Philips FM24 Service Manual page 71

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Electrical Diagrams and PWB Layouts
SCAVIO Panel: Audio Delay Line
1 2
AUDIO DELAY LINE
(BASIC & ENHANCED VERSION)
A
+5V
B
COUNTER
7870
+5D
TC74HC590AF
14
EN3 16
VCC
13
C2 8
GND
12
C
G1 CTR8
11 9
(CT=255)Z4 4
1+
10
+5D
CT=0
15
2D 3
1
2
3
D
4
5
6
7
COUNTER
E
7874
+5D
TC74HC590AF
14
EN3 16
VCC
13
C2 8
GND
12
G1 CTR8
11 9
(CT=255)Z4 4
1+
10
+5D
CT=0
F
15
2D 3
1
2
3
4 4871
5
6 4873
G
7
H
1 2
FM24
3 4 5
5870 F870
+5D
100MHZ
7880
CY7C199B
RAM
F872
1V / div DC
500ns / div
4872
3 4 5
7. 71
6 7 8
+5D
DFF
+5D
7881
74HCT573
2881
1 20
EN Vcc
11 10 100n
C1
GND
2 19
1D
3 18
4 17
5 16
6 15
7 14
8 13
9 12
+5D
F872
F871
7879
BC847BW
6 7 8
Digitized in Heiloo, Holland
9 10 11
DFF
+5D
7882
74HCT573
2882
1 20
EN Vcc
11 10 100n
C1
GND
2 19 4882
8ms
1D
3 18 4883
16ms
4 17 4884
24ms
DELAY 1 FOR MONITOR
5 16 4885
32ms
CONFIGURATION 24ms
6 15 4886
40ms
7 14 4887
48ms
8 13 4888
56ms
9 12 4889
64ms
F875
F874
4890
4891
4892 DELAY 2 FOR TV
4893
CONFIGURATION 40ms
4894
4895
4896
4897
9 10 11
31/8/2014
12 2870 C2
2874 F2
2879 H7
2880 B7
2881 E8
2882 E10
3879 H6
3880 G6
4871 G2
4872 G3
4873 G2
A
4874 G3
4875 G3
4876 G3
4882 E10
4883 E10
4884 F10
4885 F10
4886 F10
4887 F10
4888 F10
4889 F10
4890 G10
B
4891 G10
4892 G10
4893 G10
4894 G10
4895 G10
4896 G10
4897 H10
5870 A3
7870 B1
7874 E1
7879 G6
C
7880 B3
7881 E7
7882 E9
F870 A3
F871 G6
F872 G6
F873 H7
F874 G11
F875 F11
D
E
F
G
H
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