Tektronix 5440 Instruction Manual page 83

To ill
u
st
r
ate resistor selectio
n
, co
n
si
d
e
r t h
e display "TEST 1" in EXT. 1 .
R
e
q
uired
r
esistor val
u
es are
s
h
own.
C
H
A
R
ACT
ER
Τ
Ε
S
Τ
(S
p
ace)
1
CO LUMN
CO
LUMN R
O
W
RE
SISTO
R
9 16 .5 Κ
4
10
13 Κ 5
1 150 Κ 5
9 16 .5 Κ
4
0 O
p
en 10
2 75 Κ 1
Fig . O
p
tio
n
3-3 .
RE
SISTO
R PR
OG
R
A
M F O R "T
E
ST 1" .
R
O
W
RE
SISTO
R
51 Κ
37 .4 Κ
37 .4 Κ
51 Κ
16 .5 Κ
O p
e
n
In Fig . O
p
tion 3-3 t
h
e
M
atrix i
nd
icates, fo
r
exam
p
le, t
h
at t
h
e c
h
a
r
acter "Τ" is
pr
ogramme
d b
y
Col
u
mn 9 a
nd R
ow 4. T
h
e Selectio
n M
atrix also indicates t
h
at α 16 .5 Κ resistor is re
qu
ire
d
for Col
u
m
n
9
w
h
ile 51 Κ is re
q
uire
d
fo r R
ow 4. To o
b
tai
n t h
e space befo
r
e t
h
e "1," t
h
e "ADD S
P AC E
" o
p
e r atio
n
is
u
sed .
T
h
e c
h
oice of Time Slots
d
e
p
e
nd
s on t
h
e desire
d p
ositio
n
of t
h
e c
h
aracter wit
h
i
n t h
e wo
rd
.
Prog
r
ammi
n
g t
h
e fi
r
st c
h
aracter from TS1
d
is
p
lays t
h
at c
h
a
r
acter i
n t h
e left-most c
h
a
r
acter
p
ositio
n
of
t
h
e
d
is
p
lay wo rd
. Si
m
ila
r
ly, p
r
og
r
ammi
n
g t
h
e fi
r
st c
h
a
r
acter from TS2, TS3, or TS4 dis
p
lays t
h
at
c
h
aracte
r
i
n t h
e secon
d
, t
h
ir
d
, o
r
fourt
h
positio
n
wit
h
i
n t h
e
d
is
p
lay wo rd r es
p
ectively . Program
m
i
n
g t
h
e
fi
r
st c
h
a
r
acter from TS5 to TS10,
h
oweve
r
,
d
isplays t
h
e c
h
aracter as if it is
p
rogramme
d f r
o
m
TS4. To
move t
h
e c
h
aracter furt
h
er rig
h
t re
qu
ires
pr
ogrammi
n
g "ADD S
P
AC
E
" (colum
n
0,
R
ow 10) i
n
Time Slots
afte
r
TS3.
O
n
ce t
h
e Time Slot for t
h
e fi
r
st c
h
aracter is c
h
ose
n
, succeedi
n
g c
h
a
r
acters are
p
rogramme
d i n
succee
d
i
n
g Time Slots. If,
h
owever, α Time Slot ot
h
er t
h
a
n
TS1, TS2, or TS3 is left u
npr
ogramme
d
,
c
h
a
r
acter
p
ositio
n
is u
n
c
h
a
n
ge
d d
uring t h
at Time Slot . Forexam
p
le, if TS6 a
nd
TS8 a
r
e
pr
ogramme
d
a
nd
TS7 is
n
ot, t
h
e
n t h
e c
h
a
r
acte
r d
is
p
layed i
n
TS8 is
d
is
p
layed i
n t h
e same
p
ositio
n
as if it were
p
rogramme
d
i
n
TS7.
To furt h e r
clarify t
h e p r og r
ammi
n
g co
n
ce
p
ts o
u
tli
n ed
h
e
r
e, α co
m
plete circ
u
it
d
iagram for
programming α word is give
n
i
n F
ig . 4. T
h
is ci
r
c
u
it
d
is
p
lays "T
E
ST η"
w
h
e
r
e "η" is a
numb
e
r f r
om O to 99
selectable
b
y t
h
e
u
ser. Time Slots TS1 to TS5 a
r
e used to
pr
og
r
am "T
E
ST 's
p
ace)". Ti
m
e Slot 6 wit
h
Switc
h
S1 a
nd R
10 t
hr
oug
h R
19
pr
og
r
ams t
h
e te
n
s
d igit of t
h e numbe r
. S1 selects t
h e
n
um
b
er dis
p
laye
d
.
Simila
r
ly, S2 selects t
h
e u
n
its digit
p
rogrammed i
n
TS7. T
h
ere a
r
e seve
r
al c
h
oices fo
r t h
e format of t
h
e
nu
m
b
er w
h
en t
h
e
nu
m
b
e
r
is less t
h
a
n
10 . If it is
d
esirable to display t
h
e
n
umber "8" as "08," t
h
e
n R
10
B
is
u
se
d
to
pr
og
r
am α "0" i
n t h
e te
n
s
d
igit an d R
10A is
n
ot
u
se d
. If α
s
p
ace is
d
esi
r
e
d i n
t
h
e tens
d
igit (i
n
a
dd
itio
n
to t
h e s
p
ace i
n
TS5) so t
h
at t
h
e location of t
h
e u
n
its
d
igit
d
oes
n
ot s
h
ift w
h
e
n
c
h
a
n
gi
n
g f
r
om"9"
to "10," t
h
e
n R
10A is
u
sed a
nd R
10
B
is
n
ot . If
n
eit
h
er
R
10A
n
or
R
10
B
is use
d
, t
h
e
un
its digit i
n n u
m
b
e
r
s
less t
h
a
n 10 is dis
p
laye d
in t
h
e
d
is
p
lay locatio
n
of t
h
e te
n
s
d
igit .
Col
u
mn a
nd R
ow con
n
ectio
n
s a
r
e c
h
ose
n
accordi
n
g to t
h
e dis
p
lay locatio
n
of t
h
e wor
d
on t
h
e
scree
n
. Co
n
nection of
p
rogrammi
n
g
r
esistors of R
ow 1 a
nd Col u
m
n
1
d
is
p
lays i
n
t
h
e locatio
n
of ΕΧΤ 1 .
L
i
k
ewise, co nn
ectio
n to R
ow 2 a
n
d Column 2 displays i
n t h
e location of ΕΧΤ 2.
ADDITIO
N
A
L
CO
N
SID
ER
ATIO
N S
T
h e co nn
ectio
n
s to t
h
e Exter
n
al
R
ea
d
o
u
t I
n
p
u
t co
nn
ecto
r
are
n
ot s
h
o
r
t-circuit protecte
d
. S
h
orts
may
d
amage t
h
e
R
ea
d
o
u
t System .
T
h
e T
r a
p
ezoi
d
,
En
d-of-
W
o
rd
, a
nd
T
r
igge
r
sig
n
als a r
e for special
p
rocessi
n
g a
pp
licatio
n
s. T
h
ey
h
ave very limite
d dr
ivi
n
g ca
p
a
b
ility a
n
d s
h
o
u
ld
b
e emitter follower
b
uffere
d
if
u
se
d
for any
p
ur
p
ose.
O
p
tio
n
3-5440
O
p
tio
n
3, page 3