Sharp CD-C449W Service Manual page 27

+4V(µ-CON)
GND(µ-CON)
+4V
RNT_RLY
RF50 1K
RF49 1K
AN CONT
MP
RF47 1K
B_MUT RF46 1K
A_T1/T2 RG55 1K
REC_MUT RF44 1K QG05
KRC104 M
RF42 1K
A_R/P 4.1V
EAT_CUT RF41 1K
0V
RF40 1K
A_BIAS
0V
R SPEED(M) RF39 1K
RF38 1K
IGH_SP
RF99
10K
A MOTOR RF37 1K
RF36 1K
APE_SOL
10K
RG17
CAM_SW RF35 1K
RG20 10K
RF34 1K
2_CRO S
RG21 10K
1_CRO S RF33 1K
RG22 10K
RF32 1K
2_B-FP S
RF31 1K
2_A-FP S
RG15
10K
0
6
K
9
26
K
CU45
CU09
1/50
10/50
RU05 RU03
2.7K 15K
CU58 CU11
2.2/50 100P
49
LSELO
(5.0V)
AUX 2
CU35 2.2/50
L5
50
CU07 2.2/50
51
L4
CU05 2.2/50
52
L3
2.2/50
CU03
53 L2
RU93
CU01 2.2/50
54
L1
1K
55
VDD
RU94 CU02 2.2/50
56 R1
1K
CU04 2.2/50
57 R2
2.2/50
CU06
58 R3
CU08 2.2/50
59
R4
2.2/50
CU36
60 R5
CU46 RINVIN1
61
(5.0V)
1/50
RSERO
62
(5.0V)
RTIN
63
(5.0V)
CU12
64
100P
RU04 15K
RU06
2.7K
CU10
10/50
27 28 29 30 31 32
VIDEO1 IN VIDEO2 IN
TO PRE SECTION
P28 2 H
7
RG37
1K
DG05
1SS133
CG04
0.01
2.2µH
+B +12V(A)
–B –15V
CU17 CU23
0.18 0.15
CU15 CU21 CU27
CU25
(ML) (ML)
0.22/50
0.47/50 0.027
0.22/50
CU57
2.2/50
48 47 46 45 44 43 42 41 40 39
(5.0V)
(5.0V)
(5.0V)
(5.0V)
(5.0V) ICU01
(10.1V)
LC75396N
(5.0V)
AUDIO PROCESSOR
(5.0V)
(5.0V)
(5.0V)
(5.0V)
1 2 3 4 5 6 7 8 9 10
CU16
0.47/50
CU18 CU22 CU24 CU28 CU30
0.18 0.22/50 0.15 0.027 0.015
(ML) (ML)
DU02
CU63
CU64
1SS133
0.022 100/16
8
Figure 25 SCHEMATIC DIAGRAM (4/15)
QG02
KTC3199 GR
QG01
KRC102 M CG03
RG35
RG33
1K
3.3/50
10K
3
4.0V
4.0V
2
0V
4.0V
RG34
10K
1 0V
0V
0V
0V
RG39 QG03
82
KTC3199 GR
+4V
LG01
+B
–B
FM SIGNAL
PLAYBACK SIGNAL
RECORD SIGNAL
CD SIGNAL
REC L-CH
RU21 1K
RU26 1K
RU25 1K
REC R-CH
RU22 1K
CU29
0.015
CU39
10/50
38 37 36 35 34 33
CU42
10/50
(5.0V)
LFCOM
32
(5.0V)
LFOUT 31
CU61
30
(5.0V) LRIN
10/50
29
(5.0V) LRCOM
CU52
28
(5.0V) LROUT
10/50
(5.0V) LVref 27
26
(0.1V) VSS
RU09 1K
25
(0V) CE
RU10 1K
(CON SIDE DO)
DI 24
RU11 1K
(0V)
(0V) CL 23
CU43
(5.0V)
Vref 22
47/16
(0V) RVref 21
(5.0V)
RROUT 20
CU51
RRCOM 19
10/50
(5.0V)
18
RRIN
(0V)
17
RFOUT
(5.0V) CU62
10/50
11 12 13 14 15 16
CU41
10/50
CU32
CU40
0.0022
10/50
CU34
0.0047
DU01 RU02
1SS133
470K
33
VOLUME
TO PRE SECTION
P28 6-H
9 10
– 25 –
CD GND(D2)
CD GND(D1)
GND(D)
+7.3V(CD) +B
+12V(M)
+B
+4.6V(D)
DG03
1SS133
RESET
POINT
RG32
100
0.4V
RG31
RG30
RG29 CG01
1K
150
150 470/10
CD-C449W
ONLY
RU23
RU24
CU55
47/16
+B
MAIN PWB-A(1/ 4 )
34 35
OUT
11
CD-C449W/K449W
CD GND(D2)
36
CD GND(D1)
37
GND(D)
38
39 +7.3V(CD)
+B
+12V(M)
40
+4.6V(D)
41
42 AMP
S-MUTE
43
SP PROT
44
45 POSISTOR
46 H/P SW
SP LEVEL
47
FAN CONT
48
49 FRNT RLY(1)
POWER
50
CL
51
DI
52
53 CE
GND(M)
54
+B
+12V(A)
55
–B
–12V
56
GND(BIAS)
57
GND(A)
58
GND(D3)
59
60 OUT(L)
61 OUT(R)
62 IN(L)
63 IN(R)
64 GND(A)
+12V(A)
65
66
PASS
67 SRS A
68 SRS B
69 SRS INH
CD-K449W
ONLY
1
V, CAN
1K
OUT(L)
2
FROM
3 IN(L)
KARAOKE PWB
GND(A)
4 P36 3-A
+12V(A)
5 CNSU02
1K
OUT(R)
6
IN(R)
7
GND
8
MIC
9
CNPU02
12