Read Sharp CD-BA1700 (serv.man7) Service Manual online
CD-BA160H/1700H
– 22 –
Figure 22 BLOCK DIAGRAM (2/3)
AM LOOP
ANTENNA
ANTENNA
XIN
VDDD
VSSD
DO
CL
DI
CE
XOUT
VDDA
VSSA
IN
MPX
FM AFC
BALUN
REC/PLA
CL
CE
DI
SYSTEM
MUTE
MUTE
DO
CL
DI
CE
MO/ST
+B1
SWITCHING
+B1
FM/AM
OUT
FM/AM
+B
L-CH
R-CH
BAIS
T1/T2
MUTING
PLAYBACK
RECORD
AC BIAS
R-CH
L-CH
CD R
TAPE R
AUX L
TAPE L
TUNER L
CD L
PB
FROM CD
SECTION
SECTION
ERASE
HEAD
HEAD
SWITCHING
SWITCHING
SWITCHING
BIAS
SWITCHING
BIAS OSC
RECORD/
PLAYBACK
HEAD
PLAYBACK
HEAD
TAPE 2
PLAYBACK
HEAD
HEAD
TAPE 1
R-CH
L-CH
R-CH
L-CH
H/N
P.B
+B1
R
L
REC L
REC R
L NF
R NF
ALC
REC
T1/T2
T1/T2
HIGH
NOR/
REF
R REC
L REC
POP REDUCE
R NF
L NF
SWITCHING
L(T2)
R(T2)
R(T1)
L(T1)
R
L
FM/AM
MPXIN
STEREO
AM RF IN
AM OSC IN
FM +B
FM
VT
AOUT
AM OSC
AM
ANTENNA
ANTENNA
MO/ST
DET
FM
VCC
GND
AM IF
FM IF DET/FM MPX./AM IF
AM MIX
F OUT
FM FRONT END
1
1
9
7
2
4
5
9
8
13
14
15
12
16
20
12
13
20
21
22
23
14
15
3
4
2
22 15
6
5 4 3
16
11
17
21
23
1
2
2
4
3
8
7
1
2
3
4
5
4
1
2
3
6
9
5
7
8
13
21
24
23
22
16
14
12
20
18
17
10
19
15
9
24
21
13
12
14
11
15
10
16
17
18
10
18
24
21
22
23
7
1
8
5
4
3
7
6
2
1
3
1
3
2
2
3
1
2
TUNER R
AUX R
Q112
XIN
XOUT
NC
NC
NC
VDD
+5.1V
VCC
1
6
7
IC702
7
6
1
IC703
SPEANA
SPEAN
SPEAN
7
L-IN
QT21
L354
IC303
LA1832S
LA1832S
X352
4.5MHZ
4.5MHZ
IC302
LC72131
PLL(TUNER)
LC72131
PLL(TUNER)
Q360
SO401
VIDEO/AUX
VIDEO/AUX
Q401
Q402
Q402
Q110
Q111
Q111
IC401
LC75341
AUDIO PROCESSOR
CNP11
IC101
AN7345K
PLAYBACK AND RECORD/
PLAYBACK AMP.
CNS402
ICT21
LC72722
RDS CIRCUIT
LC72722
RDS CIRCUIT
XT21
4.332MHz
4.332MHz
T306
T303
L341
SO301A
FM ANTENNA
TERMINAL
FM ANTENNA
TERMINAL
FE301
CF301 Q301
CF302
CF351
FM IF
FM IF
CF352
T351
Q103
Q108
Q109
Q109
Q104-
Q107
Q101
Q102
Q114
L104
L104
Q113
1
2
2
CNP302
1
2
2
FM IF
FM IF
LOW PASS
FILTER
FILTER
IC702:IC703
KIA4558P
OPE AMP.
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