A06 Low Sep 0~63 - JVC AV-32430/M Service Manual

AV-32430
AV-32432
Measuring
Item
instrument
MTS TV audio
SEPARATION multiplex
signal
generator
Oscilloscope
Remote
control unit
L-Channel
signal waveform
1 cycle
No. Setting item
A06 LOW SEP
A07 HI SEP
1-24 (No.52104)
Test point Adjustment part
R OUT [3.SOUND(A)]
L OUT A06 : LOW SEP
[AUDIO OUT] A07 : HI SEP
R-Channel
crosstalk portion
Minimum
Variable Initial setting
range value
0~63 008
0~63 026
Description
(1) Input the stereo L signal (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 cycle portion of the 300Hz
signal.
(3) Select 3.SOUND(A).
(4) Select the <A06> (LOW SEP).
(5) Set the initial setting value of the <A06> with the
[VOLUME (-/+)] key.
(6) Adjust the <A06> so that the stroke element of the
300Hz signal will become minimum.
(7) Change the connection of the oscilloscope to L OUT
pin of the AUDIO OUT, and enlarge the voltage axis.
(8) Change the signal to 3kHz, and similarly adjust the
<A07> (HI SEP).