DOWNLOAD Sharp CD-BA250 (serv.man10) Service Manual ↓ Size: 3.93 MB | Pages: 64 in PDF or view online for FREE

Model
CD-BA250 (serv.man10)
Pages
64
Size
3.93 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System
File
cd-ba250-sm10.pdf
Date
PREV: Sharp CD-BA250 (serv.man9) Service Manual

Sharp CD-BA250 (serv.man10) Service Manual ▷ View online

– 21 –
CD-BA250H/CD-BA2600H
 Figure 21 BLOCK DIAGRAM (3/3)
+B7
UNSW  5 V
SW  +5 V
+B5 
D806
Q801
IC905
AN78L05
VOLTAGE  REGULATOR
D802-805
PT802
SUB  POWER
TRANSFORMER
PT801
MAIN  POWER
TRANSFORMER  
RL801
L801
LINE
FILTER
Q914
Q907
Q908
AC 230 V, 50 Hz
–VP
VF2
VF4 
Q901
+B6
SW  5 V
IC904 
KIA7805AP
CONSTANT VOLTAGE REGULATOR
+B4
+B3
+B1
–B1
-B2
+B6 
+B3
+B7
- 
- 
+B4
- 
- 
Q701-Q703
R
L
+B5
RX701 
REMOTE
SENSOR   
4
IC701
IX0401AW
(2/2)
1
2
8P
MP.
D902~D905 
D901
RY914
JK701
HEADPHONES
M901
FAN  MOTOR
M
Q906
Q709
Q902
Q903
Q905
Q904
Q603
Q604
Q612
Q613
IC903
KIA7810AP
VOLTAGE REGULATOR
IC902
KTC2026
IC901
STK4029S
POWER AMP.
F903
T2A  L 250V
F904
T2A  L 250V
F902
T4A  L 250V
F901
T4A  L 250V
+Vcc
–Vcc
L-OUT
R-OUT
CLK
MAIN
AC  POWER
SUPPLY  CORD
REC/PLAY
VLOAD
RESET
GROUND
+B7
+B7
+B7
+B7
+B5
VDD
VDD
VDD
SP.  DET.
- 
CE
DI
DO
XL700
4.194304 MHz
-
BIAS
T1/T2
AVDD
KEY
SW701-SW707
SW712-SW718
SW720-SW727
SW729-SW732
TO  CD
SECTION
IC701
IX0401AW
SYSTEM
MICROCOMPUTER(1/2)
FL701
FL DISPLAY
42
43
44
46 45
47
31
23
89
80
44
33
78
49
48
47
13
93
16
14
92
90
1
2 4
5 6
7
15
1
29
28
9
67
6
1
3
2
3
2
1
7
1
13
7 
8
10
100
33
31
11 12 13
9 10
15 16 17
20 21
23
22
24
79
64
54
52
53
51
48
49
40
39
36
35
34
T.F.
63
66 65
55
50
A+10 V
M+12 V
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
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–
SP–
SP+
VREF
VCC
PICKUP UNIT
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
1
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
2
4
1
3
6
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
(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
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
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
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 
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
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
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
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
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
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