Sharp CD-BA250 (serv.man6) Service Manual ▷ View online
CD-BA250H/CD-BA2600H
– 22 –
Figure 22 SCHEMATIC DIAGRAM (1/9)
A
B
C
D
E
F
G
H
1
2
3
4
5
6
• NOTES ON SCHEMATIC DIAGRAM can be found on page 39.
CD SIGNAL
CD MOTOR PWB-F
CD SERVO PWB-C
4
1
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
8
7
6
5
4
3
2
9
10
11
12
13
14
15
16
17
18
19
11
12
13
14
15
16
17
18
19
20
8
7
6
5
4
3
2
1
TP3
TP2
TP1
L
VCC4
M–
M+
VCC3
SPO
VCC2
SLDO
VCC
STANDBY
VREF
MUTE
FD
SP–
SL–
SL+
SP+
TR–
TR+
FO+
FO–
GND
GND
GND
FO–
FO–
LD
VR
PD
FO+
TR+
TR–
C
F
B
A
E
GND
PUIN
SL+
SL–
SL–
SP–
SP+
VREF
VCC
PICKUP UNIT
TR–
TR–
TR+
TR+
TR+
FO+
FO+
FO–
PD
VR
LD
F
C
B
A
E
VCC
VREF
SLIDE
SPIN
+
+
–
–
PU-IN
1
2
3
4
5
6
2
3
4
5
6
1
2
3
4
5
6
2
3
4
5
6
5
3
6
2
7
1
4
5
3
6
2
7
1
4
5
3
6
2
7
1
4
5
3
6
2
7
1
4
4
1
3
6
5
5
2
4
1
3
6
5
5
2
M
M
4
8
5
2
1
7
3
6
4
8
5
2
1
7
3
6
4
8
5
2
1
7
3
6
4
8
5
2
1
7
3
6
+
+
–
–
+ –
+
+
–
–
+–
+–
+ –
2
CNP1
CNS1A
CNS1B
R6
33K
R5
12K
R4
12K
R3
33K
R1 12K
R2
12K
C1
47/25
C2 0.01
CNP2
CNS2A
CNS2B
C38
0.01
C39
100/10
R44
12K
C41
100/10
CNP3
CNS3A
CNS3B
R13 1K
R14
C12
100P
C11
0.22/50
C10
10/50
C9
100/10
C50
22P
22P
(CH)
R12
330
C7
100P
R10
27K
C5
0.047(ML)
R11
10K
R9 3.3
Q1
KTA1266 GR
C4
0.001
C49
47/25
C3
47/25
C8
0.0047
C6
0.1
IC2
M63001FP
FOCUS/TRACKING/
SPIN/SLED DRIVER
C40
220/6.3
R7
47
M1
SPINDLE
MOTOR
M2
SLED
MOTOR
SW4
PICKUP IN
LASER
DRIVER
– 23 –
CD-BA250H/CD-BA2600H
Figure 23 SCHEMATIC DIAGRAM (2/9)
7
8
9
10
11
12
• The numbers
1
to
12
are waveform numbers shown in page 40.
CD RES
O/C, DISC NO
CLAMP SW
FROM
DISPLAY PWB
P29 9-A
CL
DI
DO
CE
DRF
WRQ
FROM
MAIN PWB
P24 1-A
8
3
5
7
12
11
10
9
6
4
1
39 40 41 42
4
3
2
1
9
10
11
12
13
14
15
16
17
18
19
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
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61
41
42
43
44
45
46
47
48
49
50
51
52
53
55
56
57
58
59
60
54
8
7
6
5
4
3
2
1
TP1
LD_M+
LD_M–
VCC4
M+
TO
FD
FO+
M
+5 V
LDD
LDS
FR
VVDD
PCKIST
VVSS
PDO2
PDO1
CONT2
CONT3
VSS
VDD5
DRF
*RES
*WRQ
DO
DI
CL
CE
DATA
DATACK
LRSY
ASDFIN
ASDACK
ASLRCK
16MOUT
EFLG
C2F
XVSS
FSX/16MIN
XIN
XOUT
XVDD
XVDD
RVDD
RCHO
RVSS
LVSS
LCHO
LVDD
TEST
DOUT
VDD
VSS
MONI5
MONI4
MONI3
MONI2
MONI1
FSEQ
V/*P
DEFECT
SBCK/FG
CONT5
CONT4
GPDAC
SLDO
SPDO
FDO
TDO
REF1
VREF
ADAVSS
ADAVDD
JITTC
RFMON
TE
TEC
FE
TIN2 F
TIN1 E
FIN2 B
FIN1 A
RSVSS
RFVDD
RF
EFMIN
SLCIST
SLCO
+5 V
DGND
L-CH
AGND
R-CH
6
3
5
4
2
6
1
3
5
4
2
6
1
3
5
4
2
6
1
1
2
3
4
8
6
5
5
7
9
5
4
3
2
1
3
1
2
CNS8
CNS601
CD LOADING
MOTOR PWB-E
2
R49
1
D2
DS1SS133
D1
DS1SS133
Q3
KRC102 M
R45
470
R46
470
R20
10K
R13 1K
R14 1K
R15
1K
R16 1K
R18 1K
R17
1K
P
C11
0.22/50
C10
10/50
2
C5
47(ML)
R11
10K
C33
100P
C32
100P
C30
100P
C28
100P
C27
0.022
R42 1.2K
R41 12K
C37
0.1
C36
2.2/50
R40
680
R31 1K
R29
2.2K
R28
2.2K
R43
100
XL1
33.8688 MHz
33.8688 MHz
R22
100
C51
0.022
L1
0.82
µ
H
C24
10/50
R25
2.2K
R27
10K
ZD1 DZ3.3BSB
C13
0.022
R26
10K
10K
C25
0.0015
C23
10/50
C44
0.001
R24
2.2K
C16
330/6.3
C48
0.022
R23
220
ZD2
DZ3.9BSB
R30
8.2K
R19
15K
CNP4
CNS4
BI4
CNP8
IC1
LC78645E
CD SERVO
R47
100
C18
100/10
Q2
KTC3203 Y
C26
0.0015
C14
100/10
R32 1K
R37 1K
R36 1K
R35 1K
R34 1K
R33 1K
R36 1K
R35 1K
R34 1K
R33 1K
R38 1K
C8
047
R39 680
C35 0.047 (ML)
C34
100P
CNP7
M3 T/T
UP DOWN
LOADING
SW1
OPEN/CLOSE
SW2
CLAMP
SW3
DISC NO.
CONSTANT
VOLTAGE
CD-BA250H/CD-BA2600H
– 24 –
A
B
C
D
E
F
G
H
1
2
3
4
5
6
• NOTES ON SCHEMATIC DIAGRAM can be found on page 39.
Figure 24 SCHEMATIC DIAGRAM (3/9)
0.7 V
0 V
0 V
0 V
0.7 V
0 V
0 V
0 V
0 V
0 V
0 V
0.7 V
0.7 V
0 V
0 V
0 V
0 V
0 V
0.7 V
0.7 V
0
9.3 V
8.6 V
9.3 V
0 V
2
1
3
1
2
3
3.4 V
3.4 V
0 V
0 V
0 V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
17
18
19
20
21
MAIN PWB-A1(1/3)
TO POWER SECTION
P26 1-G
TO CD SERVO PWB
P23 12-C
CNP7
A_GND
M_GND
ERASE
T2_R2
T2_R1
T2_L1
T2_L2
1
2
3
4
5
6
7
T1_R
T1_L
A_GND
3
2
1
–15 V
VF1
VF2
–VP
P_IN
M_+12 V
A+10 V
GND
GND
SW_5 V
L-CH
R-CH
SW_5 V
SW_5 V
GND
GND
GND
SP_RLY
SP_DET
(A_+B)
CD_+B
A_+B
CD_+B
CD_GND
L-CH
A_GND
R-CH
3
4
5
6
1
2
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
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
INTERFACE
CCB
+
–
+
–
–
+
-
+
–
+
–
+
–
+
-
+
–
LSEL0
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
L
R
Vcc
ALC
GND
ALC
RIPPLE
Nor/CrO2
–
+
–
+
Hich=T1
+ +
–
–
Hich=CHROME
56K
112K
56K
112K
L
R
REC_R
+B
+B
+B
+B
+B
+B
-B
-B
IC101
AN7345K
3
2
1
7
6
5
4
3
2
1
TAPE2
RECORD/
PLAYBACK HEAD
ERASE HEAD
R-CH
L-CH
TAPE1
PLAYBACK HEAD
L-CH
R-CH
Q112~Q114 : SWITCHING
Q101~Q106 : SWITCHING
Q107,Q108 : MUTING
C651
220P
C652
220P
C650
220P
C121 0.022
R146
10K
C141 100/16
R149
150
C133 22/50
C134 220/10
C603
22/50
R60
3.9K
R602
1K
R618
330
R619
330
BI601
CNS601
R604
10K
C610
1/50
C135
0
022
C601 220/16
C612
0.0027
C614
1/50
C616
4.7/50
C618
1/50
C620
1/50
C624
1/50
C622
1/50
R601
1K
R621 22K
C639 1/50
R614 3.3K
R615 3.3K
R611
2.2K
Q601
KTC3199 GR
R613 390
C636
0.001
R610
2.2K
Q602
KTC3199 GR
R612
390
C635
0.001
R620 22K
C640 22/50
Q604
KTC3199 GR
Q603
KTC3199 GR
C637
0.001
C638
0.001
R616
2.2K
R617
2.2K
CNP102
C106 560P
R130 1.5K
R112 15K
C108
330P
330P
Q102
2SC1845 F
Q104
2SC1845 F
Q112
KTA1266 GR
Q101
2SC1845 F
R103
2.2K
R106
3.3K
R104
2.2K
R105
3.3K
Q103
2SC1845 F
R119
3.9K
R117
100K
R139
10K
Q107
KTC3199 GR
R138
10K
Q108
KTC3199 GR
R147
10K
C136
0.022
Q113
KRC104 M
R111
15K
C113
0.033
R123
5.6K
C117 47/25
C115 560P
C111
100/25
R120
3.9K
R118
100K
R124
5.6K
C114
0.033
C116
560P
C118 47/25
R116
56
C112
100/25
R126 3.9K
R122 33K
C120 0.0022
R121 33K
C119 0.0022
R127 3.9K
R125 68K
R132
100
C127 0.022
C123 270P
C126
22/50
L102
2.2
µ
H
C128 0.022
C130 0.0033
R102
1K
Q114
KRC104 M
R128 6.8K
C122 3.3/50
R129 6.8K
C131 47/25
C129 0.0033
R133 100
C125
22/50
R131 1.5K
C101
560P
R101
1K
C132
47/25
C103
180P
C104
180P
R107 47K
C102
560P
C124 270P
R114
1K
R109 4.7K
C105 560P
R137
220K
R148
4.7K
C110
330P
Q106 KTC3199 GR
R134
10K
R110 4.7K
L101 2.2
µ
H
R113
1K
C109
330P
C107
330P
330P
Q105
KTC3199 GR
R135 10K
R115
56
R108 47K
C623
1/50
C621
1/50
C619
1/50
C617
1/50
C615
4.7/50
C613
1/50
C605
0.15
C607
0.1
C626
0.0056
R608
1.2K
R606
3.9K
C608
0.1
C606 0.15
CNP101
IC101
AN7345K
PLAYBACK AND RECORD/
PLAYBACK AMP.
IC601
LC75341
AUDIO PROCESSOR
– 25 –
CD-BA250H/CD-BA2600H
Figure 25 SCHEMATIC DIAGRAM (4/9)
7
8
9
10
11
12
0 V
0 V
0 V
0 V
11.6 V
11.6 V
0 V
0 V
0.7 V
0.7 V
0 V
2
1
3
CD SIGNAL
VIDEO SIGNAL
RECORD SIGNAL
PLAYBACK SIGNAL
FM SIGNAL
22
23
24
25
26
27
28
29
30
31
32
33
34
35
TO DISPLAY PWB
P29 12-C
CNS701
TO TUNER SECTION
P30 1-F
1
28
24
23
22
21
20
19
18
17
16
15
14
13
CLK
VDD
VREF
ROUT
RBASS
RTRE
RIN
RSEL0
R4
R3
R2
R1
+
+
–
17
16
15
14
13
12
11
10
9
8
Vcc
ALC
GND
ALC
RIPPLE
Nor/CrO2
+
+
–
–
Hich=CHROME
56K
56K
CHASSIS
R-CH
L-CH
RDS_READY
RDS_RDCL
RDS_RDDA
RDS_RST
TUN_SM
DO
CE
A+10 V
TUN_L
TUN_R
DI
CLK
(D_GND) GND
(A_GND)GND
SW_5 V
UN_SW_5 V
SP_DET
SP_RLY
VF1
–VP
P_IN
VF2
RDS-READY
RDS-RDCL
RDS-RDDA
RDS-RST
–20 dB
M_GND
A_GND
D_GND
–15 V
M_+12 V
SPA_SIG
SMUTE
REC/PLAY
T_T1/T2
T_BIAS
CLK
DI
TUN_SM
CE
DO
8
7
6
9
13
5
2
4
3
14
1
12
11
10
15
20
19
17
18
24
23
22
16
25
21
26
27
28
REC_R
+B
+B
+B
+B
+B
+B
+B
-B
: MUTING
BIAS
SWITCHING
CNP701
R622
220K
R623
220K
C133 22/50
C134 220/10
C625
0.0056
R609
1.2K
C603
22/50
C611
0.0027
R607
3.9K
R141 4.7K
Q110
KRC104 M
R136 220K
C135 0.022
C601 220/16
R603
1K
R690
6.8K
R693
33K
R691
6.8K
R692
33K
C693
0.001
D691
DS1SS133
C690
390P
D690
DS1SS133
C691
390P
R130
1
.5K
R158
220
R139
10K
Q107
KTC3199 GR
R138
10K
Q108
KTC3199 GR
C138
0.0082
(PP)
C137
0.047(ML)
R132
100
C127 0.022
C126
22/50
R140 47K
Q109
KTA1266 GR
C128 0.022
C130 0.0033
C140 47/25
Q111
KTC3203 Y
R142
82
C139
0.039(ML)
C131 47/25
C129 0.0033
R133 100
C125
22/50
R131
1
.5K
C132
47/25
R145
4.7
R137
220K
R143 47K
L103 330
µ
H
R134
10K
R144 22K
R135 10K
C623
1/50
C621
1/50
C619
1/50
C617
1/50
C615
4.7/50
C613
1/50
C605
0.15
C607
0.1
C609
1/50
R605
10K
FFC701
JK690
VIDEO/AUX
IN
ORD/
.
SSOR