Sharp CD-BA180 Service Manual - Page 14

Browse online or download pdf Service Manual for Stereo System Sharp CD-BA180. Sharp CD-BA180 44 pages. Mini component system

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CD-BA180
A
CNS402
R-CH
1
1
A_GND
2
2
P13 12 - D
L-CH
3
CNP11
3
CD_GND
TO CD SERVO
4
4
B
+5v
PWB
5
5
C
L
q
GND (A_GND)
t
TO
R
POWER
r
SECTION
+5V
P16 1 - F
j
GND (CD_GND)
s
D
CHASSIS
E
MECHANISM
CHASSIS
EARTH
R-CH
L-CH
TAPE 1
PLAYBACK HEAD
F
ERASE
HEAD
R-CH
L-CH
TAPE 2
RECORD/
G
PLAYBACK HEAD
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 28.
1
+B
R401
R409
330
10K
Q401
KTC3199 GR
R403
2.7K
R407
2.2K
C402
0.001
R404
2.7K
R408
2.2K
R402
330
R410
10K
+B
Q401,Q402 : SYSTEM MUTE
C403
22/25
FM SIGNAL
PLAYBACK SIGNAL
RECORD SIGNAL
CD SIGNAL
VIDEO SIGNAL
9.3V
9.3V
C102
0.001
1
T1_R
1
A_GND
2
2
3
T1_L
3
C103
0.001
0V
C104
180P
0V
1
1
M_GND
2
2
ERASE
3
3
0V
T2_R2
4
4
A_GND
2SC1845 F
T2_R1
5
5
6
6
T2_L1
2SC1845 F
7
7
T2_L2
0V
C105
0V
180P
0V
2SC1845 F
2
Figure 14 SCHEMATIC DIAGRAM (3/10)
+B
C405
0.022
C404
100/16
C409
R415
0.1(ML)
3.9K
R417
3.3K
R157
150
Q102
KRC104 M
R102
10K
3.4V
3
0V
2
R101
1
10K
R103
4.7K
1
8.6V
0V
3
2
Q101
Q103
KRC104 M
KTA1266 GR
R137
15K
R104
1K
R105
1K
Q104
2SC1845 F
C106
R110
0.7V
0.001
47K
R106
0V
2.2K
0V
0.7V
0V
R108
3.3K
Q106
Q107
0.7V
0V
R109
C107
0V
3.3K
0.001
0V
0.7V
R107
2.2K
Q105
3
4
– 14 –
DI
1
CE
2
C407
10/50
CCB
3
VSS
+
-
INTERFACE
LOUT
4
C411
0.1(ML)
LBASS
5
C413
0.0027
LTRE
6
C417
1/50
LIN
7
C419
4.7/50
LSEL0
8
C421
1/50
L4
9
AUX
C423
1/50
L3
DECK
10
C425
1/50
L2
TUN
11
C427
1/50
L1
12
CD
IC401
LC75341
AUDIO PROCESSOR
+B
R116
C144
56
0.0022
R124
33K
C120
C116
560P
100/10
C118
R122
0.033
5.6K
C114
R114
330P
1K
C112
330P
24
23
22
21
22
-
112K
R
+
Hich=T1
+
L
-
112K
1
2
3
4
5
C113
330P
R115
C115
1K
330P
C137
0.022
C123
R123
47/25
5.6K
C117
100/10
R125
R117
33K
56
R138
15K
5
+B
CLK
24
+B
23
VDD
C406
22/50
VREF
22
C408
10/50
R
ROUT
C410
21
0.1(ML)
C412
0.1(ML)
RBASS
20
C414
0.0027
RTRE
19
C418
1/50
RIN
18
C420
4.7/50
RSEL0
17
C422
1/50
R4
16
C424
1/50
R3
15
C426
1/50
R418
R2
14
3.3K
C428
1/50
R1
13
C150
22/25
R142
220K
MUTING
Q110
KTC3199 GR
R141
0V
10K
0.7V
R140
Q11
0V
10K
KTC319
C128
22/25
19
18
17
16
15
1
56K
-
+
IC101
Hich=CHROME
AN7345K
+
-
56K
7
8
9
6
10
1
C129
C139
22/25
3.3/50
C135
47/25
R135
10K
6