Tektronix 7704A User Manual

k . I N T ER ACTIO N -C h
ec
k step
6 .
Ι . Disconnect t he p ro be .
9 . Ad j ust Geometry
α . C
h
ange t he
followi
ng control settings :
VER TICA L M OD E

R IG H T
H O R IZO N TA L M OD E

Α
b
.
Co
nn
ect t
h
e
mar k er
o
u
t p ut of t
h
e
time-mark
gen-
erator to t
he cali b ration fixture Αυχ
In
connector an d t he
t
r
igger ou tp u t to t
he
Α
time- b
ase unit
external
trigger
in pu t .
ε .
Set t h
e
time-mar k
generator fo
r
one-millisecond
markers
and one-milliseco nd triggers
.
d . Set t he Α time-base u n it for a u to trigge r ing from t he
external so urce at α swee p rate of 0 .5 millisecon d
/
d ivisio
n .
e . Set the cali b ration fixture Test switc h to V ert or
H oriz Αυχ In . Set t h e Am p litude a nd P ositio n con trols so
t he time mar k ers exte nd above and below t he upp er a nd
lower graticule limits .
f .
Set t he time-
b
ase u
n it va r ia b le time/division con t r ol
to obtai n exactly
one mar ke r fo r each ma j or graticule
d ivision .
g .
Set t h e time-ma rk generato r for both on e- a nd
0
.1-milliseco nd m ar k ers .
h .
C
HE
CK-
V ertical b
owing an
d
tilt of t
h
e
m ar
k er
dis p lay is less t han 0 .1 d ivisio n
(eac
h
0
.1-milliseco
n d
mar k er re p resents 0 .1 divisio n ) .
i . AD JU ST-Geometry adjustment R 41171 (see F ig .
6-31) for
minimum b owi ng of time mar k ers . A dj ustme n t
migh t h ave to be com p
romise d
to o
b
tain less t
h
a
n
0 .1
d ivisio n b owi ng and tilt
everyw h ere
wit
h
in t
h
e graticule
area .
j . Disco
nn ect
all
test eq uipme nt .
REV . Β , ΜΑΥ
, 1976
9 Α . A d j ust S h iel
d V olts
Calibration-7704A Service
α . Sh ort t he vertical d eflection leads toget h er wit h α
j umper
lead
.
b . Con n ect t h e positive d o voltmeter lea d to t h e d eflec-
tion leads an d n ote t h e rea d i n g .
ε . Discon n ect t h e positive voltmeter lea d and remove
t h
e s h ort .
d . Co n nect t he p ositive do voltmeter lea d to pi n 4 of
Ρ41 U, on t
he
Ζ
-Axis
boar
d .
e . AD
JU
ST-S h iel d V olts ad j ustme n t R 41176 for ap-
proximately
the same rea d ing as obtaine d in part b of t h is
step .
-,/ 10 . C h ec k E xternal Ζ -Axis O p eration
ΝΟΤΕ
If t he Signal-Buffer subassembly wasd eleted from
this
inst r ument (Option 7) omit this step .
α . R emove t h e calib r atio n fixture and i n stall t he am p -
lifier unit in
its p lace .
b . Connect t h e output of t he low-frequency sig n al
gen erato r to t he amplifie r - u nit i np ut (use α BN C Τ
co nn ector at t h e am p lifier i npu t) .
ε . Set t he a m plifier u
nit for
α cali
b rate d d eflectio n
factor of 0 .5 volt/division .
d . Set t he Α time-base un it fo r a u to, internal triggeri n g
at α sweep rate of 10 microseco n ds/divisio n .
e . Set t h e sig n al ge ne r ator for α four-division d is p lay at
50 k ilo h ertz .
f . Connect t h e sig n al fr om t he o u t p ut of t he Τ
con n ecto r at t h e amplifier in pu t to t he Z-AXIS I NPU T
conn ector on t he rear p an el .
V g
.
CHECK-Top p ortio n of d isplayed wavefo r m is
blan ked out .
h .
Discon
n
ect all
test e q uipme n t
a
nd remove t he
plug-i
n
u
n its .
4-9

Tektronix 7704A Specifications

General

Brand	Tektronix
Model	7704A
Category	Test Equipment
Language	English