No. 51947
AV-32D503
AV-32D303
AV-32D203
32
MTS CIRCUIT ADJUSTMENT
Item
Measuring
instrument
Test point
Ad justment part
Description
MTS INPUT
LEVEL
check
Remote
control unit
A01 IN LEVEL
[SOUND(A) mode]
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
Remote
control unit
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. Confirm the initial setting value of the
A02 LOW SEP
.
5. Adjust the
A02 LOW SEP
s o that the stroke element of the
300Hz signal will bec ome minimum.
6. Change the connec tion 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
Ad justment item
Initial setting value
A01 IN LEVEL
10
Ad justment item
Initial setting value
A02 LOW SEP
32
A03 HIGH SEP
32
Содержание AV-32D203
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