SL5067
VIDEO
I/P
+5V
75R
10nF
75R
2K
100nF
3
18
470nF
RV3
120pF
5u6H
2K
AM MOD INDEX
17
16
15
14
1p2
8
13
12
11
100pF
100nF
NC
10K
NC
BB405
10nF
100pF
22K
1 TURN
AUDIO
I/P
5p6
22K
220K
220pF
1p5
PRE–EMPHASIS
AM
9
NC
NC
1p5
10
FM
2N3904
1nF
75R
470nF
5
6
10nF
7
10nF
1p2
RV1
MOD
INDEX
339nF
4
100pF
10nF
2
2K
19
RV2
1
20
PC/SC RATIO
75R
100nF
100pF
MODULATED
O/P
+30V
22K
+5V
47nF
220nF
22K
1
18
4MHz
18pF
2
17
S
L
5
0
6
7
FM–AM SOUND
SELECT
3
16
SDA
4
15
SCL
5
14
NC
6
S
P
5
5
1
0
13
NC
7
12
NC
8
11
NC
9
10
NOTE
+5V
10nF
2 TURNS
BOTH INDUCTORS ARE 6mm DIA
NOTES:
RV1 adjusts the modulation index
RV2 adjusts the picture carrier to sound carrier ratio
RV3 adjusts the AM modulation path
In applications the potentiometers should be replaced by 1%
fixed resistors connected between Vcc and Gnd.
The values chosen must reproduce the correct bias voltages
on the relevent input pins.
For AM sound applications the pre–emphasis cpmponents are
bypassed, the I/P being connected to pin 17 via 470nF.
For FM sound applications the pre=emphasis components are
switched in and RV3 is switched out.
Fig. 16 Video modular test board circuit diagram
GEC [ GENERAL ELECTRIC COMPANY ]
