Analog Board: Digital In/Out (Digio); (Diagram 8) - Philips DVDR880/001 Service Manual

Circuit Diagrams and PWB Layouts

Analog Board: Digital In/Out (DIGIO)

1951 A4 2585 C3 2590 A3 3582 D2 5580 B2
2580 A3 2586 D3 3580 A3 3584 C1 5581 A1
2581 A1 2587 E2 3581 C2 3585 D3 6580 C4
1 2
A
5581
3
5VDD
10u
2
GND
1
GND
B
7580-A
PC74HCU04D
3584 I488
C
1 2
A
DAOUT Y
470R
from DAC_ADC
3581
2K2
I490
5VDD
D
I491
GND
E
1 2
DVDR880-890 /0X1 7.
7580-A C2 7580-D D3 F4102 A4 I488 C2
7580-B C3 7580-E D3 F4103 A4 I489 C3
7580-C C3 7580-F D3 I487 A3 I490 C1
3 4
1951
YKC21-3416
F4103
3
DIGITAL
2590 I487
3580 F4102
4 2
75R
150p
1
6
GND
6RG
5580
Ground not connected
to the rear plane
GND
I493
7580-B
PC74HCU04D
I489 2585
3 4
A
Y
100n
7580-C
PC74HCU04D
5 6
A
Y
GND
7580-E
PC74HCU04D
I492
3585
11 10
A
Y
560R
7580-F
PC74HCU04D
13 12
A
Y
GND
7580-D
PC74HCU04D
14
9 Vcc 8
A Y
Vss
7
GND
TR 01042_001
3 4
EN 107
I491 D2
I492 D3
I493 B4
A
OUT
B
C
D
E
150502