Philips LC4.7E Service Manual page 24

Circuit Diagrams and PWB Layouts
Small Signal Board: Audio Delay line (Lip sync)
1 2
AUDIO DELAY LINE (LIP SYNC)
A
5580 1u0 F580
+5VSW
+5VD
+5VD
COUNTER
2580 100n
7580
M74HC590T
16
14
7582
VCC
EN3
CY62256LL-70ZC
+5VD
13
C2
2V3
B
12
28
G1 CTR8
2582 5V3
11 9 100n
(CT=255)Z4 4
1+
2V3
5V3
+5VD
10
CT=0 F590
5V3
15
2D 3
1
2V6
2 2V6
C
3
2V6
4 2V6
5
2V6
6 2V6
7
2V6
GND
8
+5VD
2581 100n
D
14 16
VCC
EN3
13 5V3
C2
12
G1 CTR8
5V3
11 9
(CT=255)Z4 4
1+
2V3
+5VD
10
CT=0
5V3
15
2V6
E
2D 3
1 2V6
2 2V6
3 2V6
4
4580 2V6
5 2V6
4581
6
4582 (1) 2V6
7
F
GND
8
7581
M74HC590T
COUNTER
3139 123 5837.1
1 2
LC4.7E AA 7.
3 4
14
(1) NOT USED
3 4
24
5 6 7
+5VD
DFF
2583
7583
74HC573PW 100n
5V3 20
1
EN
2V3 11
C1
2 2V6
1D
3
4
5
6
7
8
9
10
+5VD
3580
470R
7585
F585
2V3
BC847BW
F586
0V2
2585
2586 3581
82p 47K 82p
5 6 7
8 9
+5VD
DFF 2584
7584
74HC573PW 100n
5V3 20
1
EN
2V3 11
C1
19 2 19 4586 (1)
1D
18 3 18 4587 (1)
(1)
17 4 17 4588
(1)
16 5 16 4589
15 6 15 4590
(1)
14 7 14 4591
(1)
13 8 13 4592
F587
(1)
12 9 12 4593
(1) NOT USED 2V6
10
2587
330p
F588
2588
470p
F584
8 9
2580 B1
2581 D1
2582 B2
2583 B7
2584 B8
2585 F6
2586 F6
2587 D9
2588 D9
3580 F5
3581 F6
4580 F2
4581 F2
A
4582 F2
4583 F2
4584 F2
4585 F2
4586 C9
4587 C9
4588 C9
4589 C9
4590 C9
4591 C9
4592 C9
4593 D9
5580 A1
B
7580 B1
7581 F1
7582 B2
7583 C6
7584 C8
7585 F6
F580 A1
F584 F9
F585 F5
F586 F6
F587 D9
F588 D9
F590 B2
C
I2SDI1
A2
D
I2SDO1
A2
E
F
I2SCLK
A2
E_14710_018.eps
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