T Est 8 .1B : T Railing E Dge T Est - HP 8110A Service Manual

Test 8.1
b
: Trailing
Ed
ge Test
3-4 6 Testing t
h
e HP 8110Α
Minimum Trailing E dge and
T
railing E dge range within < f 5V
win do w .
1 . Set up t he HP 8110 Α as described in "Ini t ial Set up of
t
he
HP 8110 Α"
2 . On t h e HP 8110 Α press ινιο
R
ε and set up 'OUTPUT 1 and
OUTPU T 2;̞ p ages as s hown in the
f ollowing illu strations :
Per- 1
.00
μs
Nor-ma 1
ON
1 .80
ns
De l α 10 .0
ns
Dut C c 50 .0 %
O
ffset
+0 .0 mV
ιe α&f 2 .00 ns
Ρm ρ 1 i t 5 .00 U
Τr αί 1 Ε Ε
50 Ω into 50 . Ο Q
ΤRG- ΜΟ D Ε OUTPUT 1 OUTPUT -
PATTERN]
Co
n
figuri n
g Out
p
ut Scree
n
1
10
Per 1 .00 μs Νο rm
α 1 O
FF
C
MODIFY
Delay
10 .0 ns Separate Out 2-
Dut c 50 50 .0% Offset
+0 .0 mV
Lea Ε ~ι 2 . 00 ns
F
ιωι 1 ί t
5 . ΘΟ U .
Τ
r
α ί 1 Εd Ε
50 into 50 .00
ns
Τ RG-MOD E7 OUTPUT 1
OUTPUT - PATTERN
Config
ur
i
n
g Output Screen 2
N
ote Ι
When y ou are test ing in struments with 2 output ch anne ls
i
t
i
s
n
ecessary to :
α . Co nfigu re
bot
h
c
h annels.
b . S wi tch
O
FF
t
he channel
t
hat
i
s
n ot being tested
If y ou
t
hen test the other channel :
c . S wi tch ON
t
h e cha nne l y ou are test ing, and s witch
O
FF
t
he other
channel .
3 . Set t he di gitizing oscilloscope HP 54121 Τ:
ι Select th e oscill oscopes Tim ebase me nu and set ΤΙΜΕ / DIV to
2
n
s/div
a
n d DELAY to app roximately 529 n
s
ι Select th e osc illoscopes
D
elta t me nu
a
nd set S TART ON EDGE
= NEG1 and STOP ON EDG E = NE G1
4 . While t he osc ill oscop e
i
s in the D elta t menu, press the
PRE
CIS
E E
DG
E F
I
N
D
k
ey