Table of Contents
Advertisement
PIONEEFI
MEASUREMENT OF PHASE SHIFT ANGLE
Phase
shift of
an
amplifier
can be checked
by
using
the
output
and
input
signals
of
an
amplifier
for
a
Lissajous
pattem.
1.
Connect a preamplifier
or
stereo
amplifier to the
SD-1100
as
shown
in Fig.
22.
2. Supply
the input
signal
to
the INPUTS 3
and adjust
for
horizontal pattern
as
shown
in
(a)
of
Fig.
21.
3.
Supply the
signal
to INPUTS
1
and
obtain
a
vertical pattern
in the
same
manner
as
in
step 2 above.
4.
Display a
Lissajous
pattern on the
screen
by
setting the
following
switches as specified below.
WAVEFORM & DISPLAY SELECTOR SWITCH. . . . .
.
1
DISPLAY
SWITCH
.
..
3
FUNCTION
SWITCH
..
..
DISPLAY 2
CH.
5.
The
screen
will
show
a
Lissajous
pattern
as
in (c) of Fig.21.
6.
Phase
angle
0
can be
obtained
as
follows:
Sin
0 =
B/A
Where
A:
Length
of
the horizontal pattern
obtained
in
2
above
B: Distance between
two
points
at
which
the
Lissajous
pattern
crosses
the horizontal
axis.
(b)
+++$*
Fis.2l
45"
90"
I
35"
l AO"
(")
sD-1 100
STEREO
PREAMPLIFIER
r-t
(@)l
l\ry1
r@g
]ffi]
,
"..:..91
lL\___l
lL\_Jl
{;;1.-
;*ff;
ls@l-@=o--i
_@"_@:
PRE,OUTPUT
REC
AUXTPHONO
--r [--E--]
Ol
/-.+-\l
r0
[w]
Hffi
lo:@=f@-=@-'";
STEREO
AMPLIFIER
OR
RECEIVER
Fig.22
DUMMY LOAD
(8O)
t6
Advertisement
Table of Contents
