Small Signal Board: Audio Delay Line (Lipsync) - Philips LC4.6U Service Manual

26 LC4.6U
Circuit Diagrams and PWB Layouts
PAINEL DE PEQUENOS SINAIS: LINHA DE ATRASO ÁUDIO (LIPSYNC)

Small Signal Board: Audio Delay line (Lipsync)

1
AUDIO DELAY LINE (LIPSYNC)
F580
5580 1u0
+5VSW
+5VD
+5VD
COUNTER
2580 100n
7580
A
M74HC590T
16
14
VCC
EN3
+5VD
13
C2
2V3
12
G1 CTR8
2582
11 9 100n
1+ (CT=255)Z4 4
2V3
5V3
+5VD
10
CT=0 F590
5V3
15
2D 3
1
2V6
B
2 2V6
3 2V6
4
2V6
5 2V6
6
2V6
7
2V6
GND
8
C
+5VD
2581 100n
14 16
VCC
EN3
13
5V3
C2
12
G1 CTR8
5V3
11 9
(CT=255)Z4 4
1+
2V3
+5VD
10
D
CT=0
5V3
15
2D 3
1
2
3
4
4580
5
4581
6 (1)
4582
E
7
GND
8
7581
M74HC590T
COUNTER
3139 123 5867.2
1
LC4.6U
2 3 4
7582
CY62256LL-70ZC
28
5V3
2V6
2V6
2V6
2V6
2V6
2V6
2V6
(1) NOT USED
2 3 4
7. 26
5 6
14
DFF
7583
74HC573PW
1
2V3 11
2V6
2
3
4
5
6
7
8
9
+5VD
3580
470R
7585
F585
2V3
BC847BW
F586
0V2
2585
2586 3581
82p 47K 82p
5 6
7 8
+5VD +5VD
DFF
2583 2584
7584
100n 74HC573PW 100n
5V3 20 5V3 20
1
EN EN
2V3 11
C1 C1
19 2 19 4586
1D 1D
18 3 18 4587
17 4 17 4588
16 5 16 4589
15 6 15 4590
14 7 14 4591
13 8 13 4592
12 9 12 4593
(1) NOT USED
10 10
7 8
9
2580 A1
2581 C1
2582 A2
2583 B7
2584 B8
2585 E6
2586 E6
2587 C9
2588 C9
3580 E5
3581 E6
4580 E2
4581 E2
4582 E2
4583 E2
4584 E2
A
4585 E2
4586 B9
4587 B9
4588 B9
4589 B9
4590 C9
4591 C9
4592 C9
4593 C9
5580 A1
7580 A1
7581 E1
7582 A2
7583 B6
7584 B8
7585 E5
B
F580 A1
F584 E9
F585 E5
F586 E6
(1)
F587 C9
(1)
F588 C9
(1)
(1) F590 B2
(1)
(1)
I2SDI1
F587
A2
(1)
2V6
2587
330p
C
F588 I2SDO1
A2
2588
470p
D
E
I2SCLK
F584
A2
E_14710_066.eps
050804
9