Sharp CD-BA1200H Service Manual page 18

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