Sharp CD-BA160H Service Manual page 22

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CD-BA160H/1700H
SO301A
FM ANTENNA
TERMINAL
FE301
8
FM FRONT END
2
6
7
3
4
AM LOOP
ANTENNA
CNP302
1
1
2
2
L341
BALUN
T303
AM
ANTENNA
23
22
21
20
15
14
ICT21
LC72722
RDS CIRCUIT
4
2
3
CNS402
1
FROM CD
2
SECTION
3
CNP11
4
5
TAPE 1
PLAYBACK
HEAD
L(T1)
L-CH
R-CH
R(T1)
L(T2)
R(T2)
TAPE 2
Q104-
L NF
L-CH
Q107
R-CH
R NF
RECORD/
PLAYBACK
POP REDUCE
HEAD
AC BIAS
RECORD
L REC
PLAYBACK
R REC
Q108
Q109
SWITCHING
ERASE
HEAD
Q114
L104
BIAS OSC
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2
1
1
1
3
CF301
Q301
FM IF
5
VCC
T306
AM OSC
13
SWITCHING
FM +B
XT21
Q360
4.332MHz
12
+B1
IC101
AN7345K
PLAYBACK AND RECORD/
PLAYBACK AMP.
1
13
+B1
24
P.B
L
PB
4
2
21
R
23
3
5
NC
22
20
NC
H/N
6
7
T1/T2
REC L
18
9
REC R
REC
16
8
L NF
17
R NF
14
REF
10
12
ALC
NOR/
NC
HIGH
T1/T2
15
19
Q103
SWITCHING
Q101
Q102
BIAS
SWITCHING
Q113
Q112
SWITCHING
Figure 22 BLOCK DIAGRAM (2/3)
FM IF
3
CF302
2
2
T351
1
CF352
3
2
1
4
5
AM MIX
AM IF
GND
IC303
FM IF DET/FM MPX./AM IF
LA1832S
FM/AM
OUT
23
22
21
24
7
18
QT21
VT
X352
4.5MHZ
20
1
22 15
16
11
6 5 4 3
AOUT
XIN
XOUT
IC302
LC72131
PLL(TUNER)
FM/AM
MO/ST
7
9
10
FM
SO401
VIDEO/AUX
AUX L
L-CH
9
16
AUX R
R-CH
TAPE L
10
15
TAPE R
TUNER L
11
AUDIO PROCESSOR
14
TUNER R
CD L
12
13
CD R
7
8
– 22 –
+5.1V
CF351
FM IF
9
8
13
VCC
FM
MO/ST
DET
14
L
R
15
MPXIN
FM/AM
16
12
L354
LOW PASS
FILTER
17
VDD
21
+B1
23
1
DI
2
CE
CL
24
IC401
21
R-CH
LC75341
4
L-CH
SYSTEM
L-IN
7
MUTE
1
18
17
3
6
IC702
7
IC702:IC703
6
IC703
KIA4558P
OPE AMP.
Q110
Q111
MUTING
+B
Q401
Q402
SPEANA
7
SPEAN
1
SPEAN
REC/PLA
T1/T2
BAIS

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