Sharp CD-C3800 - Dolby Pro Logic

CD-C472/C3400/C3400C/C3800/C3800C
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Figure 18 BLOCK DIAGRAM (2/3)
J501
VIDEO/AU
X
L
R
L-CH
R-CH
PB HEAD
1
2
3
4
L NF
L (T1)
R (T1)
L (T2)
R (T2)
R NF
4
5
13
21
24
23
18
17
10
1915
12
14
16
20
H/N
6
7
8
9
T1/T2
POP REDUCE
L REC
R REC
R NF
REC
L NF
P.B.
REC
L-CH
R-CH
REC/PB
HEAD
ERASE
HEAD
BIAS
OCS
REF
ALC
HIGH
NOR/
T1/T2
1
GND
3
4
5
1
X352
4.5MHz
OSC
7
STEREO
FM/AM
SWITCHING
ST
ST
1
2
3
4
57
8
6
FM IF
OSC BUFF
AM IF
FM IF IN
VT
FM RF FM OSC
FM
OSC
FM IN
AM IN
FM
5
3
AM MIX
AM IF
6
9
FM/AM
FM+B
21
20 13 15
10
111617
DET OUT
MPX IN
24
2223
AM OSC IN
AM+B
AM RF IN
FM DET
VCO
FM DET
MO/ST
+B4
9
AM TRACKING
AM BAND
COVERAGE
+B4
L
R
PLAYBACK&RECORD/
PLAYBACK AMP.
IC101
AN7345K
L
R
P.B
IC301
FM FRONT END
TA7358AP
FM BPF
FM/AM IF
IC303
LA1805
TA
P
A
TU
C
D
FROM CD SECTION
Q128
L104
Q124
Q126
BIAS
Q103
Q106
~
P.B
REC
AC BIAS
Q107
Q108
Q111
Q109 Q110
T1/T2
MUTING
Q121
Q122
REC
+B4
L
R
Q344
7
6
CE
DI
CL
DO
22
10
20
15 16
21
17
11
Q343
T351
T352
VR351
CF301
T301
L303
Q302
L302
T302
AM ANT.
IC302
LC72131
PLL CONTROLLER
FM
MPX VCO ADJ
TAPE 1
TAPE 2
R
L
FM OSC
BF301
SWITCHING
SWITCHING
SWITCHING
SWITCHING
SWITCHING
FM&AM LOOP ANT
VOLTAGE
REGURATER
+
B
SWITCHING
BIAS
FM +B
RT-IN LT-IN L-OUT R-OUT
CL
+B4
CL
DATA
DATA
ENABLE
X501
8
18
45
44
23
24
IC501
LV1035M
DOLBY PRO LOGIC
DECORDER
38
35
37
36
42
33
31 32
34
21