Sharp CD-C491H (serv.man4) Service Manual ▷ View online
– 33 –
CD-C491H
Figure 33 SCHEMATIC DIAGRAM (6/20)
7
8
9
10
11
12
RK57
4.7K
QK19
KRC104 M
CK41
47/25
CK46
220/10
CK45 22/25
RK50 10K
RK58
150(1/2W)
ICK01
AN7345K
PLAYBACK AND RECORD
/PLAYBACK AMP.
QK15
KRC104 M
SWITCHING
CK37
0.018
CK10
47/25
CK35
0.022
RK41 82
LK01
1.8mH
CK33
22/25
RK39 560
CK31 270P
CK29
470P
RK37
6.8K
RK35
6.8K
K33
2K
CK39
0.0033
CK42
47/25
CK34
22/25
CK38
0.018
CK36
0.022
RK38 6.8K
CK32
270P
CK30 470P
6
.8K
3
.3/25
CK47 0.022
RK45 10K
RK49 10K
CK40
0.0033
RK47
10K
CK44
0.022
CK43
0.022
RK48
10K
RK43
10K
RK46
10K
RK52
1K
RK67
47K
QK28
2SC2236 Y
LK03
1mH
CK52
47/16
RK62
47K
RK72
56K
RK64
4.7K
QK27
KRC104 M
RK73
56K
CK50
0.0082
(P.P)
CK51
0.027
(ML)
RK68
4.7
LK04
330
µ
H
QK31
KTC3199 GR
QK32
KTC3199 GR
RK70
4.7K
RK71
3.3K
CK61
560P
RK53
10K
RK54
10K
RK55
22K
RK56
22K
16
9
8
18
7
17
RK65 10K
RK60
270
RK61
270
CK62
0.047
(ML)
RK66
27K
RK42
82
RK40
560
LK02
1.8mH
RK74
68K
RK75
68K
QK30 KRC104 M
RK81
6.8K
RK63 10K
CK55
0.022
CL13
3.3/50
RL24 3.3K
QL17
RC104 M
WITCHING
QL18
KRC104 M
QL19
KRC104 M
DRIVER
QL16
KRC107 M
DL11
1SS133
G
QK40
KRC107 M
QK29
KRC107 M
1
2
3
4
5
6
7
8
9
RECORD SIGNAL
PLAYBACK SIGNAL
GND(D)
PB.MUTE
GND(A)
12V(A)
VCC
RIPPLE
ALC
ALC
HI.SP
–
+
+
56K
+
56K
HI.SP
HI.SP
BIAS
T1-CrO
2
T2-B-FP
TA-MOT-SW
M-12V
TA-CAM-SW
T1-RUN
T2-RUN
T2-A-FP
M-GND
TA-F/R SPEED
TA-SOL
HIGH=HI-SP
NOR/HIGH
1
3
1
2
3
1
2
1
2
3
+B
M-12V
TA-CAM-SW
T2-A-FP
M-GND
TA–F/R SPEED
T1-RUN
T2-RUN
TA-SOL
TA-MOT-SW
T2 CrO
2
H:CrO
2
L:NORM
T2-B-FP
T1-CrO
2
PB.MUTE H:ON L:OFF
HI. SP H:LOW L:HIGH
PRE R-CH
TA T1/T2 H:T1 L:T2
MUTING
QK17
2SC2878 A
MUTING
QK18
2SC2878 A
1
2
3
SWITCHING
QK16
KRC104 M
1
2
3
1
2
3
SWITCHING
SWITCHING
QK24
KTA1266 GR
SWITCHING
QK26
KRC104 M
SWITCHING
QK25
KTA1266 GR
1
2
3
1
2
3
MUTING
QK22
KTC3199 GR
MUTING
QK21
KTC3199 GR
1
2
3
1
2
2
3
3
1
QK29,QK30,
QK40:SWITCHING
+B
+B
BIAS H:ON L:OFF
REC R-CH
REC L-CH
TA R/P H:PB L:REC
REC MUTE
TA PB EQ L:NORM H:CrO
2
+B
BEAT CANCEL
3
10
11
12
PRE L-CH
13
14
15
16
17
18
–
54
55
19
20
GND
15
14 13
12
11
10
23
24
25
26
27
MAIN PWB-A(2/5)
12V
12V
4.0V
0V
0V
0V
0V
0V
0V
4.1V
0V
0V
0V
0.6V
3.0V
0V
3.7V
6.0V
0V
0V
3.0V
3.0V
0.6V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0.7V
0.7V
0.7V 0.7V
0V
0V
0V
0V
0V
0V
0V
0V
0V
11.7V
11.6V
11.7V
0V
0V
0V
0V
11.7V
11.7V
TO MAIN SECTION
P30 1-G
TO MAIN SECTION
P30 1-G
CD-C491H
– 34 –
Figure 34 SCHEMATIC DIAGRAM (7/20)
A
B
C
D
E
F
G
H
1
2
3
4
5
6
• NOTES ON SCHEMATIC DIAGRAM can be found on page 22.
RR19
47K
CR15
4.7/50
RR21
47K
CR17
4.7/50
QR11
KRA107 M
QR13
KRA107 M
RP12
100
RP11
100
CP30
2.2/50
RP34
1K
RP36
100K
RP35
100K
CP29
2.2/50
RP33
1K
QP11
2SC2878 A
RP29
5.6K
CP25 0.001
CP26 0.001
RP30
5.6K
QP12
2SC2878 A
RP27
47K
RP28
47K
4
3
2
1
ICP11
NJM4565M
BUFFER AMP.
RP22
100
RP20
2.2K
RP19
2.2K
RP21
100
8
5
6
7
CP23
10/16
RP25
1K
CP24
10/16
RP26
1K
RP18
8.2K
RP17
8.2K
CP19
0.1(ML)
CP20
0.1(ML)
CP15
0.1
(ML)
CP16
0.1
(ML)
CP17 47P
CP18 47P
RP15
100K
RP16
100K
CP28
0.022
CP27
0.022
RP32
220
RP31
220
RR20
47K
CR16
4.7/50
QR12
KRA107 M
CP07
100P
CP08
100P
CP09
47/25
CP10
47/25
CP13
0.001
CP14
0.001
CR66
47/25
CR65
47/25
DR12 1SS133
DR11 1SS133
CR13
390P
CR14
390P
RR17
1.8K
RR18
RR18
1.8K
RR11
27K
RR12
27K
CR11
390P
CR12
390P
RR15
27K
RR16
27K
JR12
JR11
CR10 0.001
RR13
1.8K
RR14
1.8K
3
ICR11
GP1F38T
PHOTO DIGITAL
OUTPUT /LED
DIGITAL-OUT
1
2
CR02
100/10
CR01
0.022
ZDR01
MTZJ3.3B
RR01
100
LR01
2.2
µ
H
CR03
0.001
3
CNPR11
2
CNPR12
2 1
1
RP54
100K
CP44
0.001
CP58
0.068
RP53
100K
CP41
2.2/50
RP51
1K
QP15
2SC2878 A
RP7
5.6K
CP47
0.001
CP53
0.001
QP16
2SC2878 A
GND(A)
GND(A)
–
+
+
–
REAR MUTE
VIDEO-1
+B
+B
–B
AC3-C IN
AC3-SW IN
AC3-LS IN
AC3-RS IN
GND(A)
R-CH IN
L-CH IN
1
2
3
1
2
1
2
3
S.W.
MUTE
REAR MUTE
CENTER
MUTE
L-CH
R-CH
L-CH
R-CH
VIDEO-2
+B
–B
INPUT
VIDEO/AUX-2
INPUT
VIDEO/AUX-1
L-CH
R-CH
L-CH
R-CH
GND
+4.3V
DOUT
DOUT
GND
P30 6-H,P31 10-G,12-B
TO MAIN SECTION
P29 11-D
TO CD SERVO PWB
CNS99
P46 1-A
TO DOLBY PWB
CNSA11
RP52
1K
CP42
2.2/50
S.W.MUTE
CENTER MUTE
CP32
0.001
CP31
0.001
QP13
2SC2878 A
RP47 5.6K
CP37 0.001
CP38 0.001
RP48 5.6K
QP14
2SC2878 A
L-CH
(1/2)
(2/2)
3
55
18
54
57
56
76
58
32
31
30
85
18
81
84
18
80
– 35 –
CD-C491H
Figure 35 SCHEMATIC DIAGRAM (8/20)
7
8
9
10
11
12
CP57
22/25
RP73
22K
QP11
2SC2878 A
RP29
5.6K
CP25 0.001
CP26 0.001
RP30
5.6K
QP12
2SC2878 A
RP27
47K
RP28
47K
CP23
10/16
RP25
1K
CP24
10/16
RP26
1K
CP28
0.022
CP27
0.022
RP32
220
RP31
220
QP17
KRC107 M
SWITCHING
CP09
47/25
CP10
47/25
RP91 100
CP91
100/6.3
CFWP02
FWP02
CFWP01
FWP01
CNPP01
CNPP02
WTP02
7
3
CP44
0.001
CP58
0.068
QP15
2SC2878 A
RP70
5.6K
RP62
5.6K
CP47
0.001
CP53
0.001
QP16
2SC2878 A
S-MUTE
POWER
S-MUTE
–15V
GND(A)
+12V(A)
GND(D)
+4.6V(D)
RELAY4
RELAY3
+12V(M)
GND(M)
+7.3V(CD)
CD GND(D1)
CD GND(D2)
PROT
FAN CONT
RELAY1
SP LEVEL
H/P SW
POSISTOR
VOL SW
OUT3
H/P SW
VOL SW
RELAY2
OUT1(L-CH)
RELAY1
GND(A)
GND(A)
FAN CONT
OUT2(R-CH)
SP LEVEL
PROT
+5V(AC3-A)
GND(D3)
GND(D4)
CD GND(D1)
POWER
+5V(AC32A)
GND(D3)
+12V(M)
AMP
VF1
–VP
VF2
VF2
+4.6V(D)
GND(D)
+12V(A)
–15V
+5V(AC3-B)
RELAY4
RELAY3
OUT5
GND(A)
OUT4
OUT6
+B
1
13
OUT6
RELAY4
RELAY4
OUT4
GND(M)
+12V(M)
GND(A)
FAN SW
RELAY3
RELAY3
VOL SW
PROT
PROT
AMP
POSISTOR
1
16
VOL SW
FAN SW
+12V(M)
GND(M)
GND(A)
H/P SW
FAN CONT
RELAY1
OUT1(L-CH)
RELAY2
OUT3
OUT2(R-CH)
SP LEVEL
SP LEVEL
POSISTOR
PROT
AMP
+B
1
2
3
+B
GND(M)
+12V(M)
+12V(A)
GND(A)
–15V(A)
+4.6V(D)
GND(D)
+7.3V(CD)
CD GND(D2)
VGND
VOLTAGE
REGULATOR
QP91
2SD468 C
VF2
–VP
VF1
P40 1-B
TO DISPLAY PWB
FWD02
+B
+B
+B
VGND
+B
–B
+B
+B
–B
+B
FM SIGNAL
TO SPEAKER
AMP.2 PWB
P44 1-F
P44 1-B
P42 1-G
P42 5-G
P42 9-G
TO SPEAKER
AMP.1 PWB
CFWX11
CFWV11
TO POWER PWB
CNS901
TO POWER PWB
CNS902
TO POWER PWB
FW901
QP13
2SC2878 A
RP47 5.6K
CP37 0.001
CP38 0.001
RP48 5.6K
QP14
2SC2878 A
GND(A)
+B
1 2 3
13
12
11
10
9
8
7
6
5
4
3
1
16
7
6
5
8
9
4
3
3
1
10
11
12
13
14
15
2
3
5
11
10
4
1
1
2
3
4
4
1
2
2
3
WTP01
2
OUT5
2
POSISTOR
6
7
8
9
GND(D4)
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
RELAY2
29
27
19
18
28
33
MAIN PWB - A ( 3 / 5 )
CD-C491H
– 36 –
A
B
C
D
E
F
G
H
1
2
3
4
5
6
• NOTES ON SCHEMATIC DIAGRAM can be found on page 22.
Figure 36 SCHEMATIC DIAGRAM (9/20)
P31 8-C
TO MAIN SECTION
A
B
–
+
+
–
+
GND
(1/2)
(1/2)
(1/2)
(1/2)
(2/2)
(2/2)
(1/2)
(1/2)
(1/2)
(2/2)
(2/2)
(2/2)
LT IN
RT IN
GND
–7V
–7V
–7V
–7V
–7V
–7V
–7V
–7V
–7V
ICZ07
NJM4565M
ICZ05
NJM4565M
+7V
+7V
+7V
+7V
+7V
+7V
+7V
+7V
0X
1X
2X
3X
0Y
1Y
2Y
3Y
Y COM
X COM
INH
Vss
IN1
F5
IN2
F6
F7
F4
F5
F3
F2
VEE
F2
F1
F4
NC
IN1
IN2
F7
F6
CLK
DI
F3
VDD
VCC+7V
TEST2
VSS
TEST1
S
+B
+B
–B
+B
+B
–B
–B
+B
+B
+B
–B
+B
–B
–B
–B
–B
+B
+B
1
2
3
1
2
3
–B
TUN L
TAPE L
AUX1 L
AUX2 L
TUN R
TAPE R
AUX1 R
AUX2 R
1
5
2
4
7
8
9
6
3
13
1
1
8
2
3
2
3
1
2 3
5 6
7
5 5
6 6
7 7
RZ01
6.8K
8
2 3
2 3
2 3
5
5
5
6
6
6
7
7
7
8 8
4 4 4
8 8
4
4 4
ICZ08
TC4052BF
DUAL 4CH ANALOG
MULTIPLEXER
ICZ03
NJM4565M
ICZ02
NJM4565M
ICZ04
NJM4565M
ICZ06
NJM4565M
CZ30
100/10
CZ32
100/10
ICZ01
LC7522
GRAPHIC EQUALIZER ELECTRIC VOLUME
5
4
3
2
1
6
7
8
9
RZ66
100
RZ67
100
RZ68
100
RZ65
100
100
RZ02
6.8K
CZ27 100/10
CZ26 100/10
CZ01
1/50
CZ02
1/50
CZ04
10/16
CZ03
10/16
10/16
CZ34 10/16
CZ38 10/16
CZ36 47/16
CZ40
47/16
4
3
2
1
RZ60
2.7K
CZ46
10/16
RZ59
2.7K
8
5
6
7
CZ47
10/16
RZ55 100K
RZ57
1K
CZ43
10/16
RZ63
100K
RZ64
100K
RZ56 100K
RZ58
1K
CZ42
10/16
ICZ09
NJM4565M
BUFFER AMP.
QZ03
KRC107M
QZ04
KRC107M
RZ53 1K
RZ54
1K
CZ16(ML)
0.012
CZ12(ML)
0.0015
CZ08
270P
CZ15
0.012(ML)
CZ11
0.0015(ML)
CZ07
270P
CZ33
0.022
0.022
CZ31
0.022
CZ29
0.022
CZ45 47P
CZ44 47P
CZ35
0.022
CZ39
0.022
CZ37
0.022
CZ41
0.022
CZ10(ML)
0.027
CZ06
4700P
CZ09
0.027
CZ05
4700P
CZ28
0.022
CZ25
0.022
RZ40 330K
RZ42
680
RZ34 330K
RZ36 680
RZ28 270K
RZ30 680
RZ22 120K
RZ24 680
RZ16 120K
RZ14 1M
RZ18 680
RZ11 1M
RZ05 1M
RZ12 1M
RZ06 1M
RZ08 100K
RZ39 330K
RZ41 680
RZ33 330K
RZ35 680
RZ27 270K
RZ29 680
RZ21 120K
RZ23 680
RZ15 120K
RZ17
680
RZ07
100K
RZ43
1K
RZ09
100
100
RZ10
100
RZ45
1K
RZ47
1K
RZ49
1K
RZ51
1K
RZ46
1K
RZ48
1K
RZ50
1K
RZ52
1K
RZ62
10K
RZ61
10K
RZ93
1K
RZ94
1K
RZ87
470K
RZ88
470K
RZ8
470
RZ90 22K
RZ91 22K
RZ38 1M
RZ32 1M
RZ26 1M
RZ20 1M
RZ37
1M
RZ31 1M
RZ25 1M
RZ19 1M
RZ13 1M
CZ22
0.33/50
CZ21
0.33/50
RZ03
6.8K
CZ69
100P
RZ04
6.8K
CZ70
100P
CZ14(ML)
0.27
CZ18(ML)
0.18
CZ20(ML)
0.033
CZ24(ML)
0.039
CZ13
0.27(ML)
CZ17
0.18(ML)
CZ19
0.033(ML)
CZ23
0.039(ML)
RZ95
220
RZ44
1K
1K
CZ71
1/50
ZDZ03 MTZJ5R1A
(2/2)
(1/2)
–
+
+
–
+
–
+
–
+
–
+7V
+7V
–
14
13
10
11 12
15
16
19 18 17
20
21
22
23
+
–
+
–
+
–
+
–
+
–
1
1
1
16
12
14
15
11
10
78
15
84
85
82
17
80
81
F1
24
25
26
27
28
ICZ02, ICZ04, ICZ06:
BUFFERAMP.
ICZ03, ICZ05, ICZ07:
BUFFER AMP.
ICZ09
NJM4565M
BUFFER AMP.
Click on the first or last page to see other CD-C491H (serv.man4) service manuals if exist.