Sharp CD-BK260V Service Manual page 20

CD-BK260V/CD-BK2700V/CD-BK280V
FM
ANTENNA
AM LOOP
ANTENNA
ICK1
M65856SP
JK1
MIC AMP.
MIC
40
LATCH
41
CLK
DATA 42
MIC IN
LOUT 36
9
35
ROUT
31
12 L IN
32
13 R IN
22 23
VCC
+B5
VRK1
QK1
MIC
VOLUME
PLAYBACK
HEAD
TAPE 1
REC/
PALYBACK HEAD
TAPE 2
ERASE
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IC301
SO302 TA7358AP
FM ANTENNA
FM FRONT END
TERMINAL
BF301 1
B.P.F
2 4 5
3
FM L312
RF
CNP301
AM TRACKING
1
2
T303 T306
LC72131
PLL(TUNER)
8
CONSTANT
VOLTAGE
5
6
L
7
1
R
JK690
2
VIDEO/AUX IN
3
R
L
ICK2
KIA4558P
CNP11
OPE AMP.
FROM CD SECTION
L(T1)
1
L-CH
R(T1) 24
R-CH
L(T2)
2
REC
R(T2) 23
SWITCHING
P.B.
L-CH Q103- L NF
3
Q104
R-CH
R NF
22
6
POP REDUCE T1/T2
AC BIAS
REC
L REC
9
16
R REC
REF 14
NOR/
12
HIGH
15
SWITCHING
SWITCHING
Q105
Q114
Q106
Q112
SWITCHING
BIAS Q111
OSC L103
HEAD
Figure 20 BLOCK DIAGRAM (2/3)
FM IF
T302 CF303
6
9
T351
7 8
AM IF
1 2
T301
FM
OSC
23 21
OSC BUFF
Q302
AM BAND
COVERAGE
X352
VT
4.5 MHZ
IC302
1
20 22 15 16
OSC
+B4
7
+B
FM
FM
Q360
TAPE
AUX
CNS601
TUNER
1
CD
2
3
+B4
13
P.B
L
4 PB
21
R
5
20
H/N
L REC
7
R
18
IC101
L NF
8
AN7345K
R NF
17
PLAYBACK AND RECORD
ALC
10
/PLAYBACK AMP.
T1/T2
19
Q113
BIAS
Q110
Q109
MOTOR
SWITCHING
DRIVER
+B3 Q109
Q707
+B3
Q708
SOLENOID
DRIVER
– 20 –
10.7 MHz
X351
450kHz
CF351
456 kHz
CF352
4 5 9 8 17 13
14
L
R 15
7 18 16 12
IC303
LA1832S
FM IF DET.
FM MPX./
AM IF MPX.
3 4 5 6
11
17
9 21
10
+B4
23
1
L 9 DI
2
CE
16
R
L
CLK 24
10 IC601
–20 dB
15
R R ATT
21
LC75341
L
11
4 L
AUDIO PROCESSOR
14
R
L
12
13
L R
R
7 18 8 17 3
Q107
+B4
Q108
MUTING
8
IC561
4
IC562
–B2
IC561,IC562
KIA4558P
OPE AMP.
TAPE
MECHANISM
ASS'Y
+B4
Q601
Q602
REC/PL
1
7