Read Sharp CD-BA1200 (serv.man8) Service Manual online
CD-BA1200H
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A
B
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D
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• NOTES ON SCHEMATIC DIAGRAM can be found on page 15.
Figure 22 SCHEMATIC DIAGRAM (3/10)
24
23
22
21
20
19
18
17
16
15
14
11
10
9
8
7
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
+5V
GND
L
GND
R
M_GND
+B
+B
P26 1 - G
TO POWER PWB
(CD_GND)
(A_GND)
+5v +B
+B
+B
CD_GND
REC_R
L-CH
A_GND
R-CH
TAPE1_R
TAPE1_L
A_GND
A_GND
ERASE
TAPE2_R2
TAPE2_R1
TAPE2_L1
0V
0V
0.7V
0.7V
3
1
7
6
5
4
3
2
1
2
3
1
2
L
R
ALC
ALC
RIPPLE
Nor/CrO2
-
+
-
+
Hich=T1
+ +
-
-
Hich=CHROME
56K
112K
56K
112K
CD
TUN
DECK
AUX
LSEL0
- +
- +
- +
-
+
-
+
-
+
-
+
-
+
CCB
INTERFACE
R1
R2
R3
R4
RSEL0
RIN
RTRE
RBASS
ROUT
VREF
VDD
CLK
L1
L2
L3
L4
LIN
LTRE
LBASS
LOUT
VSS
CE
DI
TAPE2_L2
3
1
2
5
4
3
1
2
5
4
17
4
18
12
19
2
3
1
1
3
2
CNP11
TO CD SERVO
PWB
P21 12 - D
CNS102B
CNS102A
CNS101B
CNS101A
R-CH
L-CH
PLAYBACK
HEAD
TAPE1
RECORD/
PLAYBACK HEAD
TAPE2
R-CH
L-CH
ERASE
HEAD
HEAD
3
1
2
3
1
2
7
6
5
4
3
2
1
7
6
5
4
3
2
1
7
6
5
4
3
2
1
FM SIGNAL
PLAYBACK SIGNAL
RECORD SIGNAL
RECORD SIGNAL
CD SIGNAL
SWITCHING
SWITCHING
SWITCHING
SWITCHING
SWITCHING
SWITCHING
SWITCHING
SWITCHING
SWITCHING
MUTING
M
SYSTEM MUTE
SYSTEM MUTE
BI601
CNS601
Q602
2SC3331
2SC3331
C602
0.001
0.001
C601
0.001
0.001
Q601
2SC3331
2SC3331
R603
1.8K
1.8K
R604
1.8K
1.8K
R607
2.2K
2.2K
R608
2.2K
2.2K
R609
10K
10K
R610
10K
10K
R602
330
330
R601
330
D902
1SS133
C603
22/25
22/25
R625
22K
22K
R615
3.9K
3.9K
C607 10/50
C609
0.1(ML)
0.1(ML)
C611
0.1(ML)
0.1(ML)
C623
1/50
1/50
C629 1/50
C617 1/50
C613 0.0027
C625
1/50
1/50
C627
1/50
1/50
R617
3.3K
3.3K
C633
0.001
0.001
IC601
LC75341
AUDIO PROCESSOR
C630
1/50
1/50
C605
0.022
0.022
C604
100/25
100/25
C610
0.1(ML)
0.1(ML)
C612
0.1(ML)
0.1(ML)
C618
1/50
1/50
R616
3.9K
3.9K
C614
0.0027
0.0027
C608
10/50
10/50
C606
22/50
22/50
C628
1/50
1/50
C626
1/50
1/50
C624
1/50
1/50
R618
3.3K
LUG1
MECHA BASE GND
MECHA BASE GND
R102
10K
10K
R101
10K
10K
R103
4.7K
4.7K
Q101
KTA1266 GR
KTA1266 GR
C101
0.047
0.047
R157
100
100
Q102
KRC104 M
KRC104 M
C108
100/16
100/16
R104
1K
1K
R137
15K
15K
Q103
KRC104 M
KRC104 M
C103
560P
560P
C102
560P
560P
CNP101
Q104
2SC1845F
2SC1845F
C104
180P
180P
R105
1K
1K
R106
2.2K
2.2K
R110 47K
R108
3.3K
3.3K
Q106
2SC1845F
2SC1845F
CNP102
Q105
2SC1845F
2SC1845F
C105
180P
180P
R107
2.2K
2.2K
R109
3.3K
3.3K
Q107
2SC1845F
2SC1845F
R113
47K
Q109
2SC3331
C107
560P
560P
R111
4.7K
R112 4.7K
C106
560P
Q108
2SC3331
C123
1/50
1/50
R123
5.6K
5.6K
C121
560P
560P
R119
100K
100K
R121
3.9K
3.9K
C119
0.033
0.033
C117
100/25
100/25
C115
330P
330P
C137
0.022
0.022
R125
33K
R138
15K
15K
R117
56
56
R115
1K
1K
C113
330P
330P
R131 1.5K
C131
0.022
R127
6.8K
R135
10K
10K
C133 0.0033
R129 3.9K
C135
47/25
47/25
C129
22/25
22/25
C127 270P
R133
100
C139
3.3/50
3.3/50
C138
220/10
C136 22/25
C146
0.001
C122
1/50
1/50
C116
100/25
100/25
C120
560P
560P
R120
3.9K
3.9K
C118
0.033
0.033
R118
100K
100K
R124
33K
33K
C128
22/25
22/25
R128
6.8K
C126
270P
R132
1.5K
R126 68K
C134
47/25
R134
100
R136
10K
C112
330P
330P
C130
0.022
R130
3.9K
R116
56
56
C114
330P
330P
C132
0.0033
R114
1K
1K
R122
5.6K
5.6K
R140
10K
10K
Q110
2SC3331
2SC3331
R142
220K
220K
R141
10K
10K
Q
2S
2S
IC101
AN7345K
IC101:PLAYBACK AND RECORD/
PLAYBACK AMP.
L101
2.2mH
2.2mH
L102
2.2mH
2.2mH
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