Sharp MD-X7H Service Manual page 79

P40 10-H
29 30 31
Q541, Q542 :
CD MUTE
1
0V
C512
47/16
R502
2.2K
R504
C515
2.2/50 18K
C516
2.2/50
C518
1/50
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
C520
.25/50
1
RF1C1
2 RF1C2
3
RF1C3
4
RF2C1
0
5 RF2C2
6
RF2C3
IC501
7 RF3C1
LC75396E
8
RF3C2
AUDIO PROCESSOR
9 RF3C3
L)
10 RF4C1
11 RF4C2
RF4C3
12
4
13 RF5
22
RFCOM
16
RTOUT
14
15 RFIN
8
16
C540
10/16
17 18 19 20 21 22 23 24 25
C552
33/6.3
7
K
9
C493
10/16
0
8
C494
10/16
7
32 33 34
R427
100K
R428
100K
R433 C435
47K
2.2/50
R408
100K
C511
47/16
R407
100K
R501
2.2K
R503
18K
C517
1/50
48
C519
LF1C1
47
0.22/50
LTIN
LF1C2
48 46
C521
LF1C3 45
0.1/50
C523
LF2C1
44
0.22/50
LF2C2
43
C525
LF2C3 0.15/50
42
C527
LF3C1
41
0.22/50
LF3C2 40
C529
LF3C3
39 0.027(ML)
C531
LF4C1
38
0.015(ML)
LF4C2
37
C533
LF4C3
36
0.0022(ML)
LFIN
33
LFS 35
C535
LTOUT 0.0047
34
(ML)
33
C537
1/50
26 27 28 29 30 31 32
C539
10/16
C543
1/50
–B
8
Figure 43 SCHEMATIC DIAGRAM (6/20)
L421
R429
2.2µH
2.2K 0V
0.7V
R419
Q423
0V
5.6K
KTC3199 GR
0V
0.7V
R420
Q424
5.6K
KTC3199 GR
0V
R430
Q421
2.2K
KRA107 M
3.4V
3.7V
0V
C407
10/50
C408
10/50
R413
33K
R411
22K
R410
47K
INPUT
R409
47K
SELECTOR
BU4052BC
IC511
R441
1K
Y0 X2
1 15
Y2 X1
2
14
R442
Y X
1K
3
13
Y3 X0
4
12
Y1 X3
5
11
INH A
6
10
B
9
7 8
16
+B
–B
C403 R403
C404 R404
0.022 0.022 47K 47K
C402
47/25
R402
ZD402
560
UZ7.5BSB
(1/2W)
+B
+B
9 10
– 43 –
D421
1SS133
D422
1SS133
R431
L421 2.2µH
1K
C429
330P
L423
2.2µH
C430
TP39
GND
330P
L422
2.2µH
R432
1K
C409
0.022
MIC_L-CH
EX_MD-R
EX_MD-L
AUX_IN-R
AUX_IN-L
MIC_GND
AUX_VOL-R
AUX_VOL-L
R414
R415
33K
2.7K
C411 C412 R416
680P 680P 2.7K
C410
R412
0.022
22K
R417 R418
47K
47K
R437 R435
IC440
33K 390K
INPUT
SELECTOR
C437
C439
NJM4558D
8200P
2200P
C445
2.2
6
C441 R447
7
150P 1K
5
R448
C446
1K
2.2
3
C442
1
150P
2
C440 C438
8 4
2200P 8200P
R438
R436
33K
390K
R440
3.9K
C444
22/50
IC451
PIN
NO. VOLTAGE
1
10.4V
2
5.2V
3
5.2V
4
5.2V
5
5.2V
6
5.2V
7
5.2V
8
5.1V
9
5.2V
IC511
10
5.2V
PIN
11
5.2V
NO. VOLTAGE
12
5.2V
1
0V
13
5.2V
2
0V
14
5.2V
3
0V 15
0V
4
0V
16
5.2V
5
0V
17
5.2V
6
0V
18
5.2V
7
–7.3V
19
5.2V
8
0V
20
5.2V
9
7.3V
21
5.2V
10
7.3V
22
5.2V
11
0V
23
5.2V
12
0V 24
5.2V
13
0V
25
5.2V
14
0V
26
0V
15
0V
27
5.2V
16
7.3V
28
5.2V
11
MD-X8H
L-CH
OUT
AUX OUT
R-CH
L-CH
AUX2 IN
R-CH
JK501
ANALOG
IN/OUT
TP29
15
TP28
16
TP34
17
TP27
18
P40
TP26
19
2-H
TP25
20
TP24
21
TP23
22
L-CH
R-CH
IC501
JK502
PIN
PHONO
NO. VOLTAGE
INPUT
1
4.5V
2
4.8V
3
4.6V
4
4.8V
5
4.8V
6
4.6V
7
4.5V
8
4.8V
9
4.6V
10
4.5V
11
4.8V
12
4.6V
13
4.5V
14
4.8V
15
4.7V
16
4.7V
17 4.8V
18
4.7V
19
4.7V
20
4.8V
21
4.8V
22
4.8V
23
0V
24
0V
25
0V
26
0V
27
4.8V
28
4.8V
29
4.7V
30
4.7V
31
4.8V
32
4.7V
33
4.7V
34
4.8V
35 4.5V
36
4.6V
37
4.8V
38
4.5V
39
4.7V
40
4.8V
41
4.5V
42
4.6V
43
4.7V
44 4.8V
45
4.6V
46
4.8V
47
4.7V
48
4.7V
49
4.8V
50
4.8V
51
4.7V
52
4.7V
53 4.7V
54 4.7V
55
4.7V
56
9.6V
57
4.7V
58
4.7V
59
4.7V
60
4.7V
61
4.7V
62 4.7V
63
4.8V
64
4.7V
12