Sharp CD-C482, Service Manual

Page: 18 / 68

CD-C482
– 18 –
Figure 18 BLOCK DIAGRAM (4/5)
7
1
24
2
23
3
4
4
21
5
20
6
7
17
18
8
9
16
12
10
15 19
13
14
1
2 3 4 5 7 8
6
9
1
5
3
6 21
16
24 22 23
13 20
16 15 11
7
17
15
10
11
20
1 22
21 6 3 4 5
17
7
9 10
20 19 18 17
40
41 42
44
27
21
10 9
5 3
7 1
8 4
7 16
12
1
14
5
15
11
2
4
2
8
4
1
7
3
5
8
4
1
7
3
5
8
4
1
7
3
5
FM
AM
SPE IN
H/N
T1/T2
ERASE
HEAD
R–CH
L–CH
PB HEAD
L–CH
R–CH
REC/PB
HEAD
P.B
AC BIAS
P.B
REC
TAPE 2
TAPE 1
T1/T2
SWITCHING SWITCHING
BAIS
L NF
L(T1)
R(T1)
L(T2)
R(T2)
R NF
L
R
POP REDUCE
L REC
R REC
ICK01
AN7345K
PLAYBACKuRECORD AMP
L
R
REC
P.B.
REC
ALC
NOR/
HIGH T1/T2
REF
+B7
P.B
REC/PB
MUTING
MUTING
PB MUTE
REC MUTE
HI SPEED
L NF
R NF
SWITCHING
SWITCHING
SWITCHING
M
MOTOR
+B2
TA MOT H/L
HI SPEED
TA MOT SW
DRIVER
MOTOR
DRIVER
T2 A/B-FP
SWM3
SWM4
T1 RUN SW
CAM SW
FAS SW
PHM1
TA PUL
+B2
SOLM1
DRIVER
TA CUM SW
BAIS
T2 PH–IN
T2 PH-OUT
FM BPF FM IF
OSC BUFF
FM RF
FM
OSC
Q302
T302
A1064
AM RF
AM ANT
IC301
FM FRONT END
TA7358AP
BF301
L302
T301
T304
B1074
AM OSC
FM IF
CF301
FM OSC
FM +B
Q344
+B7
GND
AM IF
FM IF IN
AM MIX
IC303
LA1805
FM/AM IF+MPX
FM DET
FM DET
MO/ST
T351
FM IN
AM
IN
IC302
LC72131
PLL CONTROLLER
+B7
+B7
AM OSC IN
AM+B
AM RF IN
STEREO
+B7
+5V
MONO/ST
FM MONO/ST
VOLTAGE
REGURATER
OSC
X352
4.5MHz
FM/AM DET OUT
MPX IN
FM +B
Q342
Q343
L
DI
CL CE DO
FMOSC
FM
FM/AM
SWITCHING
ICQ
QS77
QSO
L
B.P.F
T352
VR351
MPX VCO ADJ
R
L–IN
R–IN
L–OUT R–OUT
C–IN
C–OUT
SL
–
IN
SL
–
OUT
TO AC-3
L
R
L
R
R
L
L
R
TAPE
L
R
R L
R L
IN
OUT
ICZ09
NJM4565D
LINE AMP.
–B10 +B10
+B10
–B10
TUNER
VCR 1
VCR 2
ICH11
NJM4558M
MOTOR DRIVER
ICZ08
TC4052BP
DUAL 4CH ANALOG
MULTIPLEXER
QK21
QK22
QK26
QK24
QK28
LK04
QK07
QK08
QK11 QK10
QK09
QK03 QK05
QK04 QK06
QK19
QK15
QK16
QL15
DRIVER
QL13
QL11
QL12
QL19
QL18
QL14
QK17
QK18
L
JR12
VCR/AUX2
+B7
–B6
OUT
+B7
–B6
OUT
L
R
IN
+B7
–B6
OUT
ICR13
NJM4565M
BUFFER AMP.
ICR12
NJM4565M
BUFFER AMP.
R
L
L
R
L
R
LS
RS
RS
C
C
SW
SW
C
JR13
PRE-OUT
FUNC–B
FUNC–A
MUTE
MUTE
MUTE
L
JR11
VCR/AUX1
QR19
QR20
QR17
QR18
QR15
QR16
LS
SO301
ANTENNA
TERMINAL
L303
R
AM IF VCC VCO
IN
SW
ICR14
NJM4565M
BUFFER AMP.
IN
QL17
R
R
REC/PB