No. 51940
AV-27D303
AV-27D203
27
ADJUSTMENT OF MTS CIRCUIT
Item
Measuring
instrument
Test point
Ad justment part
Description
MTS INPUT
LEVEL
check
A01 IN LEVEL
1. Select
the
A01 IN LEVEL
of the SOUND MODE.
2. Verify that
the
A01 IN LEVEL
is set at its initial s etting value.
MTS
SEPARATION
adjustment
TV audio
multiplex
signal
generator
Oscilloscope
R OUT
L OUT
[AUDIO OUT]
A02 LOW SEP.
A03 HI SEP.
1. Input the stereo L s ignal (300Hz) from the TV audio multiplex
signal generator to the antenna terminal.
2. Connect an oscilloscope to R OUT pin of the AUDIO OUT, and
display one c ycle portion of the 300Hz signal.
3. Select
the
A02 LOW SEP.
of the SOUND MODE.
4. Set the initial setting value of the
A02 LOW SEP.
with the
MENU / (VOL-/+) key.
5. Adjust the
A02 LOW SEP.
so that the strok e element of the
300Hz signal will bec ome minimum.
6. Change the connection of the oscilloscope to L OUT pin of the
AUDIO OUT , and enlarge the voltage axis.
7. Change the signal to 3kHz, and similarly adjust the
A03 HI
SEP.
L-Channel
signal waveform
R-Channel
crosstalk portion
Minimum
1 cycle
No
Setting item
Variable
range
Initial setting
value
A02
LOW SEP.
0
～
63
039
A03
HI SEP.
0
～
63
016
No
Setting item
Variable
range
Initial setting
value
A01
IN LEVEL
0
～
15
012
Summary of Contents for AV-27D203/R
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