Sharp CD-C470H Service Manual page 20

CD-C470H,C470E,C480H/CP-C470H,C470E,C480H
SO301
ANTENNA
TERMINAL
FM FRONT END
8
FE301
2 6 7 3
AM LOOP
ANTENNA
L341
BALUN
AM RF
MW/LW MW/LW
ANT. OSC.
T301
T302
FROM CD UNIT
MM1
MOTOR
TAPE
DRIVER
MOTOR
M
DRIVER
REC FWD
SWM3
REC RVS
SWM4
CAM SW
SWM6
FAS SW
SWM5
PHM1
SOLENOID
SOLM1
T1 CrO
2
SWM1
T2 CrO 2
SWM2
PB HEAD
L-CH
TAPE 1
R-CH
REC
REC/PB
HEAD P.B
L-CH
TAPE 2
R-CH
ERASE
HEAD
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FM IF
AMP
FM IF FM IF
CF301 Q301
1 CF302
FM IF IN
5
4
1
OUT
VR351
LA1832
FM MUTE LEVEL
AM OSC
24 23
FMOSC
T305
T306
X352
4.5MHz
+B3
1
20 22
OSC.
FM
Q360
7
23 22 21 20 15 14 13
ICT21
LC72720
2 4 3 12
+B2
TA MOT SW
QM02
SWITCHING
DRIVER
HI SPEED
QM01 QM04
TA MOT H/L
QM05
REC FWD
REC RVS
CAM SW
F.A.S
+B2 +B2
RUN PULSE
DRIVER
SOLENOID
QM03
T1 CrO
2
T2 CrO
2
PLAYBACK&RECORD AMP.
IC101
AN7345K
L(T1)
1
P.B.
R(T1) 24
P.B L(T2)
2
21
R(T2) 23
REC/PB L NF
3
R NF
4 20
Q103,Q104
H/N
Q105,Q106
POP REDUCE 6 T1/T2
REC
18
L REC 9
R REC 16
Q107 REF 17
14
Q109
AC BIAS
Q108
10
+B7
13
NOR/
HIGH T1/T2
12
15 19
Q110 Q111
Q128
L103
Q129
Q130
CD-C480H
ONLY
Figure 20 BLOCK DIAGRAM (2/3)
SM
+B3 CF351 X351
AM IF
T351
2 3 4 5 8 9 17 29 20 18 16
REG IN GND VCC FM/AM MPX
OUT IN
IC303
FM IF DET/FM MPX/AM IF
IF
OUT
7 6
22 21 13 10 11 12 14 15
L R
MPX
MUTING
PHASE
Q353
MPX
VCO
Q361 Q354
CUT
TUNER MUTE
VOLTAGE
REGURATER
+B3
+5V
15 16 11 10 13 12 17
IC302
TC72131
7
PLL(TUNER)
3 4 5 6
21
CD MUTE
Q83
Q84
CD
TAPE
TUNER
AUX
HI SPEED
L R
VIDEO1
PB MUTE
Q117
Q118
MUTING
P.B
REC MUTE
4 L
Q121
R Q122
MUTING
5
L
REC
7
SWITCHING
R
8 L NF Q115
Q116
R NF
ALC
Q119
SWITCHING
T1/T2
REC/PB
SWITCHING SWITCHING
BAIS
Q124 Q126
BEAT CUT
– 20 –
AMP.
FL701
QT21
41 40 37
VF2
(AC)
SD
+B1
52 30 29 8
71 48 33 20
REC MUTE
80
HI SPEED
76
BEAT CUT
75
BIAS
72
T1/T2
70
PB MUTE
69
REC RVS
68
REC FWD
67
IC601
TA MOT SW
IX0171AW
51
SOLENOID
50 MICROCOMPUTER
F/R SPEED
49
CAM SW
31
RUN PULSE
23
F.A.S
22
REC/PB
2
T1 CrO 2
56
T2 CrO
2
47
43 42 41 45 39 38 37 61
+B3
23 24 25 56 14 34
L VDD
55
IC501
57
R
LC75396E
L
53
AUDIO PROCESSOR
R 59
L
54
GRAPHIC EQUALIZER
58
R
L
52
R 60
AUX
L
51
FRONT
R 61 IN VSS
4
48 64 49 63 26 42 5 43
LTIN RTIN L R L R
X-BASS
J501
L R
IN
VIDEO2
R-IN
L-IN
9
10
IC201
CL
42 LA2786
C-OUT
DI
41 34
ENEBLE
40
38 37 36 35 8
+B3
7 8 9 10 14
DI L-MIX OUT
2
16
IC202
CL
3
15 R-MIX OUT
ENEBLE LV1016
4
S-OUT
D-GND
1 13
A-GND
23 24 17
R-OUT
L-OUT
17 18
IC451
Q461 1 VCC
L-IN
SRS5250S
R-IN
15 VDD
SRS
MODE
11 10 25 24
+B3
SRS STEREO
CD-C480H
SRS MONO
ONLY
MODE1-5
IC453(2/2)
IC453(1/2)
BU4052BC FUNCTION
FUNCTION
SELECTOR
SELECTOR
~ 8 6 5
VP
14 15 16 17 18
~
57 66 65 64
VO
VO
CENTER
REAR
IN
6 42 18 30
L R
S-IN C-I
Q46
Q46
27 Q46
28 Q46
26
PASS
Q46
MONO
Q45
Q46