Tektronix 7704A - Operating I Nf Orm Atio N

O p erating
Information-7704A Service
BEAM F I ND ER Com p resses
and d efocuses d is p laywit h in
graticule area regar d less of dis-
play p osition or ap p lie d signal .
T R AC E R OTATIO
N Screw-
d river adj ustment to align
trace wit h graticule .
CA L I BR ATO R P rovides cali-
brated 40
m V -4 V, 1 kH z
s q uare-wave signals .
P O WER (PULL)
VER TICA L M OD E Selects
vertical plug-in com p art-
mentls) p
rovi d ing t h e vertical
d eflection signal
.
VER T T R AC E S EP A RATIO N
( Β
)
V ertically positions the B
H
O
R IZ trace wit h respect to
t he Α H OR IZ
trace
I
d ual-
swee p mo d es only)
Α S ΤΙ G Screw d
river
a
dj ust-
ment to o b tain α well-define d
d is p lay . Does not re q uire re-
a dj
ustment
in
normal use .
Α T R IGG ER SO UR CE Selects
internal trigger source for Α
HOR ΙΖ time b ase .
Α
ΙΝΤΕΝ Controls b rig h tness
of th e trace pro
d uce d by t h e
Α H O R IZ plug-in .
F OC US A d j
ustment for o p ti-
mum d is p lay sh ar p ness .
F ig . 1- 2 Α . 7704 Α fro n t-pa n el controls and con n ectors .
I NT EN SITY Controls bright-
ness of t h e display (exce p t t he
rea d out p ortion) .
RE ADO U T
Controls
bright-
ness of t h e rea d out p ortion of
----

t heCRTd is p lay . Turns off the
rea d out system w h en in the
CC W d etent p osition .
G R AT I LLUM
Controls grati-
cule illumination .
Β
T R IGG ER SO UR CE Selects
internal
trigger source for Β
H OR IZ time b ase .
Β ΙΝΤΕΝ
Controls b rig h tness
of the trace pro d uce
d
by
t h e Β
H O R IZ plug-in .
HOR IZO N TA L M OD E Selects
h orizontal
plug-in
compart-
ment(s) provi d ing t h e h ori-
zontal d eflection
signal .