Sharp MD-R3H Service Manual page 45

HEADPHONES PWB-B2
J651
C661
0.001
1 1
2 2
3 3 HEADPHONES
C662
0.001
CNP651
CNS651
C663
0.1
CNW655
R963
R945
10K
12K
R946
R947
6.8K
12K
B A
SW901
JOG
DER
4V
4V
02V
02V
02V
03V
01V
V
.09V +B
C980
0.1
1 2 3 4
CNS903
P41 7 - H
TO CD SERVO PWB
7
C925
C927
0.001
0.001
C926
C928
0.001
0.001
5V
5V
R901
10K
R931 R935
10K 10K
H OPEN
RA901 1K
RA902 1K
RA903 1K
RA904 1K
RA905 1K
RA906 1K
RA907 1K
RA908 1K
RA911 1K
RA912 1K
RA913 1K
RA914 1K
RA915 1K
RA919 1K
RA920 1K
RA921 1K
RA922 1K
RA923 1K
C911 RA924 1K
0.1
RA925 1K
RA926 1K
RA927 1K
R923
220K
IC902
0V
PST9127
3
RESET
2 1
5.07V
5.07V
C909
C908
1
0.1
R940
1K
C940
100P
(CH)
5 4 3 2 1
5 6 7 8 9 10 11 12
CNS902
CNP800 CNP503
P47 9 - H
TO MAIN PWB
8
Figure 45 SCHEMATIC DIAGRAM (6/10)
94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
+B
C901 C902
0.1 0.1
C903
0.1
+B
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81
1
KEY 1 5.03V
2
KEY 2 5.03V
3
KEY 3 5.03V
4
KEY 4 0V
5 INI/MUTE IN 5.05V
6
JOG AD 5.05V
7 MLAS 0V
8
MCK 0V
9 MLAD 0V
10
MSD 0V
11
JP1 0V
12 PU IN 0V
13
LOCK/DRD 0.1V
14 DAC MODE 5.05V
IC901
15
DAC CLK/EX SCK 0V
IX0220AW
16 DAC DATA/EXT DATA 5.05V
SYSTEM
17
EXT LCK 0V
MICROCOMPUTER
18
DFSO/DFS1 0V
19
(MD) DSTB 0.8V
20
(MD) DSCK 2.9V
21 (MD) K-DATA 4.1V
22
(MD) MD DATA 0V
23 D-OUT 0V
24
(MD) LO/EJ 5.01V
25
CH CMND 4.6V
26
CH DATA 0.1V
27
CH RDY 3.5V
28 CH CLK 4.8V
22
P-IN 1.8V
30 P-CNT 5.05
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
R906
1K
+B
R904
4.7M
X902
32.768kHz
C904
C905
68P
12P
(CH)
(CH)
R941
UN940
100
REMOCON
1
3
C941
10/16
2
9 10
– 45 –
75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54
FL901
20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41
-B
–31V
–27V
80
USEG08
–27V
79
USEG07
–29V
78
USEG06
–18V
77
USEG05
–23V
76
USEG04
–25V
75
USEG03
–25V
74
USEG02
–23V
73
USEG01
–14V
72
USEG00
–29V
71
USEG25
–25V
70
USEG26
–27V
69
USEG27
–18V
68
USEG28
–0.6V
67
USEG29
–16V
66
USEG30
–23V
65
USEG31
–25V
64
USEG32
–23V
63
USEG33
–23V
62
USEG34
–16V
61
USEG35
–25V
60
UDIG15
–29V
59
UDIG14
–29V
58
UDIG13
57 –29V
UDIG12
–29V
56
UDIG11
–29V
55
UDIG10
–29V
54
UDIG09
–29V
3
UDIG08
–29V
552
UDIG07
–29V
51
UDIG06
ANALOG RECORD SIGNAL
ANALOG PLAYBACK SIGNAL
X901
4.19MHz
MIC SIGNAL
11
MD-R3H
53 52 51 50 49 48
42 43 44 45 46 47
DISPLAY PWB-B1
12