CD-BA3000 (serv.man4). Part 2 - Notes on diagrams, Block diagrams, Schematic diagrams - Sharp Audio Service Manual (repair manual). Page 3

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CD-BA3000H
– 16 –
-B2
+B4
-20dB
ATT
SYSTEM
MUTE
Q605
Q606
Q603
Q604
DO
CL
DI
CE
MO/ST 
+B4
+B5
FM+B
FM+B
SWITCHING 
+B4
+B4
+B4
IC860
KIA4558P
OPE AMP.
–B2
FM/AM 
IC302
LC72131
PLL(TUNER)
ICT21
LC72720
RDS DECORDER
FM/AM
OUT 
+B4 
L
R
BIAS
T1/T2 
REC 
MUTING
Q121
Q122
AC BIAS 
JK601
VIDEO IN
AUX 
TAPE
TUNER 
CD
P.B
CNS11
FROM CD SECTION
CNP11
ERASE
HEAD
SWITCHING 
SWITCHING 
SWITCHING 
BIAS
Q110
Q111
Q109
Q126
SWITCHING 
Q124
L103
BIAS
OSC
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
IC99
TOTX1784
OPTICAL FIBER
DATA LINK
H/N 
P.B 
+B4
R  
R  
L  
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 
Q103-
Q106
L(T2)
R(T2)
R(T1)
L(T1)
IC101
AN7345K
PLAYBACK  AND  RECORD
/PLAYBACK  AMP.
R
L
FM/AM 
MPXIN 
STEREO
AM RF IN
AM OSC IN 
AM IN 
FM IN 
AM OSC OUT
FM +B 
FM
VT
VCC
FM  OSC
OSC 
X352
4.5MHZ
XT21
4.332MHZ
AM BAND
COVERAGE
AM
TRACKING 
T303
T306
X351
456kHz
MO/ST
VCO
FM
DET
VCC
GND
AM IF
CF351 
IC303
LA1832S
FM IF DET./FM MPX./AM IF 
AM MIX
CF352 
T351
CF301
FE301
TA7358AP
FM FRONT END
AM LOOP
ANTENNA
SO301
FM ANTENNA 
TERMINAL
9
10
18
11
16
3
8
4
15
10
9
7
7
1
8
17 18
4
1
8
4
7
21
12
13
1
2
3
20
19
7
18
10
8
17
13
21
4
5
2
3
4
6
9
16
12
15
1
5
1
2 4 3
3
7
4
3
8
21
7
9
8
5
17
6
21
2
1
20
22
23 22 21 20
11
17
16
15
15 14 13
12
5
1
2
6
13
14 
12
15
16
4
7
CF303
Q360
Q301
4
24
23
14
14
23
24
P.B 
REC 
3
2
1
FROM CD SECTION
CNP5
23
+B4
AM IF
1
2
VDD
+5V
OPE
AMP.
KIA4558P
IC561
IC562
IC563
VCC
Q862
Q863
CNS99
+B4
ZD351
L354
LOW PASS
FILTER
L341
BALUN
CE
DI
CL
DO
VSSD
VDDD
XIN
XOUT
MPX IN
VSSA
VDDA
CNP301
 Figure 16 BLOCK DIAGRAM (2/3)
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