Sharp CD-C482 Service Manual page 18

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