Philips 32PF9968/10 Service Manual page 27

Circuit Diagrams and PWB Layouts
SSB: Audio Delay Line (PDP Only)
1 2
AUDIO DELAY LINE (LIPSYNC)
B4
A
F501
5501 1u0
+5VSWI +5VD
+5VD
B
COUNTER
2501 100n
7501
M74HC590T
16
14
VCC
EN3
+5VD
13
C2
2V3
12
G1 CTR8
2502
11 9 100n
1+ (CT=255)Z4 4
2V3
C 5V3
+5VD
10
CT=0 F502
5V3
15
2D 3
1 2V6
2 2V6
3
2V6
4
2V6
5 2V6
D
6 2V6
7
2V6
GND
8
+5VD
2503 100n
14 16
VCC
EN3
13
5V3
C2
E
12
G1 CTR8
5V3
11 9
1+ (CT=255)Z4 4
2V3
+5VD
10
CT=0
5V3
15 2V6
2D 3
1 2V6
2
2V6
F
3
2V6
I503
4 2V6
4501
I504
5 2V6
4502
I505
6
4503 * 2V6
7
GND
8 LCD PDP
*
7503
4503 N Y
M74HC590T
4504 Y N
COUNTER
G
3139 123 6145.4 *
For LATAM diversity see table in chapter 10
1 2
LC4.8L LA
3 4
7502
CY62256LL-70ZC
28
5V3
*
3 4
7. 27
5 6 7
14
LATCH
7505
74HC573PW
1
2V3 11
2 2V6
3
4
5
6
7
8
9
+5VD
3501
470R
7504
I501
2V3
BC847BW
I502
0V2
2509
2508 3502
82p 47K 82p
5 6 7
8 9
+5VD +5VD
LATCH
2504 2505
7506
100n 74HC573PW 100n
5V3 20 5V3 20
1
EN EN
2V3 11
C1 C1
19 2 19 4507
1D 1D
18 3 18 4508
17 4 17 4509
16 5 16 4510
15 6 15 4511
14 7 14 4512
13 8 13 4513
12 9 12 4514
10
10
8 9
10
2501 B2
2502 C2
B4
2503 E2
2504 C8
2505 C9
2506 D10
2507 E10
A
2508 G6
2509 G7
3501 F6
3502 G7
4501 F2
4502 F2
4503 F2
4504 G3
4505 G3
4506 G3
4507 D9
B 4508 D9
4509 D9
4510 D9
4511 D9
4512 D9
4513 D9
4514 D9
5501 B1
7501 B1
7502 B3
7503 G1
7504 G6
C
7505 C7
7506 C8
F501 B2
F502 C2
F503 D10
F504 E10
F505 G10
I501 G6
RES
I502 G6
RES
I503 F2
RES
I504 F2
RES
I505 F2
RES
D
RES
RES
F503
I2SDI1
2V6
2506
330p
F504
I2SDO1
2507
470p
E
F
G
F505
I2SCLK
H_16980_004.eps
230207
10