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1. TV standard:
a) after switching settings mode,indicator displays current TV standard (see tables 1-10);
b) to set necessary TV standard, press button "+" (see tables 1-10);
c) after TV stanard changing, modulator sets to rst channel of selected TV standard (see
tables 1-10),other settings remains unchanged.
2. Switch on test pattern generator:
a) press "-" button;
b) switching between OFF and ON by pressing button "+", "n0" - test pattern generator
OFF,"ES "-test pattern generator OFF. "ts"-test pattern generator ON.
3. Fine tuning of video carrier frequency:
a) press button "-";
b) shift video carrier frequency by pressing button "+" (see table 11).
4. Picture/sound ratio switching:
a) press button "-";
b) switching between 12dB and 16 dB by pressing button "+".
5. Output signal switching:
a)press button "-"
b)switching between RF ON and RF OFF by pressing button "+"( "on"-RF ON, "OF"-RF OFF).
PROTECTION FROM UNAUTHORIZED ACCESS
To prevent unauthorized access buttons "-" and "+" simultaneously twice for 3 sec. To revert
to normal to operation, repeat above procedure.
OUTPUT SIGNAL LEVEL ADJUSTMENT
Use a regulator ( gure 1,position 5) to adjust an output level.Output level adjustment range is
0-15dB.
TECHNICAL CHARACTERISTICS
Type
Video Input
frequency Range
level/impedance
30
MV7127
20Hz-6MHz
1V ±1dB/75
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