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AV-20420
AV-20421
Measuring
Item
instrument
MTS
TV audio
SEPARATION
multiplex
signal
generator
Oscilloscope
Remote
control unit
L-Channel
signal waveform
1 cycle
Setting item
6. LOW SEP
7. HI SEP
1-26 (No.52111)
Test point
Adjustment part
L OUT
[SOUND]
R OUT
<6. LOW SEP>
[AUDIO OUT]
<7. HI SEP>
R-Channel
crosstalk portion
Minimum
Initial setting value
10
9
Description
(1) Input a stereo L signal (300Hz) from the TV audio
multiplex signal generator to the antenna terminal.
(2) Connect an oscilloscope to L OUT of the AUDIO
OUT, and display one cycle portion of the 300Hz
signal.
(3) Change the connection of the oscilloscope to R OUT
of the AUDIO OUT, and enlarge the voltage axis.
(4) Select the <6. LOW SEP> of the SOUND mode.
(5) Set the initial setting value of the <6. LOW SEP>.
(6) Adjust the <6. LOW SEP> so that the wave element
of the 300Hz signal will become minimum.
(7) Change the signal to 3kHz, and similarly adjust the
<7. HI SEP>.
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