DOWNLOAD Sharp HT-SB250 (serv.man2) Service Manual ↓ Size: 5.82 MB | Pages: 54 in PDF or view online for FREE

Model
HT-SB250 (serv.man2)
Pages
54
Size
5.82 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / Home Theatre
File
ht-sb250-sm2.pdf
Date
PREV: Sharp HT-SB250 User Manual / Operation Manual

Sharp HT-SB250 (serv.man2) Service Manual ▷ View online

HT-SB250
4 – 2
  
+B2
+B5
T
C
1
Q604
     ~
  ~
+B2
     ~
L
1
B
+
R
L
FRONT = 12Ω
R
SUBWOOFER = 3Ω
+B4
+B4
IC701
PT6965
LED701
SEVEN SEGMENT
2
5
REMOTE
SENSOR
1
3
9
15
1
3
6
16
4
5
28
29
24
30
26
27
8
23
IC901
STA333BW
POWER IC
IC902
STA533W
23
31
32
33
34
28
30
27
1
4
5
8
~
13
10
9
6
17
18
~
19
25
7
4
12
15
1
5
6
13
14
19
26
32
29
2
3
8
9
10
11
16
17
~
~
1
3
7
12
16
22
35
26
8
11
VDD
~
~
VCC
SDA
SCL
VCC
Figure 4-2: BLOCK DIAGRAM (2/2)
HT-SB250
5 – 1
CHAPTER 5. CIRCUIT DESCRIPTION
[1] Voltage
IC601
IC602
PIN
NO
VOLTAGE
(V)
PIN
NO
VOLTAGE
(V)
PIN
NO
VOLTAGE
(V)
PIN
NO
VOLTAGE
(V)
PIN
NO
VOLTAGE
(V)
PIN
NO
VOLTAGE
(V)
PIN
NO
VOLTAGE
(V)
PIN
NO
VOLTAGE
(V)
PIN
NO
VOLTAGE
(V)
PIN
NO
VOLTAGE
(V)
PIN
NO
VOLTAGE
(V)
1
2.45
15
2.45
1
3.28
17
1.63
2
1.64
16
4.91
2
3.27
18
1.64
3
1.62
17
0.00
3
3.13
19
0.90
4
0.81
18
2.45
4
3.28
20
0.00
5
1.64
19
2.45
5
0.00
21
0.00
6
0.00
20
2.45
6
3.13
22
1.62
7
3.28
21
2.45
7
3.28
23
0.00
8
0.00
22
2.43
8
3.28
24
0.00
9
0.00
23
2.43
9
0.00
25
3.28
10
1.52
24
2.44
10
1.55
26
1.65
11
1.50
25
2.44
11
1.54
27
3.12
12
0.00
26
2.43
12
0.00
28
0.00
13
2.43
27
2.43
13
0.00
29
0.00
14
0.00
28
2.45
14
0.80
30
0.00
15
1.64
31
0.00
16
1.64
32
0.00
IC701
IC604
1
2.45
16
2.45
2
1.64
17
4.91
3
1.62
18
0.00
1
0.00
27
3.12
4
0.81
19
2.45
2
3.13
28
3.12
5
1.64
20
2.45
3
0.00
29
3.07
6
0.00
21
2.45
4
3.27
30
1.93
7
3.28
22
2.45
5
3.13
31
0.00
8
0.00
23
2.43
6
1.43
32
0.00
9
0.00
24
2.43
7
1.07
33
0.00
10
1.52
25
2.44
8
3.10
34
0.00
11
1.50
26
2.44
9
1.43
35
3.13
12
0.00
27
2.43
10
0.00
36
3.06
13
2.43
28
2.43
11
1.56
37
0.00
14
0.00
29
2.45
12
3.13
38
0.00
15
0.00
30
0.00
13
0.00
39
0.00
14
2.25
40
0.00
15
0.00
41
0.00
IC801
IC802
16
0.00
42
3.07
17
1.88
43
3.28
18
1.43
44
3.08
1
3.05
1
0.00
19
3.28
45
0.00
2
11.75
2
3.28
20
3.10
46
3.13
3
0.00
3
4.94
21
2.96
47
3.13
4
4.94
22
0.00
48
3.27
5
0.00
23
0.00
49
0.00
IC803
24
0.00
50
0.00
25
0.00
51
0.00
26
0.00
52
0.00
1
11.41
2
11.66
3
3.84
4
2.41
5
0.54
6
0.54
7
0.54
8
0.54
HT-SB250
5 – 2
IC901
IC902
PIN
NO
VOLTAGE
(V)
PIN
NO
VOLTAGE
(V)
PIN
NO
VOLTAGE
(V)
PIN
NO
VOLTAGE
(V)
1
0.00
19
3.26
1
0.00
19
0.00
2
0.00
20
3.22
2
0.54
20
0.00
3
0.00
21
3.26
3
0.54
21
4.83
4
8.54
22
0.00
4
11.76
22
4.83
5
11.74
23
3.29
5
0.00
23
3.29
6
0.55
24
3.29
6
0.00
24
4.84
7
0.00
25
0.00
7
11.76
25
3.27
8
11.76
26
0.00
8
0.54
26
3.26
9
0.55
27
1.49
9
0.54
27
3.13
10
0.55
28
1.63
10
0.54
28
0.15
11
11.76
29
1.65
11
0.54
29
0.15
12
0.00
30
0.87
12
11.76
30
0.15
13
0.55
31
3.15
13
0.00
31
0.15
14
0.00
32
3.28
14
0.00
32
0.15
15
3.34
33
3.28
15
11.76
33
6.69
16
0.00
34
3.13
16
0.54
34
6.69
17
0.15
35
0.00
17
0.54
35
11.76
18
0.15
36
3.28
18
0.00
36
11.76
HT-SB250
5 – 3
-MEMO-
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