Sharp CD-BA300

CD-BA300
– 18 –
Figure 18 BLOCK DIAGRAM (2/3)
VIDEO IN
AUX
R
L
R
L
R
L
R
L
R
L
JK601
FM
+B
+B4
CLK
+B4
AM IF
OSC BUFF
AM
FM IF
FM
OSC
B.P.F
CNP301
CNS11
–20dB
ATT
Q103-
Q106
–B2
+B4
KIA4558P
OPE AMP.
IC70
IX03
9
IC704
IC703
IC702
Q121
Q122
Q603
Q604
Q605
Q606
10.7MHz
450kHz
FM
REC/PLAY
CLK
CE
DI
SYSTE
M
MUTE
DO DI CE
MO/ST
SWITCHING
+B4
FM/AM
IC302
LC72131
PLL(TUNER)
FM/AM
OUT
L
R
BIAS
T1/T2
MUTING
P.B.
REC
AC BIAS
TAPE
TUNER
CD
PB
FROM CD SECTION
CNP7
ERASE
HEAD
SWITCHING
SWITCHING
SWITCHING
BIAS
Q110
Q111
Q109
Q126
SWITCHING
Q124
L103
OSC
BIAS
Q128
L104
Q107
Q108
REC PB HEAD
TAPE 2
PB HEAD
TAPE 1
L-CH
R-CH
L-CH
R-CH
IC601
LC75341
AUDIO PROCESSOR
H/N
P.B
+B4
R
L
REC
R
L
L NF
R NF
ALC
REC
T1/T2
T1/T2
NOR/
HIGH
REF
R REC
L REC
POP REDUCE
R NF
L NF
SWITCHING
L(T2)
R(T2)
R(T1)
L(T1)
IC101
PLAYBACK AND RECORD
/PLAYBACK AMP.
R
L
FM/AMMPXIN
STEREO
AM RF IN
AM OSC IN
FM
Q360
VT
OSC
X352
4.5MHZ
AM BAND
COVERAGE
AM TRACKING
T303
T306
Q302
X351
456kHz
MO/ST VCOFM
DET
FM+BGNDAM IF
CF351
IC303
LA1832S
FM/AM IF MPX.
AM MIX
CF352
T351
FM
RF
OSC
FM
L312 T301
CF303
T302
IC301
TA7358AP
FM FRONT END
BF301
7
8
4
1
3
1
2
1
24
2
23
3
22
6
9
16
14
12
15 19
10
17
18
8
7
20
5
21
13
4
34 5 7 8
9
6
2
1
12 4598 1713
14
15
1216182123
20 1 22 15 16 11
17
2110
16
10
15
11
14
12
13
7
3
79
9
7 8 17 18 3
1
23
2
24
21
4
456