Tektronix 7704A User Manual

A d j ust H orizontal Interface Gain
.
To calibrate t
h e
H orizontal Interface,
set t
h e controls as given un d er
Control Settings
an
d p rocee d as follows :
α . Disconnect coaxial
connectors Ρ 4315 an d Ρ 4316
from t he H orizontal Out p ut boar d (see
F ig . 3-5) .
b . Connect

P4315 and Ρ 4316 to t h e vertical c hannels of
t h e test oscillosco p e with t h e ad a p ters and cables . (If t h e
test oscillosco p e h as α h ig h -imp edance in p ut, use 50-oh m
terminations at t he vertical-c h annel in p uts
.)
ε . Set t h e P O WER switch to on .
d . Set t h e test oscillosco p e for d ifferential op eration
between t he vertical channels (a dd
e
d d isplay mo
d e with
one channel inverte
d ;
invert t h e c hannel to w h ic h Ρ 4316 is
connecte d
),
an d α swee p rate of 100 microsecon d s/ d ivision .
F ree run
t
h e swee p .
e . Set t h e test-oscillosco p e vertical channels
for
α
deflection factor of 50 millivolts/ d
ivision with t h e inputs
DC cou p le d .
f .
R emove
t
h e left
side
cover from t he signal stand -
ar d izer calibration
fixture
an d
install t he calibration fixture
in t he
Α H O R IZ
com
p artment .
m . Set t h e P O WER switch to off .
F ig . 3-4 . L ocatio n of ad ju stmen ts on Α 22, V ertical I n terface b oar d .
Maintenance-7704A
Service
g . Set t he calib r ation fixture Test switch to V ert or
H oriz Gain and t h e R e p Rate switc h to 100 kH
z .
h . P osition t h e test-oscillosco pe d isplay to
align t h e
brig h t center trace wit h t he center
h orizontal line of t h e
graticule .
i . AD JU ST-Α H oriz Gain ad j ustment
R
2323
(see F ig .
3-6) for exactly six d ivisions of
deflection between t h e
secon d an d eig h t
h
traces .
j . Remove t
h e calibration fixture an d install it in t h e Β
H O
R
IZ
compartment .
k .
Set t he H O R IZO N TA L M OD
E
switc
h
to
Β .
Ι . R ep eat parts h an d i of t h is ste p ; ad j ust
Β H
oriz
Gain
a
d j ustment R 2313 (see
F
ig . 3-6) for t
h
e correct
test-
oscillosco p e d isplay .
η . Disconnect Ρ 4315 and Ρ 4316 from t
he
test
oscil-
losco
p
e and connect each to its res p ective j ack on t
he
H orizontal Out put board .
3- 9

Tektronix 7704A Specifications

General

Brand	Tektronix
Model	7704A
Category	Test Equipment
Language	English