Sharp CD-BK3200V Service Manual page 26

Video cd mini system
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CD-BK3200V
FM
ANTENNA
SO302
FM ANTENNA
TERMINAL
AM LOOP
ANTENNA
1
1
2
2
ICK1
M65856SP
MIC AMP.
JK1
MIC
LATCH
CLK
DATA
MIC IN
LOUT
9
ROUT
12
L IN
R IN
13
VRK1
VCC
MIC
VOLUME
QK1
+B4
JK671
VIDEO OUT
FROM
VIDEO CD
SECTION
CNP10
FROM CD SECTION
CNP8
TAPE 1
P.B. HEAD
L-CH
R-CH
REC
P.B.
L-CH
R-CH
TAPE 2
REC/P.B.
AC BIAS
HEAD
ERASE
HEAD
IC301
TA7358AP
BF301
1
FM FRONT END
B.P.F
3
4
5
7
FM RF L312
OSC
BUFF
AM TRACKING
AM BAND
T303
T306
COVERAGE
40
41
42
+B4
36
35
8
31
5
32
6
23
L
7
1
R
ICK2
2
KIA4558P
3
OPE AMP.
CNS601
1
2
IC101
3
AN7345K
PLAYBACK AND RECORD
/PLAYBACK AMP.
L(T1)
1
24
R(T1)
P.B
L(T2)
2
23
R(T2)
Q103~
L NF
3
Q106
R NF
22
T1/T2
POP REDUCE
6
L REC
REC
9
16
R REC
14
REF
NOR/
12
HIGH
15
SWITCHING
SWITCHING
Q107
Q111
Q108
Q109
SWITCHING
Q128
L104
BIAS
OSC
Figure 26 BLOCK DIAGRAM (2/3)
FM IF
FM IF
6
CF303
T302
9
8
IC303
1
LA1832S
AM MIX
T301
FM IF DET./
FM
FM MPX./
OSC
AM IF
23
Q302
X352
VT
4.5 MHz
20
1
22
OSC
+B4
7
+B
FM
FM
Q360
CONSTANT
VOLTAGE
JK601
VIDEO/AUX IN
L
R
13
+B4
4
L
PB
21
R
5
20
H/N
L
REC
7
18
R
8
L NF
17
R NF
10
ALC
T1/T2
19
SWITCHING
Q110
Q124
Q126
BIAS
SWITCHING
– 26 –
+B4
CF351
450 kHz
+B4
T351
CF352
AM IF
2
4
5
9
8
17
MO/ST
21
7
18
16
12
+B4
15
16
11
3 4
5
6
17
FM/AM
MO/ST
9 10
21
+B4
23
9
L
16
R
L
10
TAPE
IC601
15
R
LC75341
L
11
TUNER
AUDIO PROCESSOR
14
R
L
12
CD
13
R
7
8
17
18
3
L
R
Q121
Q122
MUTING
X351
456 kHz
13
L
14
R
15
23
~
29
3
22
IC7
D163
14
FL DIS
13
VDD
DRI
+B6
9
1
DI
CE
2
CLK
2 4
21
R
Q603
Q604
4
L
SYSTEM
MUTE
REC/PLAY
10
11
83 82
12
IC7
IX0413A
17
84
2
9 13 14
+B6

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