No. 52007
AV-56WP30
49
Item
Measuring
Instrument
Test point
Ad justment Item
Description
MTS
SEPARATION
adjustment
TV audio
multiplex
signal
generator
Oscilloscope
Remote
control unit
AUDIO OUT
L output
R output
A07 : LOW SEP.
A08 : HI SEP.
1. Input the stereo L signal (300Hz) from the TV audio
multiplex s ignal generator to the antenna terminal.
2. Connect an oscilloscope to L OUTPUT pin of the
AUDIO OUT, and display one cycle portion of the
300Hz signal.
3. Change the c onnection of the osc illosc ope to R
OUTPUT pin of the AUDIO OUT, and enlarge the
voltage axis.
4. Select the A07
<
LOW SEP.
>
with FUNCTION (
▲
/
▼
)key.
5. Set the initial setting value of the A07
<
LOW SEP.
>
with the FUNCTION ( / ) key.
6. Adjust the A07
<
LOW SEP.
>
so that the stroke
element of the 300Hz signal will bec ome minimum.
7. Change the signal to 3kHz, and similarly adjust the A08
<
HI SEP.
>
.
L-Channel
signal waveform
R-Channel
crosstalk portion
Minimum
1 cycle
Содержание AV-56WP30
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