Sharp XL-UH250 Service Manual - Page 84
Sharp XL-UH250 Manual
 |
View all Sharp XL-UH250 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 84 highlights
XL-UH250 (6) USB system check. Press USB funnction, insert the USB memory device into the USB. 1. Does the device information can display? Yes 2. The waveform and the time is displayed normal, but no sound is produced. No Check around pin 79 and 80 or 1, 87, 88 and 89 on IC3. (Figure 8 & 9) No Check around pin 71, 92 and 93 on IC3. (Figure 10) pin 65~67 on IC1. (Figure 7) 16 D - IC3 80 17 79 D + IC3 Figure 8 12 IC3 88 RXD1 13 87 IC3 14 89 IC3 15 1 IC1 TXD1 USB_REQ RESET Figure 9 18 71 IC3 19 92 IC3 20 93 IC3 AIN BCKI LRCKI Figure 10 7 - 5
-
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
-
38
-
39
-
40
-
41
-
42
-
43
-
44
-
45
-
46
-
47
-
48
-
49
-
50
-
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
-
100
-
101
-
102
-
103
-
104
-
105
-
106
-
107
-
108
-
109
-
110
-
111
-
112
-
113
-
114
-
115
-
116
 |
 |
XL-UH250
7 – 5
(6) USB system check.
Press USB funnction, insert the USB memory device into the
USB.
1. Does the device information can display?
No
Check around pin 79 and 80 or 1, 87, 88 and 89 on IC3.
(Figure 8 & 9)
2. The waveform and the time is displayed normal, but no
sound is produced.
No
Check around pin 71, 92 and 93 on IC3. (Figure 10)
pin 65~67 on IC1. (Figure 7)
Figure 8
Figure 10
IC3
IC3
D +
D -
80
79
17
16
IC3
IC3
IC3
71
92
93
18
19
20
AIN
BCKI
LRCKI
Figure 9
IC3
IC3
IC3
IC1
TXD1
USB_REQ
RESET
88
87
89
1
RXD1
12
14
15
13
Yes