Read Sharp CD-BA1200 (serv.man7) Service Manual online
CD-BA1200H
– 18 –
Figure 18 BLOCK DIAGRAM (2/3)
FMAFC
BALUN
L341
REC/PLAY
CL
CE
DI
SYSTEM
MUTE
DO
CL
DI
CE
MO/ST
+B3
SWITCHING
+B3
FM/AM
PLL(TUNER)
LC72131
IC302
OUT
FM/AM
+B3
L
R
BAIS
T1/T2
MUTING
Q110
Q111
P.B.
REC
ACBIAS
L
L
R
R
R
L
TAPE
TUNER
CD
PB
CNS601
CNP11
FROMCDSECTION
HEAD
ERASE
SWITCHING
SWITCHING
SWITCHING
BIAS
Q102
Q103
Q101
Q113
SWITCHING
Q112
L103
BIAS
OSC
OSC
L104
Q114
Q109
Q108
Q
RECPBHEAD
TAPE2
PBHEAD
TAPE1
R-CH
L-CH
R-CH
L-CH
IC601
LC75341
AUDIOPROCESSOR
+B3
R
L
REC
R
L
LNF
RNF
ALC
REF
RREC
LREC
POP
REDUCE
REDUCE
RNF
LNF
SWITCHING
Q107
Q104~
L(T2)
R(T2)
R(T1)
L(T1)
/PLAYBACKAMP.
PLAYBACKANDRECORD
IC101
AN7345K
R
L
FM/AM
MPXIN
STEREO
AMRFIN
AMOSCIN
FM +B
Q360
VT
FMOSC
OSC
4.5MHZ
X352
COVERAGE
AM BAND
AM TRACKING
T303
Q301
X351
456kHz
456kHz
MO/ST
VCO
DET
FM
FM+B
GND
AM IF
CF351
FM IF DET./FM MPX./AM IF
LA1832S
IC303
MIX
CF352
T351
CF302
CF301
FM FRONT END
TA7358AP
FE301
AM LOOP
ANTANNA
FM
ANTENNA
11
7
7
5
6
1
2
3
4
8
22
3
21
4
24
2
1
8
18
17
5
4
3
9
10
18
1
16
3
15
10
9
7
23
14
12
13
1
2
20
19
7
18
10
8
17
13
21
4
5
2
24
23
6
9
16
12
15
1
5
1
3
1
2
7
9
8
17
6
2
1
20
22
17
16
15
13
14
12
15
16
23
4
H/N
P.B
REC
T1/T2
T1/T2
HIGH
NOR/
Q602
Q601
5
24
21
22
AM
T306
FM
4
TAPE
MOTOR
MOTOR
SOLENOID
T2 PLAY
T1 PLAY
R.PLAY
F.PLAY
Q706
Q704
Q705
IC701
54PIN
IC701
53PIN
IC701
56PIN
IC701
55PIN
M
MOTOR
DRIVER
DRIVER
+2B
+2B
AM IF
12
14
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