Read Sharp CD-C491H (serv.man3) Service Manual 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
Click on the first or last page to see other CD-C491H (serv.man3) service manuals if exist.