Motorola R-2002A Manual page 214

II'TENSITY
BALANCE
DAS[ CAL
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'1., -.---
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I ii.~l::
---
M llUIM 11"m
. , GAIN GEOMETRY
. VERTICAL
POSlTION
36930-110
Figure 3·1. Scope Amplifier Hoard (A.:!)- ..
1lignment
PointH
~ICI\l
CENTERING AND TRACE
1"\V!AIION
1.
St~IN'
r;.,n '·
1 ·
:1
1\Hr dil'iplay. Adjw:;t the
Intensity
Ct.>l\1 ~,.,
"1for1uhlt< vit-wing hrighLnt':i:!.
·.• Witl
,.~
f-'<•int
ShorLin~
.Jumper, connect
TPI .. 1: h?
:-icope
Amplifier hoard (l"igure ;J-1) to
chn;;;.:i>~
ground.
i.
Adju..;l the Trace Hutatiou potentiometer
(1-'i~ure
~
: · : ::· •=•ake the
hori~ontal
trace ou the CRT per-
p~.l~!it~ular
tc
1
h~! gr .::j,'ulc center line.
1. :\dJJ€-t the Vrrtical p ..
;:atkm
pr•tcntiomNct· (figun!
'. ,., :'>o that
th~ h~'!'7!•:-.t~l
1
T
1;;('
1111
rhc
CRT pa.ss('s
1
t· •·n•Jgh tht:
~o:rati(·c . ·
i
puint..
.•
~r.
the Trace P.· .
•l;
pmcntiomet.et
tFi~ure
l<• align the lwri.:c.:;tal
l.riit~e
on
lh~
CRT
Lehtnd the hori:t.rmt;il
~,;:r·,.,
;q1k lim.!,
6. Hunovt> • he
jumper
fwm TPI.
Sele<:t Gen/Mon Mtr displa:v'. Adjust the fnten;.;ily
control for
aeomfn
1
'·'··
··it:>wmg
brightness.
2. With
the
Test-Poim ·!.d'ting .Jumper,
eonned.
TP6 oft he Scope Ani pHricr board (l'igurtl :i-1 I t.o
~~hu~:-oi:;
gCIJund.
:j. Adjust. the Horizontal Position potentiometer
!Figul'c :3-D so that the vertical trace
on
the CRT
passes through the graticule eenter point.
·1. nemove the jumper from TPfi.
3.2.6 CRT
HORIZONTAL
GAIN
I . (\mnect the Mod Out port lo
t.htl
Ext Horiz port
on the System Analyzer's front panel.
:!.
St.~h~ct
G<'nerate FM fuuction and
Sr:ope
DC d1'i-
phly. Set the Horiz control for external bori;wntni
input (F.xt). Turn the Code Synthesizer lmd the
1<3xt I r:cl control OFF, and the 1 KHz
l-e\'t'l
mn-
trol •..:. 1-,out, half way.
:·i. Cn~·~r.
:.•.
ctll
O!:!dlloscope
with a calibrated
\'E>rLic~:~l
input tu Tl'ti
on
rhe Scope Amplifier hoard (.Figure
~l-1).
4. Using the fcont p1:1nel's horizontal
vern•.-r (
.,,~t.rol,
ndjo~t.
fur!:!.
a
Vp·p amplitude on the sinew,;vc at
'I'
PG.
u.
With 3 V
1
,,
"I'P6, adjust
the
Hori;:o:ont.al Gaiu
IJUtt'.ntion,,_-.. , 1gure
3-l) for a CH.T horizontal
trace
of
ti ..
1
Usc tht' front pane\
controls
lo
po::~ition
the
tt'<'KC
at
li
<.~onveniem
place near the
center of t.hc CRT.}
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15-0CT-97 lE:01 S'(STEMS MICROWAIJE
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2.
3.
4.
Conni!' , · · .<· \1od Out. port to the vertical input
port t\' .-, :::) on the
Sy~t.ern
Analyzt'r\; froM
panel. . . , . , .
Select Generate FM funetwu aud
Scop\~
DL tb-
ptay. Set the H.(.•riz
C(IJitrol
for a swcrp
Tate
of
1 InSec/Div and the hori1.ontal vernier to Cal. Het
the Vert control fol" an input sensitivity uf 1 V /lHv
and t.he vertical vernier to Cal.
Turn the Codo 8ynl.hesizer and the
l~xt
Level con-
trol U!<'F, and
the 1 KHz Level control up about
halt' way.
Conned an
oscilloe..co}U"
with a calibrated vcr.tkal
• ' f""
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TEL:01252 376385
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r::n 11\.11'\L .. u-.r
u
1 Ul"'ll"
L
~el(•Ct G(.'neratc }<'M
function and Scope
DC
dis-
pJay. Set the lloriz;
cont.tol for a
!\Weep
rate of
1
mSI:'c.~!Div
und
t.hr~
horizontal
vernier to Cal. Set
the- Vert control for an input sensitivity of 1 V /Div,
ati.d the vertical
w~. ~~r
to Cal.
2. Connect an
oscillo!'lcope
with a calibrated
vertical
input tn the Mod Out port on the front paneL
3. Turn the Code 8ynthesizer and the Ext Level cun·
1
rol
(WI•'
and adjustlhe 1 KHz Level cont.rol for
1:1
() Vp-p
;;,;wwave
un the attached oscilloscope.
-+. I
)il'iconuect.
the oscilloscope from
the
Mod Cut port
and eonneet
'i.,.
\1od Out port to the Vert input
f\Hrl
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