Sharp CD-BK1600V Service Manual page 18

CD-BK1600V/1800V/190V
FM ANTENNA
SO302
1
BF301
AM LOOP
ANTENNA
CNP302
1
1
2
2
FROM CD
SECTION
CNP11
PB HEAD
L-CH
R-CH
TAPE 1
SWITCHING
REC
P.B.
REC PB HEAD
Q104~
L-CH
Q107
TAPE 2
R-CH
AC BIAS
ERASE
HEAD
6
IC301
2 1 TA7358AP
FM FRONT END
9
4 5
3 8
7
FM
T301
L312
RF
Q302
AM
AM BAND
T306
T303
TRACKING COVERAGE
CNP403
1
FROM KARAOKE 2
SECTION
CNSK1
3
CNS402
R
1
2
L
3
4
IC101
AN7345K
5
PLAYBACK AND RECORD/
PLAYBACK AMP.
1
L(T1) 13
24
R(T1)
P.B
4
2
L(T2)
21
R(T2)
23
3 5
L NF
22 20
R NF
POP H/N
6
T1/T2 7
REDUCE
18
L REC
9
REC
16
8
R REC
17
14
REF
12 10
NOR/
HIGH T1/T2
15 19
SWITCHING
SWITCHING
Q108
Q103
Q109
Q101
Q102
SWITCHING
SWITCHING
BIAS
Q114
Q112
L104
OSC
Figure 18 BLOCK DIAGRAM (3/4)
1
3
T302 CF303
1 2
AM MIX
LA1832S
FM IF DET./
FM MPX./AM IF
23 21 24
FM OSC
X352
VT
4.5MHZ
20 1 22
16
OSC
IC302
LC72131
PLL(TUNER)
7
SWITCHING
FM +B
FM
Q360
+B2
SO401
VIDEO/AUX
L
AUX
R
TAPE
TUNER
CD
+B2
L
PB
R
L REC
R
L NF
R NF
ALC
BIAS
Q113
– 18 –
X351
CF351
1 3
4 5 9 8 1 7 13
AM IF FM
FM+B MO/ST
VCO
GND
DET 14
IC303
L
R
15
FM/AM
MPXIN FM/AM
OUT
18 16
12
7
15 11 4
3 5 6
17
VDD
MO/ST
FM/AM
9 10 21
+B2
7 8 23
R
9 L
DI
L
CE
16
R
CL
10
L
IC401
15
R
LC75341
11
AUDIO PROCESSOR
L
14
R
12
L
13
R
17 18
7 8 3
MUTING
Q110
Q111
+B2
1
2
24 SYSTEM
MUTE
21 Q401
R
Q402
4
L
REC/PLAY
T1/T2
BAIS