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AV-36D503
AV-36D303
AV-36D203
MTS CIRCUIT ADJUSTMENT
Measuring
Item
instrument
MTS INPUT
Remote
LEVEL
control unit
check
MTS
TV audio
SEPARATION
multiplex
adjustment
signal
gener ator
Oscilloscope
Remote
control unit
L-Channel
signal waveform
1 cycle
32
Test point
Ad justment part
A01 IN LEVEL
[SOUND(A) mode]
R OUT
A02 LOW SEP
L OUT
A03 HI SEP
[AUDIO OUT]
R-Channel
crosstalk portion
Minimum
No. 51948
Description
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.
Ad justment item
A01 IN LEVEL
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.
Ad justment item
A02 LOW SEP
A03 HIGH SEP
Initial setting value
10
Initial setting value
32
32
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