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

– 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
CD-BA250H/CD-BA2600H
– 26 –
Figure 26 SCHEMATIC DIAGRAM (5/9)
A
B
C
D
E
F
G
H
1
2
3
4
5
6
• NOTES ON SCHEMATIC DIAGRAM can be found on page 39.
+B2 
D917
DS1N404S
Ch1 
L-CH
–
+
Ch1 
Out 
Out 
Ch2 
+Vcc
–Vcc
Ch2
–
+
R-CH
1
2
3
CD_+B 
A_+B
3
2
1
7
4
5
6
9
8
10
3
1
2
P_IN
GND (CD_GND)
R-CH
GND (A_GND) 
L-CH
A+10 V 
VF1 
VF2 
–VP 
SP_RLY
–15 V
M_+12 V
GND (D_GND) 
GND (A_GND) 
GND (M_GND) 
SP_DET
SW_5 V 
TO  MAIN  SECTION
P24  2-C 
FROM
DISPLAY PWB
P29  12-E
S
S
6
2
1
3
4
5
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
2
3
1
2
3
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
-B
-B
-B
IC904
IC903
1
2
4
3
6
20
7
9
17
18
19
13
8
21
10
14
5
12
11
CNS803
R952
1K
C948
0.022
C918
0.1(ML)
D912
DS1SS133
R930
100K
C932
0.001
R932
56K
C945
10/50
C946
10/50
R949
0.1
(1W)
C947
0.022
BI902
C915 0.022
C916      22/50
R909
22K
C904
2200/63 
C903
2200/63
R902
22K
R901
22K
R903
3.3K
R957 56K
ZD904
DZ130BSB
C970
6800/16
Q908
KRA107 M 
C931
0.22/50
C930
0.22/50
C969
3.3/50
Q907
KRC107 M
R933
56K
R931 100K
ZD905
DZ2.4BSB
R908
560
C907
2200/35
R943 100
C941
100/50
R945
0.22
(2W)
R947
0.22
(2W)
R948
0.22
(2W)
R946
0.22
(2W)
C950
0.1
(ML)
C952
0.1
(ML)
R958
4.7
C951
0.1
(ML)
C953
0.1
(ML)
R959
4.7
C933 0.001
R954
1.5K
Q903
KTC3199 GR 
R950
0.1
(1W)
R951
1K
R942
22K
C939
150P
R955
56K
C937
15P
C938
150P
R938
56K
R941
1K
R956
56K
R953
1.5K
Q905
KTC3199 GR
IC901
STK4029S
POWER AMP.
R934
1K
Q904
KTC3199 GR
D911
DS1SS133
C949 47/50
C942
0.22
C936
15P
R936
820
R944 100 
C940
100/50
R937 820
R939
56K
R935
1K
Q902
KTC3199 GR
D913
1SS133
C935
4.7/50
C934
4.7/50
R940
1K
IC902
KTC2026
IC904
KIA7805AP
CONSTANT
VOLTAGE
REGULATOR
C921
0.1(ML)
C923
47/25
C920
47/25
IC903
KIA7810AP
VOLTAGE
REGULATOR
D916
DS1SS133
– 27 –
CD-BA250H/CD-BA2600H
Figure 27 SCHEMATIC DIAGRAM (6/9)
7
8
9
10
11
12
4.4V 
0.2V 
–28V
–28V
–33V
+ 
M
2
1 
6  OHMS  MIN
SP_RCH_GND
SP_LCH_GND
SP_RCH
SP_LCH
MAIN PWB-A1 (2/3)
FM  SIGNAL
AC POWER
SUPPLY CORD
 AC 230 V, 50 Hz
TRANSFORMER
PWB-A3
POWER PWB-A2
2
1
R1_OUT
L1_OUT
1
2
3
1
2
3
7
4
5
6
9
8
10
7
4
5
6
9
8
10
1
2
3
7
4
5
6
9
8
10
OM
Y PWB
12-E
P_IN
AC_RLAY
GND
UM_SW_5 V
SUB_+B
SW_5 V
6
2
1
3
4
5
T.F.
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
HEADPHONES
PWB-B2
1
1
5
2
3
4
5
When Servicing, pay attention as the
area enclosed by this line (             ) is
directly connected with AC main voltage.
S803
+
+
–
–
C802
 0.047(ML)
R981       680
R988       680
R986       680
R982       680
R977
47
R978
47
R984
47K
C963
0.001
C962
0.001
R804
220K
R802
47K
R803
1K
Q801 KTC3199 GR
R801
220
C805
1000/35
BI902
CNS902
R983
220K
ZD902
DZ110BSB
C909 100/50
D907
DS1N404S
ZD901
DZ330BSB
C911
47/50
C912 47/50
ZD903
DZ6.2BSA
R905 47K
C913 100/35
R907 12K
R968
4.7K
C967
47/50
R969
4.7
CNP971
R963
6.8
R961
6.8
R962
6.8
R960
6.8
C961
0.022
C959
0.022
C957
0.022
C955
0.022
C960
0.022
C958
0.022
C956
0.022
C954
0.022
L920
L921
D806
DS1SS133
C906
0.1(ML)
C905
0.1(ML)
R906
10
Q901
KTA1274 Y
R904 2.2K
C910
220/50
D904
DS1N404S
D902
DS1N404S
D903
DS1N404S
D905
DS1N404S
C908
100/50
D906
DS1N404S
D908
DS1N404S
C902
0.1(ML)
C901
0.1(ML)
PT801
MAIN POWER 
TRANSFORMER
LUG2
LUG1
RL801
C801
0.047/250
D801
DS1SS133
L801
LINE FILTER
R973
47K
Q914
KTC3199GR
CNP803
C950
0.1
(ML)
C952
0.1
(ML)
R958
4.7
C803
470/35
R967
4.7K
D915
DS1SS133
R972
15K
C964
0.001
C965
0.001
PT802
SUB POWER 
TRANSFORMER
D804
DS1N404S
D803
DS1N404S
D802
DS1N404S
D805
DS1N404S
Q906 KTC3203 Y
D914
DS1SS133
RL914
R970
1K
R971
68K
C968
10/50
F904
T2A  L 250V
F902
T4A  L 250V
F903
T2A  L 250V
F901
T4A  L 250V
CNP902
D901
TS6B04GM
FW981
CNP981
JK701
HEADPHONES
C734
220P
C735
220P
CNS971
M901
FAN MOTOR
SO901
SPEAKER
TERMINAL
CD-BA250H/CD-BA2600H
– 28 –
Figure 28 SCHEMATIC DIAGRAM (7/9)
A
B
C
D
E
F
G
H
1
2
3
4
5
6
1
8
7
6
5
4
8
2
1
3
+
-
TAPE
MOTOR
M
PLAY
CASSETTE
SOLENOID
SOLENOID
PH
TAPE MECHANISM
PWB-D
T 2  PLAY
T 2  RUN
+MTR
SOL 2
SOL 1
T 1  RUN
GND 
F_REC 
4 
5 
1 
6 
3 
2 
7 
8 
P22 
P21 
P20 
P19 
P18 
P17 
P16 
P15 
P14 
P13 
P12 
P11 
P10 
P09 
P08 
P07 
P06 
P05 
P04 
P03 
P02 
P01 
G01 
G02 
G03 
G04 
G05 
G06 
G07 
G08 
G09 
G10 
G11 
F
F
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
1
P1
P2
P3
P4
P5
G11
G10
G9
G8
G7
G6
G5
G4
G3
G2
G1
VDD
P6
P7
P8
P9
P10 
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
P11
P12
P13
P14
LCK  0
KARAOKE  LATCH
FPA
T1
FPB
MIC  SW
NO  USE  /  MPEG_POW
DISTOUT/SW  OUT
SPK_DET
VLOAD
RDS-READY/ESS_DO
RDS-RDCL/ESS_DI
RDS-RDDA/ESS_STB
RDS-RST/ESS_ACK
P22/DIST3
P21/DIST2
P20/DIST1
P15
P16
P17
P18
P19/DIST0
NO  USE
O/C  SW/
DSA  DATA
TIMER  LED
T2  RUN
30
29
28
SPEANA2
SPEANA0
SPEANA1
54
53
52
51
PLAY  SW_B
SW
CD  CLAMP
NO  USE
50 49 48 47 46 45 44 43 42 41 40
 
39 38 37 36 35 34 33 32 31
30
29
AVDD
KEY  2
KEY  1
KEY  0
P_IN
REMOCON
VSS
SMUTE
T_SOL_A
T_MOTOR
VDD
AC  RLY_CONT
T_SOL_B
AVref
RUN 
SP_ RLY 
JOG  0
JOG  1
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
T-BIAS
T_T1/T2
VDD
X1
X2
RESET
CD  CE
CD  DI
WRQ
SPAN
CE
DSA_STB
REC/PLAY
RES  OUT
Vpp/IC
CD  CLK
CD  DO
CLK
DI
DO
AVSS
TUN  SM
DSA_ACK
–20 dB
DRF
XT2
2
3
6
7
8
9
10
11
12
13
14
15
16
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
47
48
49
M12 V
-B
+B
+B
2
4
1
8
7
3
5
6
2
4
1
8
7
3
5
6
DISPLAY PWB-B1
R786 10K
R788 6.8K
CNS702
R770 10K
R772 10K
C7
1/5
C706
47/50 
R718 1K
R719 1K
R720 1K
R721
1K
R724  1K
R726    2.2K
R727    2.2K
R728    2.2K
R729    1K
R730   1K
R732   1K
R733   1K
R734   1K
R762
10K
LED701
SLR342VCJ 
R761
1K
R572 100K
C572 0.022
ZD561
DZ6.2BSB
C573    0.022 
C569    2.2/50
R578     100K
R766
10K 
R768
10K
R767
10K
R731   10K
R778
10K
R779
10K
R777
10K
Q708
KTA1271 Y
Q707
KTA1271 Y
Q706
KTA1273 Y
C712
47/50
D709
DS1SS133
D710
DS1SS133
R756     10K
R758     10K
R759     10K
R760     10K
R752
33
D703
DS1SS133
R579
15K
C571
0.022
R73
C566 2.2/50
R747
1K
R746
1K
R748
1K
R749 100K
R750 100K
R751 100K
R571 390K
D563
DS1SS133
D562
DS1SS133
R580
180K
C567
0.0068
D561
DS1SS133
R573
56K
R568
220K
R566
220K
R565
33K
R567
68K
R563
270
R562
820K
R574
1M
R576
2.2M
R561
10K
C568
0.0068
C561
270P
R570
12K
C565
0.0027
R738    22K 
R739    1K
R740    1K
R569 100K
C570
0.022
R575
470K
C707
1/50
R742     1K
D716
DS1SS133
FL701
FL DISPLAY
R743      1K
R744     1K
R745     1K
R710
R711
R712
R713
R714
R715
R716
R70
R70
R70
R717
R70
R735    1K
R736    1K
C564
0.0027
C562
270P
Q701
KTC3199 GR 
Q702
KTC3199 GR 
Q703
KTC3199 GR 
C563
2.2/50
R577   150K
R70
R70
R70
R709
XL
4.1943
+B
FFC702
IC561
KIA4558P
OPE AMP.
IC561
KIA4558P
OPE AMP.
IC701
IX0401AW
SYSTEM
MICROCOMPUTER
• NOTES ON SCHEMATIC DIAGRAM can be found on page 39.
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