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CD-BK250W
Sharp CD-BK250W Service Manual
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– 33 –
CD-BK250W/CD-BK2600W/CD-BK270W
Figure 33
WIRING SIDE OF P.W.BOARD (4/8)
7
8
9
10
11
12
WH
WH
BK
PK
WH
GR
BL
BK
PK
BK
WH
YL
BL
BI102
7
1
2
3
4
5
6
1
CNS102
TO TAPE 2 RECORD/
PLAYBACK HEAD
P37 12 - E
R137
Q107
C134
C131
C119
C133
C127
C150
C125
IC101
C122
R115
R114
Q104
R113
Q102
CNP101
Q105
Q106
Q101
BI102
R112
Q103
C137
R145
C138
Q114
Q111
L103
C141
Q113
C140
C139
Q112
C136
R142
R141
R149
Q109
Q110
C970
BI902
1
10
R988
R981
R986
R982
C904
C921
ZD905
C907
C923
D916
D917
C920
C918
CNP701
BIK1
FFC701
CNS701
P35 12 - A
TO DISPLAY PWB
C114
BI601
CNS601
CNSK1
CNP7
1
6
C112
C615
C118
C613
C619
C617
C621
R136
C605
C607
C623
IC601
C624
C614
C622
C606
C618
C616
C620
C608
C610
C601
C603
R602
C609
R603
2468
10
12
14
16
18
20
22
24
32
1
1
10
1
3579
11
13
15
17
19
21
23
25
27
29
31
26
28
30
32
R601
D912
Q902
ZD904
C915
R903
R909
C916
R908
9
02
C903
FW981
1
5
IC904
IC903
IC902
123456789
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
321
7
1
GY
WH
GY
WH
GY
WH
GY
WH
GY
RD
10
9
8
7
6
5
4
3
2
1
CNP902
TO POWER PWB
GY
WH
GY
WH
GY
RD
12
3
45
6
GY
WH
GY
WH
GY
RD
P36 5 - A
TO CD SERVO PWB
CNPK1
P30 5 - G
TO MIC PWB
FROM
TAPE 1
PLAYBACK HEAD
P37 10 - E
RD
GY
WH
GY
WH
GY
WH
GY
GY
WH
1
2
3
4
5
6
7
8
9
10
P31 9 - H
BR
COLOR TABLE
RD(R)
OR
YL
GR
BL
VL
GY
WH(W)
BK
PK
BROWN
RED
ORANGE
YELLOW
GREEN
BLUE
VIOLET
GRAY
WHITE
BLACK
PINK
BC
E
BC
E
EC
B
EC
B
EC
B
EC
B
EC
B
E
E
C
B
B
C
E
E
C
B
E
C
B
1
1
12
3
12
3
BC
E
2
3
1
2
3
2
3
CB
R131
R135
R121
C129
R133
R134
C135
C130
R132
R123
R127
R129
R130
C123
R128
R125
C124
C121
R117
C115
R119
C108
C109
C110
C107
R102
R101
R106
C104
C106
R104
R103
C101
C105
R111
R105
C103
R107
R108
R109
R110
C102
R144
R143
R148
R147
R146
R140
R118
C116
R120
R124
R607
R122
R623
C120
R622
R126
C611
C625
R609
R138
C626
R608
C612
R606
C735
C734
JK701
HEADPHONES
CNP981
CNS902
1
2
3
4
5
HEADPHONES PWB-B2
MAIN PWB-A1
C113
C117
C111
R116
Q108
C132
C126
R158
R139
C128
32
34
Table of Contents
Table of Contents
1
Sharp Corporation
1
Safety Precaution for Service Manual
2
Voltage Selection
2
Ac Power Supply Cord and Ac Plug Adaptor
2
Specifications
3
Names of Parts
4
Rear Panel
5
Speaker System
5
Remote Control 1
6
Operation Manual
7
Troubleshooting Chart
8
Remote Control
8
Disassembly
9
Removing and Reinstalling the Main Parts
12
Adjustment
13
Tuner Section
14
Test Mode
15
Block Diagram
17
Schematic Diagram / Wiring Side of P.w.board
20
Voltage
38
Notes on Schematic Diagram
39
Types of Transistor and Led
39
Waveforms of CD Circuit
40
Troubleshooting
41
Function Table of IC
45
Fl Display
53
Parts Guide
55
Remote Control
61
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Sharp CD-BK250W Specifications
General
Brand
Sharp
Model
CD-BK250W
Category
Stereo System
Language
English
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