Tektronix 7704A User Manual

Calibration-7704A Service
g . AD JU ST-Inte r face
h
ig
h -f
r
e q
uency
compensation
R 2284-C2281 (see F ig . 6-33) for optim
u m
s q
uare leading
corne r
a
n d flat to p on d is p laye d pulse wit h minimum
aberratio n s with i n limits give n in pa rt ε . If necessa r y, com-
promise
t
he a dju stmen ts given i n Ta b le 4-3 (except
for
C2231)
fo r optim u m pulse res p onse for both vertical com-
p art
m ents . If re-a dj ustment is necessary, rec
h
ec
k p
arts
ε
t hr o ugh f .
,\/16 . Ch ec k V ertical Am p lifie r B an d wi dt h
α . Co nn ect t h e .out p ut
of t he h ig h -f r e qu en cy con sta n t-
am p litu d e sig n al generator to t
h
e cali b ratio
n fixt u re
C
W
In
co nn ecto r .
b . Set the cali br atio n fixtu r e Test
switc h to V ert or
H o r iz F re q R es p .
ε . Set t h e time- b ase unit
for
α
fr ee- r unni ng swee p at α
r ate of 200 n an osecon d s/ d ivisio n .
d . Set t he h ig h -f r e qu e n cy ge ne r ator fo
r eig h t d ivisio ns
of d eflectio n at its refe r e n ce
freque n
cy .
e .
W
it hout ch angi ng t h e out pu t amplitu d e, i n crease t h e
o u t p ut
fre q
ue
n
cy
of t h e generator un til t he dis p lay
amplitu
de is re du ce d to 5 .6 d ivisio n s (-3 d B p oint) .
-,/f . CH E CK -Ge ne r ator out p ut f r e q uency must b e 230
mega h ertz o r h ig h er (210 mega h ertz if checke d ou tsi
d
e t
he
+20 ° C to
+30
° C tem p erature r an ge) . Act u al
f r eque n
cy
( R IG H T VER T) mega h ertz . (Optio n 9 : Ge n erator
out pu t
f r eq uency must b e 280 mega h ertz or h
ig he r wit h in t he
+20 ° C to +30 ° C tem p erature
r
a
n
ge, or 210
mega h e r tz
outsi d e t h is ra n ge .)
g . M ove t h e cali b ratio n fixtu r e to t
h
e
LEF T VER T
compartment, and set t he VER TICA L
M OD E switc h to
LEF T .
-,/h . R e p eat p arts d t h ro ug h f . Actual fre qu e
n
cy
(LEF
T
VER T) mega h e r tz .
V 17 . C h ec k V ertical C h annel Isolatio n
α . R eplace the sig n al sta nd a rd ize r cali b ratio n fixtu
r
e
wit
h t h
e
am p lifier un it .
b . Co nn ect t h e outp ut of t
h
e h
ig h -f r equency sig n al
gene r ato r to t he a mp lifier un
it
i
n p
ut
.
4- 1 2
ε . Set t he am p lifie
r unit
and
sig n al ge ne r ato r fo r an
eig h t- d ivision d isplay
at 100 mega he r tz .
d . Set t h e VER TICA L M OD E switc h to R IG H T .
-,/e . C HE CK -C RT d isplay for n ot more than 0 .1
d ivision of 100-mega h ertz sig n al (c
h
a
nn el isolatio n at least
100 :1 at 100 mega h
ertz) .
f . Set t he VER TICA L M OD E switc h to LEF T .
g . Set t h e generato
r
fo
r
an
eig h t- d ivisio n d is p lay at 200
mega h ertz .
h . Set t he VER TICA L
M
OD
E switc h to R IG HT .
-,/i .
CHE
C
K -C R T d is p lay fo r not more t h an 0 .2 d ivi-
sion of 200-mega h
ertz signal (c hann el isolatio n at least 50 :1
at 200 mega he r tz) .
j . M ove
t h e am p lifie r unit to the R IG H T VER T com-
p
artme n t (leave sig n al conn ected) .
k . Set t he ge n erator fo r an eig
h t- d ivision d is p lay at 200
mega h ertz .
Ι . Set t he VER TICA L MOD E switc h to LEF T .
-1/m . C HE CK -C R T dis p lay for not mo
r e th
an
0 .2
d ivisio n of 200-mega h ertz sig
n
al (c
h an n el isolatio n at least
50 :1 at 200 m ega
he r tz) .
η . Set t h e VER TICA L M OD E switc h to R IG H T .
ο . Set t he ge ne r ator for an eig h t-division
dis p lay at 100
mega he r tz .
ρ . Set t h e VER TICA L M OD E switc
h
to
LEF T .
Ν
/
q
.
C HE CK -C R T d is p lay for n ot more
t h an 0 .1
d ivisio n of
100-mega he r tz signal (c hann el isolatio n at
least
100 :1 at
100 mega h ertz) .
r . Disco n nect all test eq ui p me n t .
REV . Β , ΜΑΥ
, 1976

Tektronix 7704A Specifications

General

Brand	Tektronix
Model	7704A
Category	Test Equipment
Language	English