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Philips LX710/01 Service Manual page 35

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PT6311 INTERNAL BLOCK DIAGRAM
EM78P156ELP INTERNAL BLOCK DIAGRAM
6-2
OPTICAL FUNCTION
IC201 (PT6311)
PIN NO
1
2
3
4
5
6
7
8
Voltage
0
0
0
0
4.3
4.3
0
3.3
PIN NO 21
22
23
24
25
26
27
28
Voltage -23
-26
-21
-26
-26
-23
-23
-23
PIN NO 41
42
43
44
45
46
47
48
Voltage -23
-23
-23
-23
4.5
4.5
0
4.5
IC202 (PT6312)
PIN NO
1
2
3
4
5
6
7
8
Voltage 1.5
1.5
1.5
1.5
1.2
1.2
0
2
PIN NO 21
22
23
24
25
26
27
28
Voltage -26
-26
-26
-5.6
-26
-26
-26
-26
PIN NO 41
42
43
44
Voltage 4.3
4.3
0
2.5
IC203 (EM78P459AM)
PIN NO
1
2
3
4
5
6
7
8
Voltage
0
4.3
0
0
4.3
0
0
0
PIN NO 21
22
23
24
Voltage 4.5
1
1
4.5
IC204 (EM78P156ELP)
PIN NO
1
2
3
4
5
6
7
8
Voltage
5
5
0
5
0
5
5
0
TUNER FUNCTION
IC201 (PT6311)
PIN NO
1
2
3
4
5
6
7
8
Voltage
0
0
0
0
4.3
4.3
0
3.3
PIN NO 21
22
23
24
25
26
27
28
Voltage -23
-21
-14
-18
-14
-16
-26
-26
PIN NO 41
42
43
44
45
46
47
48
Voltage -24
-24
-24
-24
4.5
4.5
0
4.5
IC202 (PT6312)
PIN NO
1
2
3
4
5
6
7
8
Voltage 0.6
0.6
0.6
0.6
1.2
1.2
0
2
PIN NO 21
22
23
24
25
26
27
28
Voltage -24
-24
-24
-5.6
-26
-26
-26
-26
PIN NO 41
42
43
44
Voltage 4.3
4.3
0
2.5
IC203 (EM78P459AM)
PIN NO
1
2
3
4
5
6
7
8
Voltage
0
4.3
0
0
4.3
0
0
0
PIN NO 21
22
23
24
Voltage 4.5
1
1
4.5
IC204 (EM78P156ELP)
PIN NO
1
2
3
4
5
6
7
8
Voltage
5
5
0
5
0
5
5
0
6-2
9
10
11
12
13
14
15
16
17
2.8
0
0
0
0
4.5
-23
-26
-23
-23
29
30
31
32
33
34
35
36
37
-26
-26
-26
-26
0
-26
-23
-23
-23
-23
49
50
51
52
0
0
0
2.5
9
10
11
12
13
14
15
16
17
1
1.6
1.6
1.6
1.6
4.3
-25
-25
-25
-25
29
30
31
32
33
34
35
36
37
-26
-26
-23
-23
-23
-23
-23
-23
-23
4.3
9
10
11
12
13
14
15
16
17
0
0
0
0
4.4
0
0
2
4.5
4.5
9
10
11
12
13
14
15
16
17
4
0
5
0
0
5
2.3
2
4.3
9
10
11
12
13
14
15
16
17
18
2.8
0
0
0
0
4.5
-16
-14
-14
-25
29
30
31
32
33
34
35
36
37
38
-24
-19
-26
-23
0
-26
-24
-24
-24
-24
49
50
51
52
0
0
0
2.5
9
10
11
12
13
14
15
16
17
18
1
1.6
1.6
1.7
1.7
4.3
-24
-24
-24
-24
29
30
31
32
33
34
35
36
37
38
-26
-26
-23
-23
-23
-23
-23
-23
-23
4.3
9
10
11
12
13
14
15
16
17
18
0
0
0
0
4.3
0
1.3
2
4.5
4.5
9
10
11
12
13
14
15
16
17
18
4
0
5
0
0
5
2.3
2
4.3
0
18
19
20
-26
-23
38
39
40
-23
-23
18
19
20
-25
-25
38
39
40
4.3
4.3
18
19
20
4.5
4.5
18
0
19
20
-21
-26
39
40
-24
-24
19
20
-24
-24
39
40
4.3
4.3
19
20
4.5
4.5
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