Sharp CD-BA1200 (serv.man8) Service Manual ▷ View online
CD-BA1200H
– 20 –
Figure 20 SCHEMATIC DIAGRAM (1/10)
A
B
C
D
E
F
G
H
1
2
3
4
5
6
• NOTES ON SCHEMATIC DIAGRAM can be found on page 15.
42
41
40
39
38
37
36
LOADING M-
VCC4
LD_M+
LD_M-
LOADING M+
35
34
33
32
31
30
29
28
27
26
25
24
23
22
SPDO
VCC3
VCC2(SPN)
SP-
SP+
SPO
GND
+B
EFBL
B
P
A
AD
PH(RF
TDO
FDO
P
S
NC
TEST
HFL
TE
TE-
FE
FE-
RFEV
BH
PH
RF
RF-
RFSW
VCC
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
REF
ODRV
AGCON
ODRV
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
AGCON
ODRV
APC
LPF
DH
PH
LPF
LPF
PH/BH
LDON
EFBL
FIN1
FIN2
REF1
TIN2
TIN1
AGON
LDD
TEST0
GND
VREF
TES1
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
FIN2
FIN1
TIN2
TIN1
+B
+B
2
5
3
1
7
6
4
4
3
2
1
7
6
5
CD SERVO PWB-B
5
1
3
7
6
4
2
4
3
2
1
7
6
5
Vcc
C
Vref
F
B
E
A
LD
VR
PD
GND
FO-
FO+
TR+
TR-
5
2
1
2
3
4
5
6
7
8
8
3
6
7
1
4
TR-
TR+
FO+
FO-
GND
PD
VR
LD
ACTUATOR
FO+
FO-
TR-
TR+
1
2
3
4
5
6
7
8
8
3
6
7
1
4
5
2
PICKUP UNIT
GND(D)
PUIN
SP+
SP-
SL+
SL-
3
2
5
1
4
6
2
3
5
1
4
6
3
6
1
4
5
2
2
3
5
1
4
6
CD MOTOR PWB-C
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
SLDO
FDO
TDO
MUTE
Vref
STANDBY
VCC1
SL-
SL+
GND
TR+
TR-
FO-
FO+
FO
FD
TO
+B
+B
+
+
+
+
+
+
+
+
+
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+
+
+B
+B
+B
+B
+
-
-
+
M
M
+
+
+
+
R54 68K
R53 68K
R52 68K
R51 68K
CNP1
R56
68K
R55
68K
C6
100/10
100/10
C54
47/10
C55
0.01
0.01
C51
47/10
C53
0.001
R25
10K
10K
C7
10/16
10/16
C8
0.1
0.1
R47
3.3
Q3
KTA1266GR
LASER DRIVER
R50
47
C14
0.33
C13
0.01
R42
120K
R3
100K
R4
10K
C11
0.47/6.3
R6
27K
R7
6.8K
R5
39K
C12
0.1
C18
3P
(CH)
C19
100/10
R8
330
R10
27K
27K
C26
0.047
C22
100P
R80
1M
R79
1.5M
C24
2.2/50
C21
0.1
C23
0.047
R12
680
R1
1.2
R11
12K
12K
R13
680
C8
0.02
C27
0.1
C17
0.0047
R15
10K
C20
0.1
C42
68P
68P
C25
0.1
C41
100/10
C28
47/10
C82
0.022
R44
1K
C29
0.1
D93
DS1SS133
R43
220K
C47
100/16
C49
100/16
C50
100/16
C46
0.022
IC3
M63001FP
FOCUS/TRACKING/ SPIN/SLED DRIVER
R48
6.8K
C52
0.01
0.01
CNP2
CNP3
CNS3A
CNS3B
M1
SPINDLE
MOTOR
M2
SLED
MOTOR
SW4
PICKUP IN
IC1
LA9235M
SERVO AMP.
CNS1A
CNS1B
CNS2A
CNS2B
CNP3A
13
2
5
7
8
4
– 21 –
CD-BA1200H
Figure 21 SCHEMATIC DIAGRAM (2/10)
7
8
9
10
11
12
• The numbers
1
to
13
are waveform numbers shown in page 16.
CD SIGNAL
RES
WRQ
CE
DO
CL
DI
DRF
INT
+B
XVDD
RVSS
RCHO
RVDD
XIN
51
50
49
48
47
63
62
61
60
59
58
57
56
55
54
53
52
XOUT
XVSS
ASLRCK
ASDACK
ASDFIN
LRSY
DATACK
DATA
16M
SFSY
SBSY
PW
64
SBCK
CE
CL
DI
DO
INT
WRQ
SERIAL
OUT
EXTERNAL
AUDIO IN
DIGITAL
FILTER
1BIT
DAC
LPF
INTERPOLATION
MUTE
ATTENUATION
DEEMPHASIS
CLOCK
GENERATOR
SUBCODE
DECODE
CRC
DECODE
CRC
COMMAND
INTERFACE
AGND
R-CH
EMPH
MUTEL
MUTER
LVDD
LCHO
LVSS
+5V
DGND
1
2
3
4
5
+B
+B
CNS601
P22 1 - B
TO MAIN PWB
INT
DRF
WRQ
CE
DO
DI
CL
RES
DRF
GND
CD RES
DI
CLK
DO
CE
WRQ
CDINT
CLAMP SW
10
9
7
1
2
3
4
5
6
8
+B
+B
+B
P25 12 - B
CNS702
TO DISPLAY PWB
DISC_NO
O/C
GND(D)
M-
M+
CD LOADING
MOTOR PWB-E
MOTOR PWB-E
TEST
DOUT
VDD
C2F
PCK
40
39
38
37
36
35
34
33
32
31
30
29
28
27
EFLG
41
FSX
CONT5
CONT4
CONT3
CONT2
CONT1
LASER
+B
+B
+B
1
3
2
42
41
40
39
38
37
36
LOADING M-
VCC4
LD_M+
LD_M-
LOADING M+
35
34
33
32
31
30
29
28
27
26
25
24
23
22
SPDO
VCC3
VCC2(SPN)
SP-
SP+
SPO
GND
+B
+B
JITTC
JITTV
EFMIN
EFBL
FDO
TDO
TBLO
BHREF
PHREF
ADAVSS
ADAVDD
VREF
TE
FE
PH(RFENV)
BH
TDO
SLDO
SPDO
FDO
SPDO
FG(D_Vref)
SLDO
AUDIO
OUT
ERROR
CORRECT
GENERAL
SW
SERVO
PROCESSEROR
AUTO
ADJUST
S/H
JITER
DEFECT
CONTROL
A/D
SW
D/A
+B
+B
5
4
3
2
1
PCKIST
VVDD
VVSS
PD02
PD01
73
80 79 78 77 76 75 74
FRAME SYNC
DEFECT,PROTECT
EFM DECODE
DEFECT,PROTECT
EFM DECODE
CLV
CONTROL
CONTROL
GENERAL
SLICE
LEVEL
CONTROL
PLL
VCEC
VCEC
SLCO
SLCIST
HFL
FR
VDD5V
CONT7
CONT6
VSS
V/vP
FSEQ
DEFECT
EFMO
RES
DEF
O/C
DISC_NO
+B
72 71 70 69 68 67 66 65
11
10
9
8
7
6
24
23
22
21
20
19
18
17
16
15
14
13
12
-
+
+B
+B
+
-
1
2
3
4
5
6
6
5
4
3
2
1
5
4
3
2
1
M
6
L-CH
+B
+B
46
45
44
43
42
+B
26
25
+B
C19
100/10
R8
330
R10
27K
27K
C26
0.047
C22
100P
R80
1M
R79
1.5M
C24
2.2/50
C21
0.1
C23
0.047
R12
680
R14
1.2K
R11
12K
12K
R13
680
C81
0.022
C27
0.1
C17
0.0047
R15
10K
C20
0.1
C42
68P
68P
C25
0.1
C41
100/10
C28
47/10
C82
0.022
R44
1K
C29
0.1
D93
DS1SS133
R43
220K
R35
1K
R38
270
R39
470
R16
10K
10K
R17 1K
R46 1K
R45 1.2K
R40 1.2K
C31
100/10
C30
0.1
L61
0.82
µ
H
C64
0.47/6.3
ZD61
DZ3.9BSB
R19
47
C39
10/16
R58
220
Q1
KTC3203Y
CONSTANT VOLTAGE
C56
330/6.3
C83
0.022
R84
10K
C40
0.0015
C43
0.0015
R83
10K
C34
0.022
R82
2.2K
R81
2.2K
C38
10/16
R20
220
XL1
16.9344MHz
C45
100/10
C44
0.1
C80
0.1
R73 1K
R71 1K
C72 0.01
R72 1K
C71 100P
C73 100P
C75 100P
C76 100P
C77 100P
C78 100P
R75 1K
R76 1K
R77 1K
R78 1K
C74 100P
R74 1K
L62
2.2
µ
H
R94
10K
10K
R95
10K
10K
R67 1K
R68 1K
IC2
LC78641E
SERVO/SIGNAL
CONTROL
CNP11
CNP12
CNP4
SW3
DISC
NUMBER
SW2
CLAMP
SW1
OPEN/
CLOSE
D21
DS1SS133
R21
470
R22
470
Q2
KRC102M
D22
DS1SS133
C47
100/16
BI4
CNS4
M3
T/T
T/T
UP/DOWN
LOADING
1
6
9
13
2
10
11
12
3
7
8
CD-BA1200H
– 22 –
A
B
C
D
E
F
G
H
1
2
3
4
5
6
• NOTES ON SCHEMATIC DIAGRAM can be found on page 15.
Figure 22 SCHEMATIC DIAGRAM (3/10)
24
23
22
21
20
19
18
17
16
15
14
11
10
9
8
7
6
5
4
3
2
1
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
+5V
GND
L
GND
R
M_GND
+B
+B
P26 1 - G
TO POWER PWB
(CD_GND)
(A_GND)
+5v +B
+B
+B
CD_GND
REC_R
L-CH
A_GND
R-CH
TAPE1_R
TAPE1_L
A_GND
A_GND
ERASE
TAPE2_R2
TAPE2_R1
TAPE2_L1
0V
0V
0.7V
0.7V
3
1
7
6
5
4
3
2
1
2
3
1
2
L
R
ALC
ALC
RIPPLE
Nor/CrO2
-
+
-
+
Hich=T1
+ +
-
-
Hich=CHROME
56K
112K
56K
112K
CD
TUN
DECK
AUX
LSEL0
- +
- +
- +
-
+
-
+
-
+
-
+
-
+
CCB
INTERFACE
R1
R2
R3
R4
RSEL0
RIN
RTRE
RBASS
ROUT
VREF
VDD
CLK
L1
L2
L3
L4
LIN
LTRE
LBASS
LOUT
VSS
CE
DI
TAPE2_L2
3
1
2
5
4
3
1
2
5
4
17
4
18
12
19
2
3
1
1
3
2
CNP11
TO CD SERVO
PWB
P21 12 - D
CNS102B
CNS102A
CNS101B
CNS101A
R-CH
L-CH
PLAYBACK
HEAD
TAPE1
RECORD/
PLAYBACK HEAD
TAPE2
R-CH
L-CH
ERASE
HEAD
HEAD
3
1
2
3
1
2
7
6
5
4
3
2
1
7
6
5
4
3
2
1
7
6
5
4
3
2
1
FM SIGNAL
PLAYBACK SIGNAL
RECORD SIGNAL
RECORD SIGNAL
CD SIGNAL
SWITCHING
SWITCHING
SWITCHING
SWITCHING
SWITCHING
SWITCHING
SWITCHING
SWITCHING
SWITCHING
MUTING
M
SYSTEM MUTE
SYSTEM MUTE
BI601
CNS601
Q602
2SC3331
2SC3331
C602
0.001
0.001
C601
0.001
0.001
Q601
2SC3331
2SC3331
R603
1.8K
1.8K
R604
1.8K
1.8K
R607
2.2K
2.2K
R608
2.2K
2.2K
R609
10K
10K
R610
10K
10K
R602
330
330
R601
330
D902
1SS133
C603
22/25
22/25
R625
22K
22K
R615
3.9K
3.9K
C607 10/50
C609
0.1(ML)
0.1(ML)
C611
0.1(ML)
0.1(ML)
C623
1/50
1/50
C629 1/50
C617 1/50
C613 0.0027
C625
1/50
1/50
C627
1/50
1/50
R617
3.3K
3.3K
C633
0.001
0.001
IC601
LC75341
AUDIO PROCESSOR
C630
1/50
1/50
C605
0.022
0.022
C604
100/25
100/25
C610
0.1(ML)
0.1(ML)
C612
0.1(ML)
0.1(ML)
C618
1/50
1/50
R616
3.9K
3.9K
C614
0.0027
0.0027
C608
10/50
10/50
C606
22/50
22/50
C628
1/50
1/50
C626
1/50
1/50
C624
1/50
1/50
R618
3.3K
LUG1
MECHA BASE GND
MECHA BASE GND
R102
10K
10K
R101
10K
10K
R103
4.7K
4.7K
Q101
KTA1266 GR
KTA1266 GR
C101
0.047
0.047
R157
100
100
Q102
KRC104 M
KRC104 M
C108
100/16
100/16
R104
1K
1K
R137
15K
15K
Q103
KRC104 M
KRC104 M
C103
560P
560P
C102
560P
560P
CNP101
Q104
2SC1845F
2SC1845F
C104
180P
180P
R105
1K
1K
R106
2.2K
2.2K
R110 47K
R108
3.3K
3.3K
Q106
2SC1845F
2SC1845F
CNP102
Q105
2SC1845F
2SC1845F
C105
180P
180P
R107
2.2K
2.2K
R109
3.3K
3.3K
Q107
2SC1845F
2SC1845F
R113
47K
Q109
2SC3331
C107
560P
560P
R111
4.7K
R112 4.7K
C106
560P
Q108
2SC3331
C123
1/50
1/50
R123
5.6K
5.6K
C121
560P
560P
R119
100K
100K
R121
3.9K
3.9K
C119
0.033
0.033
C117
100/25
100/25
C115
330P
330P
C137
0.022
0.022
R125
33K
R138
15K
15K
R117
56
56
R115
1K
1K
C113
330P
330P
R131 1.5K
C131
0.022
R127
6.8K
R135
10K
10K
C133 0.0033
R129 3.9K
C135
47/25
47/25
C129
22/25
22/25
C127 270P
R133
100
C139
3.3/50
3.3/50
C138
220/10
C136 22/25
C146
0.001
C122
1/50
1/50
C116
100/25
100/25
C120
560P
560P
R120
3.9K
3.9K
C118
0.033
0.033
R118
100K
100K
R124
33K
33K
C128
22/25
22/25
R128
6.8K
C126
270P
R132
1.5K
R126 68K
C134
47/25
R134
100
R136
10K
C112
330P
330P
C130
0.022
R130
3.9K
R116
56
56
C114
330P
330P
C132
0.0033
R114
1K
1K
R122
5.6K
5.6K
R140
10K
10K
Q110
2SC3331
2SC3331
R142
220K
220K
R141
10K
10K
Q
2S
2S
IC101
AN7345K
IC101:PLAYBACK AND RECORD/
PLAYBACK AMP.
L101
2.2mH
2.2mH
L102
2.2mH
2.2mH
– 23 –
CD-BA1200H
Figure 23 SCHEMATIC DIAGRAM (4/10)
7
8
9
10
11
12
18
17
16
15
14
13
12
11
10
9
8
7
24
23
22
21
20
19
18
17
16
15
14
13
-VP
GND
A_10V
M_10V
A_10V
GND
GND
GND
VF2
VF1
POWER
CE
DO
UN_SW_5V
CLK
DI
TUN_L
TUN_R
(A_GND)
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
(D_GND)
POWER
P26 1 - G
TO POWER PWB
(M_GND)
(D_GND)
M_GND
UN_SW 5V
SW_5V
AC_RLY_CONT
D_GND
M_10V
VF1
VF2
-VP
T_BIAS
SMUTE
REC/PLAY
T_T1/T2
CE
SM
DI
CLK
DO
REC_L
REC_R
P29 12 - H
TO TUNER PWB
0V
0V
0.7V
0.7V
0V
0V
0V
11.7V
11.6V
11.6V
0V
2
1
3
0V
0V
0V
0V
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
AC_RLY_CONT
SW_5V
SM
21
20
Vcc
ALC
GND
ALC
RIPPLE
Nor/CrO2
+
+
-
-
Hich=CHROME
56K
56K
R1
R2
R3
R4
L0
RIN
TRE
SS
OUT
REF
DD
CLK
10
4
5
7
6
9
2
3
8
1
5
15 14 16
21
10 12 22 11 13 20
1
21
1
CNP701
P25 12 - D
TO DISPLAY PWB
MAIN PWB-A1(1/3)
MUTING
MUTING
SWITCHING
BIAS
BIAS OSC
C630
1/50
1/50
C605
0.022
0.022
C604
100/25
100/25
C610
0.1(ML)
0.1(ML)
C612
0.1(ML)
0.1(ML)
C618
1/50
1/50
R616
3.9K
3.9K
C614
0.0027
0.0027
C608
10/50
10/50
C606
22/50
22/50
C628
1/50
1/50
C626
1/50
1/50
C624
1/50
1/50
R618
3.3K
R131 1.5K
C131
0.022
6.8
K
R135
10K
10K
C133 0.0033
R129 3.9K
C135
47/25
47/25
C129
22/25
22/25
C127 270P
R133
100
C148
0.047
0.047
Q112
KTA1266 GR
R148
22K
22K
R146
82
(1/2W)
82
(1/2W)
L103
100
100
µ
H
R147
47K
47K
Q114
KTC3203 Y
KTC3203 Y
C141
0.039
(ML)
0.039
(ML)
R149
4.7
4.7
L104
330
330
µ
H
C142
47/25
47/25
C140
0.0082
(PP)
0.0082
(PP)
Q113
KRC104 M
KRC104 M
R144
47K
47K
R145
4.7K
4.7K
C145
470P
R139
180
C138 220/10
C136 22/25
C128
22/25
22/25
6
.8K
C126
270P
R132
1.5K
C134
47/25
R134
100
R136
10K
C130
0.022
3.9K
C132
0.0033
R143
220K
220K
R140
10K
10K
Q110
2SC3331
2SC3331
R142
220K
220K
R141
10K
10K
Q111
2SC3331
2SC3331
1
5K
5K
CNP701
FCC21