Read Sharp CD-C491H (serv.man3) Service Manual online
CD-C491H
– 30 –
A
B
C
D
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G
H
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• NOTES ON SCHEMATIC DIAGRAM can be found on page 22.
Figure 30 SCHEMATIC DIAGRAM (3/20)
DG07
1SS133
DG08
1SS133
RF66
@
1K
RF78
@
1K
RF76
@
1K
RF74
@
1K
RF73
@
1K
RF71
@
1K
RF70
@
1K
RF69
@
1K
RF68
@
1K
RF65
@
1K
RF64
@
1K
RF63
@
1K
RF62
@
100
RF61
@
1K
RF60
@
1K
RF54
@
1K
RF52
@
1K
RF51
@
1K
RF37 1K
RF38 1K
RF39 K
RF40 1K
RF44 1K
RF46 1K
RF49 1K
RF50 1K
RF36 1K
RF35 1K
RF34 1K
RF33 1K
RF32 1K
RF31 1K
RF03
1K
RF04
1K
RF05
1K
RF09 1K
RF10 1K
RF11 1K
RF12
1K
RF13 1K
RF14 1K
RF08 1K
RF07 1K
RF06 1K
RF81
1K
RF82
@
1K
RF83
@
10K
RF84
@
1K
RF85
@
1K
RF86
@
1K
RF87
@
1K
RF88
@
1K
RF91
@
1K
RF92
@
1K
RF93
@
1K
RF94
@
1K
RF95
@
1K
RF96
@
1K
RF97
@
1K
RF59
@
1K
RF58
@
1K
RG55 1K
RF79
@
10K
RF55
@
1K
RG05
10K
RF80
1K
ICF01
IX0254AW
SYSTEM CONTROL
MICROCOMPUTER
CG56
0.022
XF01
CG05
15P
CG06 15P
RF17
0.0
RG04
10K
RG08
@
10K
RG07
@
10K
RG06
@
10K
CG57
47/25
RF28
1K
RF27
@
1K
RF25
@
1K
RF24
@
10K
RF23
@
1K
RF22
@
1K
RF21
@
1K
RF20
@
1K
RF19
@
1K
RF26
@
1K
RF29 1K
RG56
@
1K
RF01
1K
RF02
1K
RF99
@
1K
RG95
470K
QG92
KTC3199 GR
RG96
10K
RG94
10K
RG24
10K
RG38
100K
RG25
@
10K
RF30
1K
RG16
47K
RG19
47K
47K
RG26
10K
RF67
@
1K
RG11
10K
RF98
@
1K
RF48 1K
RG20 10K
RG21 10K
RG22 10K
RG22 10K
RG17
10K
RG15
10K
CH29
0.022
0.022
CH28
0.022
CH15
0.22/50
RH16
470K
DH11
1SS133
CH13
330P
RH14
560K
RH15
33K
CH18
0.22/50
RH24
470K
DH12
1SS133
RH20
1.5K
CH17
0.047(ML)
RH21
560K
RH22
33K
CH16
1/50
CH21
0.22/50
DH13
1SS133
RH29
470K
RH25
1.5K
CH20
0.015
RH26
560K
RH27
33K
CH19
0.47/50
CH24
0.22/50
DH14
1SS133
RH34
470K
RH30
1.5K
CH23
0.0047
RH31
560K
CH22
0.1
(ML)
RH32
33K
CH27
0.22/50
DH15
1SS133
RH39
470K
RH35
1.5K
CH26
0.0012
RH36
560K
CH25
0.027
0.027
(ML)
RH37
33K
ICH11
NJM4558M
MOTOR DRIVER
RH11
150K
RH12
1K
CH10
47P
RH13
150K
RH17
1.5K
DH16
1SS133
DH17
1SS133
DH18
1SS133
DH19
1SS133
DH20
1SS133
RF47 1K
RF53
@
1K
CH30
0.0056
(ML)
RF75
@
1K
RF77
@
22K
RF42 1K
RF43 1K
CG08
0.001
0.001
PRE R-CH
PRE L-CH
REC R-CH
REC L-CH
GND(A)
VSS
VDD
PL4
PL0
PL1
PL2
PL3
PL3
PC2
PC3
PC1
PC0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PA6
PA5
PA3
PA4
PA2
PA7
PB0
VDD1
CF2
CF1
VSS1
P74
P75
P17
P16
P34
P35
P35
P00
P01
P02
P01
P02
P03
P04(PCCL)
P04(PCCL)
P30
P31
P31
VSS3
VDD3
P32
P33
P33
MIC_DET
9K/10K
SCK
SO1
SCK1
SO0
Si0
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
INT1
INT2
INT3
SI1
INT0
GND(
µ
-CON)
GND(A)
+12V(A)
+4V(
µ
-CON)
TAPE_SOL
HIGH_SP
TA_BIAS
PB_MUT
TA_T1/T2
REC_MUT
REC_MUT
V1/V2
AC3_SCK
AC3_SO
AC3_SIN
AC3_SS
AC3_RES
DGTL2
DGTL1
CD_O/C_SW
CD_U/D_SW
CD_DNO_SW
H/P SW
–15V
+12V(A)
GND(A)
AUTO_SCAN
VSS
VDD
FR SPEED(M)
TA MOTOR
CAM_SW
T2_CRO S
T1_CRO S
T2_B-FP S
T2_A-FP S
T2_B-FP S
T2_A-FP S
PUIN
RES(MAIN)
TA_FR SPEED
M2GND
SO
AC32SO
VOLT_SW
AD RES
SP_CONF
POWER
VR ST
VR CLK
VR DATA
FUNC B
FUNC A
S.W.MUT
CENT_MUT
REAR_MUT
SYS_MUT
TUN_MUT
CL
CE1
TUN_SD
FRNT_RLY
FAN CONT
CENT_RLY
REAR_RLY
S.W.RLY
GND(CD2)
GND(CD1)
GND(CD1)
GND(D)
+7.3V(CD)
+12V(M)
+4.6V(D)
+12V(M)
+4.6V(D)
+4V
AUX
L-CH OUT
GND(A)
R-CH OUT
L-CH OUT
GND(A)
R
C
H
OUT
VIDEO2
VIDEO1 IN
P34 2-G
TO PRE SECTION
AUX 2
AUX 1
(1/2)
8
4
1
3
2
+
–
7
(2/2)
5
6 –
+
16KHz
SPE-1
SPE-1
AMP
QS_AC
QS_MO
DO(TU)
DI(TU,VR,PR)
L
CL
CE1
MUTE
R
DRF
RES
CQCK
SQOUT
COIN
WRQ
RWC
SLD+
SLD–
OP/CL
PUIN
U/D
D2NO
RES
RWC
CFWU02
94
IC
CLK2
DO
DI
7
SP_4K
SP_1K
63Hz
SPE-2
250Hz
SPE-3
1KHz
SPE-4
4KHz
SPE-5
TAPE L
TAPE R
TUN R
TUN L
AUX 1
QS_SPRED
VOICE-C
TA_R/P
TA_PB-EQ
SD
DATA1
RESET
COM1
+12V(M)
GND(D)
GND(D)
STB
SCK1
+4.6V(D)
1
CNPF01
2
3
4
5
6
7
8
9
10
CNSD01
P40 1-C
TO DISPLAY PWB
RES
DAT
STB
STB
SCK
COM
+B
+B
+B
+B
+B
+B
+B
1
1
2
2
3
3
BIF11
CNSF11
+12V(M)
GND(CD)
+7.3V(CD)
CNP12
RWC
WRQ
COIN
SQOUT
CQCK
RES
DRF
D_GND
SLD+
SLD–
PUIN
DISC_NO
UP/DOWN
OP/CL
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
BIF12
CNSF12
P29 7-H
TO CD SERVO PWB
P29 12-C
TO CD SERVO PWB
CNP11
RF41 1K
BEAT CUT
+B
+B
+B
8
18
85
80
18
84
+B
+B
+B
+B
–B
–B
–B
+B
+B
+B
+B
1
BIF13
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
1
CNSF13
SM
SM
R-CH
L-CH
TUN MUTE
SD
GND(A)
+12V(A)
DI
CE(CE1)
DO
CL
GND(D)
CNP303
P39 12-C
TO TUNER PWB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
54
55
23
24
25
26
27
TA_T1/T2
PB_MUT
PRE L-CH
HIGH_SP
PRE R-CH
GND(A)
+12V(A)
TA_BIAS
REC L-CH
REC R-CH
TA_R/P
REC_MUT
BEAT_CUT
TA_PB-EQ
GND(D)
TA_MOT_SW
M +12V
TA_SOL
T2_A_FP
TA_CAM_SW
M_GND
T1_RUN
T2_B_FP
T2_RUN
T1_CrO
2
T2_CrO
2
P33 12-B
TO MECHA SECTION
P33 12-E
TO DECK SECTION
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
31
32
33
34
35
36
37
43
42
41
40
39
38
50
49
48
47
46
45
44
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
10 0
DEM1
DEM0
1
2
P06
P07
P05
DS_RES
CQCK
SLD–
SLD+
COIN
SQOUT
SP_16K
TUN_SM
POSISTOR
T1_RUN
SP LEVEL
SYS_STOP
SP PROT
T2_RUN
SP_250Hz
SP_63Hz
30
PA0
PA1
51
PC5
PC4
PF3
PF2
PF1
PD2
(DO)PD3
PD4
(DI)PD5
PD6
PD7
PE0
PE1
PE2
PE3
PE4
PE5
PE6
PE7
PF0
PD1
PD0
PC7
VSS2
VDD2
PC6
PF7
PF6
PF4
PF5
80
PL6
PL5
+B
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