Sharp CD-BA2000 (serv.man7) Service Manual ▷ View online
– 23 –
CD-BA2000H
Figure 23 BLOCK DIAGRAM (3/3)
D801
RY801
VLOAD
+B7
SYS. STOP
RESET
IC703
KIA7042P
RESET
Q709
Q910
+B5
M901
FAN MOTOR
M
SUB
WOOFER
WOOFER
MAIN
SO901
SPEAKER
TERMINAL
RY902
RY901
Q909
+B7
+B7
+B7
+B7
+B3
+B7
VDD
VDD
VDD
+B6
LCK
CL
DI
Q801
+B4
-B2
R
R
L
L
Q901
Q902
Q903
Q904
L-OUT
R-OUT
R-OUT
L-OUT
SP. DET.
Q905
Q906
Q907
Q908
UNSWITCH 5V
CD+B
+5V
A10V
M10V
+B7
+B5
+B6
+B4
+B3
Q821
IC801
KIA7805P
VOLTAGE
REGULATOR
IC802
KIA7810AP
VOLTAGE
REGULATOR
Q823
SYSTEM
MUTE
Q605
Q606
Q606
CE
DI
CL
DO
XL701
IC903
KIA4558P
OPE AMP.
Q802
D812-D815
T802
POWER
TRANSFORMER
D804-D807
D803
D802
IC702
BU2902F
INPUT/OUTPUT
EXPANDER
F805
T2A L 250V
+Vcc
STK402-071
F801
T4A L 250V
F800
T4A L 250V
F803
T5A L 250V
F802
T5A L 250V
-Vcc
-Vcc
+Vcc
IC901
POWER AMP.
IC902
STK402-040
POWER AMP.
BIAS
T1/T2
REC
AVDD
KEY
SW701-SW716
SW722-SW729
SW731-SW734
SW722-SW729
SW731-SW734
TO CD
SECTION
SECTION
Q701-Q703
Q710-Q712
Q710-Q712
AC POWER
SUPPLY CORD
IC701
IX0333AW
SYSTEM CONTROL
MICROCOMPUTER
FL701
DISPLAY
1
3
2
7
4
6
1
8
2
3
5
18
85
80
33
31
1
2
3
45
1 2 3
5
7
13
9 10
15 16
17
20 21 22 23 24
25
86
91
92
79
78
60
59
39
38
36
34
1
15
10
7
13
9
8
10
1
15
8
9
13
7
12
13
4
2
1
3
7
1
27
28
3
6
2
15
1
20
53
56 57 58
T.F
CONSTANT
VOLTAGE
REGULATOR
~
~
~~~
~
11 12
100
58 57 56 55 54 53 52 51 50 49 48 47 46
44 43 42 41 40
37
35
JK601
HEADPHONES
HEADPHONES
14
~
~
~
29
14
8
5
~
+B4
RESET
T801
POWER TRANSFORMER
AC 230V
50Hz
50Hz
L801
LINE
LINE
FILTER
R
L
+B1
VF2
VF1
-VF
CONSTANT
VOLTAGE
-B2
+B2
-B1
R
L
DRIVER
JOG701
JOG
RX701
REMOCON
SENSOR
10Hz
IC701
IX0332AW
SYSTEM
MICROCOMPUTER
63Hz
P
CD-BA2000H
– 24 –
Figure 24 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 19.
CD SIGNAL
GND(D)
PUIN
SP-
SP+
SL+
SL-
CD MOTOR PWB-D
PICKUP UNIT
TR-
TR+
FO+
FO-
GND
ACTUATOR
FO+
FO-
TR-
TR+
PD
VR
LD
LD
VR
PD
GND
FO-
FO+
TR+
TR-
5
2
1
2
3
4
5
6
7
8
8
3
6
7
1
4
1
2
3
4
5
6
7
8
8
3
6
7
1
4
5
2
Vcc
C
Vref
F
B
E
A
2
5
3
1
7
6
4
4
3
2
1
7
6
5
5
1
3
7
6
4
2
4
3
2
1
7
6
5
FIN2
FIN1
TIN2
TIN1
+B
FIN1
FIN2
TIN1
LDON
EFBL
REF1
AGON
LDD
TEST0
GND
VREF
TES1
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
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
PH
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
VCC3
VCC2(SPN)
SP-
SP+
SPO
GND
+B
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
M
M
R54 68K
R53 68K
R52 68K
R51 68K
CNP1
R56
68K
R55
68K
C6
100/6.3
100/6.3
TIN2
C54
47/10
C55
0.01
0.01
C51
47/10
C53
0.001
R25
10K
10K
C7
10/16
C8
0.022
R47
3.3
Q3
KTA1266 GR
LASER
DRIVER
R50
47
C14
0.33
C13
0.01
R3
47K
R4
10K
C11
47/6.3
R6
27K
R7
6.8K
R5
39K
C12
0.022
C18
3P
(CH)
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
R
1
R11
12K
12K
R
6
0
C27
0.1
C17
0.0047
R15
10K
C20
0.1
C42
68P
68P
(CH)
C41
100/6.3
C28
47/10
C82
0.022
R4
1K
0
EFBL
TDO
FDO
C47
100/6.3
LOADING M-
VCC4
LD_M+
LD_M-
LOADING M+
SPDO
C49
100/16
C50
100/6.3
C46
0.022
IC3
M63001FP
FOCUS/TRACKING/ SPIN/SLED DRIVER
R48
6.8K
R96
1.5K
C52
0.01
0.01
CNP2
CNP3
CNS3A
CNS3B
+
-
-
+
3
2
5
1
4
6
2
3
5
1
4
6
M1
SPINDLE
MOTOR
M2
SLED
MOTOR
SW4
PICKUP IN
IC1
LA9235M
SERVO AMP.
CD SERVO PWB-C
CNS1A
CNS1B
CNS2A
CNS2B
3
6
1
4
5
2
2
3
5
1
4
6
CNP3A
+B
+B
+B
+B
+B
- +
-
+
+
-
+
-
-
+
-
+
+
-
+ -
-
+
+
-
-
+
+
-
+ -
-
-
+
+
R42
120K
13
2
5
8
4
– 25 –
CD-BA2000H
Figure 25 SCHEMATIC DIAGRAM (2/10)
7
8
9
10
11
12
• The numbers
1
to
13
are waveform numbers shown in page 20.
11
10
9
8
7
6
5
4
3
2
1
PCKIST
JITTC
JITTV
EFMIN
SLCO
SLCIST
HFL
FR
VVDD
VVSS
PD02
PD01
24
23
22
21
20
19
18
17
16
15
14
13
FDO
TDO
TBLO
BHREF
PHREF
ADAVSS
ADAVDD
VREF
TE
FE
PH(RFENV)
BH
12
SPDO
FG(D_Vref)
SLDO
TEST
DOUT
VDD
C2F
PCK
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
EFLG
51
50
49
48
47
46
45
44
43
42
41
63
62
61
60
59
58
57
56
55
54
53
52
64
FSX
CONT5
CONT4
CONT3
CONT2
CONT1
LASER
SERIAL
OUT
EXTERNAL
AUDIO IN
DIGITAL
FILTER
1BIT
DAC
LPF
INTERPOLATION
MUTE
ATTENUATION
DEEMPHASIS
AUDIO
OUT
ERROR
CORRECT
CORRECT
FRAME SYNC
DEFECT,PROTECT
EFM DECODE
DEFECT,PROTECT
EFM DECODE
CLV
CONTROL
CONTROL
CLOCK
GENERATOR
GENERAL
SUBCODE
DECODE
CRC
DECODE
CRC
COMMAND
INTERFACE
GENERAL
SW
SERVO
PROCESSEROR
PROCESSEROR
AUTO
ADJUST
-
+
S/H
JITER
DEFECT
CONTROL
A/D
SW
SLICE
LEVEL
CONTROL
PLL
VCEC
VCEC
D/A
+B
EMPH
MUTEL
MUTER
LVDD
LCHO
XVDD
LVSS
RVSS
RCHO
RVDD
XIN
XOUT
XVSS
ASLRCK
ASDACK
ASDFIN
LRSY
DATACK
DATA
16M
SFSY
SBSY
PW
SBCK
CE
CL
DI
DO
INT
WRQ
RES
DEF
VDD5V
73 72 71 70 69 68 67 66 65
CONT7
CONT6
VSS
V/vP
FSEQ
EFMO
80 79 78 77 76 75 74
O/C
DISC_NO
+5V
DGND
AGND
L-CH
R-CH
+B
P26 2 - A
TO MAIN PWB
1
2
3
4
5
CNS601
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
+B
+B
P29 10 - A
CNS703
TO DISPLAY PWB
CONSTANT
VOLTAGE
DISC_NO
O/C
GND(D)
M-
M+
1
2
3
4
5
6
6
5
4
3
2
1
5
4
3
2
1
6
CD LOADING
MOTOR PWB-F
MOTOR PWB-F
1
3
2
+B
VCC3
VCC2(SPN)
SP-
SP+
SPO
GND
+B
M
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
(CH)
C41
100/6.3
C28
47/10
C82
0.022
R44
1K
C29
0.022
EFBL
R35
1K
R38
270
TDO
SLDO
SPDO
FDO
R39
470
R16
1K
R17 1K
R46 1K
R45 1.2K
R40 1.2K
C31
100/6.3
C30
0.022
L61
0.82
µ
H
C64
47/6.3
ZD61
DZ3.9BSB
R19
47
C39
10/16
R58
220
Q1
KTC3203 Y
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
100/6.3
C44
0.022
C80
0.022
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
RES
WRQ
CE
DO
CL
DI
DRF
INT
R94
10K
10K
R95
10K
10K
R67 1K
R68 1K
CNP11
CNP12
CNP4
SW3
DISC
NUMBER
SW2
CLAMP
SW1
OPEN/
CLOSE
+
-
M3
T/T
T/T
UP/DOWN
LOADING
D21
DS1SS133
R21
470
R22
470
Q2
KRC102M
D22
DS1SS133
C47
100/6.3
LOADING M-
VCC4
LD_M+
LD_M-
LOADING M+
SPDO
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
BI4
CNS4
IC2
LC78641E
SERVO/SIGNAL
CONTROL
1
6
9
13
2
10
11
12
3
7
8
CD-BA2000H
– 26 –
A
B
C
D
E
F
G
H
1
2
3
4
5
6
• NOTES ON SCHEMATIC DIAGRAM can be found on page 19.
Figure 26 SCHEMATIC DIAGRAM (3/10)
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
24
23
22
21
20
19
18
17
16
15
14
11
10
9
8
7
6
5
4
3
2
1
CD
TUNER
DECK
AUX
DI
CE
VSS
LOUT
LBASS
LTRE
LIN
L4
L3
L2
L1
CLK
VDD
VREF
ROUT
RBASS
RTRE
RIN
RSEL0
R4
R3
R2
R1
CCB
INTERFACE
+
-
+
-
-
+
-
+
-
+
-
+
-
+
-
+
-
LSEL0
ALC
ALC
RIPPLE
Nor/CrO2
-
+
-
+
Hich=T1
+
+
-
-
Hich=CHROME
56K
112K
56K
112K
REC_
0V
L
AC_RLY
CON
CON
VF1
VF2
-VF
UN_SW
5V
5V
M_+10V
+5V
SP_RLY
SP_DET
D_GND
-15V
-B
+B
+B
+B
+B
+B
+B
+B
+B
+B
-B
-B
A_+10V
CD_+B
CD_GND
M_GND
A_GND
A_GND
R_CH
L_CH
CHASIS
MECHA BASE
L
R
R
CD_+B
TO CD SERVO PWB
P25 12-D
CD_GND
L-CH
A_GND
R-CH
9.3V
8.6V
9.3V
0V
2
1
3
1
2
3
3.4V
3.4V
0V
0V
0V
0V
0.7V
0.7V
0V
0V
0V
0.7V
0V
0V
0V
0.7V
0V
0V
0V
0V
0V
0.7V
7
6
5
4
3
2
1
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
3
1
3
4
4
3
1
2
5
2
1
5
2
CNP11
TO POWER SUPPLY
P30 1-D
CNS901
FM SIGNAL
PLAYBACK SIGNAL
RECORD SIGNAL
CD SIGNAL
VIDEO SIGNAL
PLAYBACK SIGNAL
RECORD SIGNAL
CD SIGNAL
VIDEO SIGNAL
A_GND
M_GND
ERASE
T2_R2
T2_R1
T2_L1
T2_L2
T2_L2
7
6
5
4
3
2
1
T1_R
T1_L
A_GND
3
1
2
R-CH
L-CH
PLAYBACK
HEAD
TAPE1
RECORD/
PLAYBACK HEAD
TAPE2
R-CH
L-CH
ERASE
HEAD
HEAD
R607
10K
C613
10/50
R613 390
R615
2.2K
R611 5.6K
Q603
KTC3199 GR
R621
2.2K
Q605
KTC3199 GR
R609
330
R610
330
Q606
KTC3199 GR
C636
0.001
C635
0.001
R622
2.2K
R612 5.6K
Q604
KTC3199 GR
C615
0.001
C616
0.001
R616
2.2K
R614 390
C618 22/25
R620 22K
C617 1/50
R619
22K
C649
0.001
C641
0.0033
(ML)
R617
3.3K
C645
0.0022(ML)
C625
10/50
C627
10/50
C629
10/50
C623
10/50
C621
4.7/50
C619
1/50
C611
0.0027
(ML)
R605
3.9K
C607
0.1
(ML)
C609
0.1
(ML)
C606 100/16
C604 0.022
AUDIO
C608
0.1
(ML)
C610
0.1(ML)
C620
1/50
C6
4.7
C
1
1
C626
10/50
C62
10/5
C630
10/50
R155
150
R113
10K
R114
10K
R115
4.7K
Q109
KTA1266 GR
Q111
KRC104 M
Q110
KRC104 M
C153 100/16
R112
15K
R102
1K
R101
1K
C101
560P
C102
560P
C106
180P
Q104
2SC1845 F
R104
2.2K
Q106
2SC1845 F
R106
3.3K
R110
4.7K
R108
47K
Q108
KTC3199 GR
KTC3199 GR
C108
560P
C112
330P
330P
R118
1K
C114
330P
R122
100K
C118
0.033
C116
100/25
R120
56
C120
560P
R124
3.9K
C122
1/50
R126
5.6K
R132 33K
R134
68K
R136
3.9K
R138 6.8K
C132 270P
C134
22/25
R140
1.5K
R142
100
C140
0.0033
C142 47/25
R146
10K
Q122
KTC3199GR
R156
220K
220K
R154
10K
R153
10K
Q
KTC
C136
0.022
L105 2.2
µ
H
C145 22/25
C146
220/10
R145
10K
C141
47/25
C133
22/25
R141
100
C139 0.0033
R139 1.5K
C131
270P
R137
6.8K
R135
3.9K
C128
3.3/50
C127
0.022
R131 33K
C121
1/50
R125
5.6K
R123
3.9K
C119
560P
R121
100K
C117
0.033
C115
100/25
R119
56
L106
2.2
µ
H
C113
330P
R117
1K
C111
330P
330P
C107 560P
Q107
KTC3199 GR
R109
4.7K
R107
47K
R105
3.3K
R103
2.2K
Q103
2SC1845 F
Q105
2SC1845 F
C105
180P
180P
CNP102
CNP101
LUG101
CNP901
C135 0.022
R111
15K
IC101
AN7345K
PLAY BACK AND RECORD/
PLAYBACK AMP.
BI601
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