+
+
+
+
+
+
+
+
+
+
+
++
+
+
+
+
+
+
+
CV+
CV–
SLOF
HFL
TES
TOFF
TGL
JP+
JP–
RFSM
RFS–
SLC
RF
REF
OR
REF
REF
REF
REF
SL+
SL–
SLD
SLEO
SPO
SP–
SPG
SPI
SP
AGND
FE–
FE
FA
FA–
FD–
GEN
GEN
GEN
FD
TO
JP
TD–
TD
TH
REF
JP
TO
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
+
+
+
+
+
+
REF
REF
REF
SCI
TESI
TE
TE–
TB
FIN1
FIN2
VCC1
LDS
BHI
PHI
LF2
VR
REF1
VCC2
DRF
CE
DAT
CL
CLK
DEF
SLI
DGND
REF
LDO
RF
REF
FE1
VCR
VCR
VCR
VCR
TGL1
THDL
GL
THD
VCC
DEF
HFL
DRF
CE
CL
SLOF
FSTA
LATOH
TOSTA
FOSTA
S.Q.R
FSTA
8/12CM
LASER
2FREQ
JP+
JP–
CV+
CV–
REF
REF
JP
REF
++
EFBAL
FSC
FOSTA
FE1
FSC
SLOF SLOF
SLOF
JPCLO
FSS
TBC
GND
FO–
F
B
A
E
K
LD
VR
PD
GND
FO+
TR+
TR–
B
LD GND
LTOH30M1
1M
0.0022
1M
220P
C
F
A
E
K
LD
MON
ACTUATOR
TR–
FO–
FO+
TR+
TE
VREF
SW4
PICKUP IN
CD MOTOR PWB-F
PICKUP UNIT
PUIN
SL–
SL+
DRF
TO MAIN
MICON
P2
A
F
B
E
K
F
E
B
A
K
TP1
+5V
LD
VR
PD
GND
FO–
FO+
TR+
TR–
LD
VR
PD
GND
FO–
FO+
TR+
TR–
SP+
SP–
–
SL+
SL–
PU-IN
M
M
+B
+B
+
–
+
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
F
E
–
–
9
8
1
10
6
5
4
3
2
7
12
• The numbers   
1 
  to  
12 
 are waveform numbers shown in page 20.
– 31 –
CD-C421H / C411H
7
8
9
10
11
12
Figure 31 SCHEMATIC DIAGRAM (5/11)
C69
220P
C70
220P
R75 270
R76 270
R73
2.7K
R74
2.7K
D81
1SS133
IC91
TA7291S
LOADING MOTOR DRIVER
R86 1K
Q93
KRC102 M
C22
0.01
D2
SS133
R60
1K
R87 1K
R88 1K
IC2
LC78622K
SERVO/SIGNAL
CONTROL
R58
680
C41
0.047
C42
0.047
R57
27K
R56
1.2K
C43
100/10
C93
0.001
R45
1K
R46
1K
R47
1K
C57
100P
C55
100P
C54
100P
C56
100P
C67
10/16
C68
10/16
R18
3.3M
D91
1SS133
R96
10K
Q91
KTA1271 Y
R98
10K
R95
2.2K
R97
5.6K
C96
0.001
C91
47/16
C92
0.022
L1
27
µ
H
R82
100
D7
1SS133
D6
1SS133
C52
47/16
R70   1K
R71   1K
R79   1K
R78   1K
R77   1K
R72   1K
R99
56
R34
1K
C31
0.0027
R37
47K
R38
33K
6
K
34
033
CNP10
21 22 23
20
24 25 26 27 28 29
32
1 2 3 4 5 6 7 8 9
A
30
31
2
1
2
1
1
2
3
4
5
6
B
9
5
Y
Z
X
9
8
7
6
5
4
3
2
1
10
10
9
8
7
6
5
4
3
2
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17 18 19 20 21 22 23
24 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
SW3
DISC NO.
SW2
MECHA UP
CNS5
SW1
OPEN/CLOSE
BIM5
CNS10
XL1
16.93MHz
C50
0.1
C59
0.022
C51
0.022
/CS
TEST5
X-TAL
GENERATOR
4M
16M
/RES
/CQCK
COIN
SQOUT
RWC
WRQ
FSX
PW
SFSY
SBCK
TEST11
U-COM
INTERFACE
SUB-CODE
EFLG
SBSY
XVSS
XIN
XOUT
XVDD
MUTER
RVDD
RCHO
RVSS
LVSS
LCHO
LVDD
MUTEL
TEST4
TEST1
4FS
DIGITAL
FILTER
DOUT
TEST3
DIGITAL
OUT
RAM
ERROR COERECT
FLAG CONTROL
VCO CLOCK
OSC CONTROL
SLICE LEVEL
CONTROL
SYNC-DETECT
EFM DEMODULATE
EXTERNAL
OUTPUT
CLV
DIGITAL SERVO
C2F
EMPH
CONT5
CONT4
CONT3
CONT2
CONT1
VDD
FSEQ
PCK
JP_
JP+
TGL
TOFF
DEF1
PDO
VVSS
ISET
VVDD
FR
VSS
EFMO
EFMIN
TEST2
CLV+
CLV–
V/P
HLF
TES
SERVO
COMMAND
1BIT
DAC
2KX8
TA1
PUIN
SL–
SL+
DRF
TO MAIN PWB(1/3)
MICON SECTION
P28 1-B
TO MAIN PWB(1/3)
MICON SECTION
P28 1-E
TO MAIN PWB(1/3)
TAPE SECTION
P28 1-E
CD_OPEN/CLOSE
MECHA_UP/DOWN
DISC_NO
3
2
1
SENSOR PWB-E
M3 T/T
UP/DOWN
LOADING
SOLM2
SOLENOID
LOCK
TO MAIN PWB(3/3)
POWER AMP.
SECTION
P32 2-F
TO MAIN PWB(3/3)
POWER AMP.
SECTION
P32 2-E
TO MAIN PWB(1/3)
MICON SECTION
P28 1-E
MAIN PWB(1/3)
A.P.SECTION
P29 7-B
MAIN PWB-A1(2/3)
+B
+B
D_GND
 (UCOM)
+5V
(DRIVER)
+12V
+4.3V
CD_L
A_GND
GND
CD_R
D_GND
CD-LD(M+)
GND(D)
MECHA UP
GND(D)
DISC NO.
OPEN CLOSE
GND(D)
M+
GND(M)
SOL
M_GND
MOTOR GND
SQOUT
COIN
DSP_RES
WRQ
RWC
CQCK
CD-LD(M–)
+5V
M
+B
+B
+B
M–
–
+
11
5
CD SIGNAL
CD-C421H / C411H
– 32 –
A
B
C
D
E
F
G
H
1
2
3
4
5
6
• NOTES ON SCHEMATIC DIAGRAM can be found on page 16.
Figure 32 SCHEMATIC DIAGRAM (6/11)
FW703
CNS703
C980
0.1
(ML)
C978
0.1
(ML)
C997
470P:411H
120P:421H
R972
4.7
R968
220
C966
47/50
R967
220
C965
100/50
CNP901
R961
33K
C948
3300/25
C942
47/16
C973
100/50
C974
0.022
F941
T500mA L 250V
C976
1000/25
R965
1K
C943
47/16
C961
0.0015
C946
0.1
(ML)
R969
10K
C970
47/50
C969
47/50
R973
270 (1/2W)
C979
0.1
(ML)
C977
0.1
(ML)
C
0
C
0
R971
4.7
R
2.2:4
3.3:4
C967
100/50
C963
1/50
C964
1/50
C947
0.1
(ML)
Q941
2SD2012 Y
C945
0.022
(ML)
IC941
KIA7812P
VOLTAGE REGULATOR
C975
1000/25
IC942
KIA7805P
VOLTAGE REGULATOR
R962
33K
C944
0.1
(ML)
C962
0.0015
IC961
LA4451:411H
LA4450:421H
POWER AMP.
C949
2200/50
R941
10K
R944
1 (1/2)
C941
0.022
C968
0.001
C972
0.001
R966
1K
8
9
5
6
7
11
10
6
7
8
9
5
4
1
2
3
4
5
6
7
3
2
1
1
2
3
4
5
6
7
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
3
1
3
2
2
D941
1SS133
D943
1SS133
D942
1SS133
+12V
+12V
–VP
VF2
VF1
+5V
+12V
POWER
+5V (UCOM)
+5V SERVO
(MECHA)
MAIN_L
MAIN_R
GND
A_GND
DRIVER
AUDIO
CHASSIS
GND (D)
LUG961
(258)
M_GND
D_GND
TO MAIN PWB(1/3)
A.P.SECTION
P29 12-C
TO DISPLAY PWB
P35 8-H
TO MAIN PWB(1/3)
A.P.SECTION
P29 12-D
TO MAIN PWB(1/3)
TAPE SECTION
P29 12-G
TO MAIN PWB(1/3)
MICON SECTION
P28 3-B
TO MAIN PWB(2/3)
CD SECTION
P29 11-E
TO MAIN PWB(1/3)
MICON SECTION
P28 5-B
TO MAIN PWB(1/3)
MICON SECTION
P28 1-F
TO MAIN PWB(2/3)
CD SECTION
P31 11-E
TO MAIN PWB(1/3)
TAPE SECTION
P28 1-F
MAIN PWB-A1(3/3)
R975
270
(1/2W)
+
+
–
–
FM SIGNAL
L942
1.5
µ
H
Page of 17
Display

Click on the first or last page to see other CD-C421H (serv.man4) service manuals if exist.

RANDOM: