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Servicing
Performance Tests
f
Press
more 3 of 3
,
more 1 of 3
, and then
set pat label
.
g
Use the displayed softkeys to create a label to identify this new pattern. It
will minimize confusion as you use the pattern generator. Enter the suggest-
ed label
ALL ONES
. Press
FINISH ENTRY
when you have finished entering all
the letters in the label.
h
Press
more 2 of 3
,
more 3 of 3
,
save pattern
, and then
INTERNL PATT 1
.
i
Press the left-side
select pattern
softkey.
j
Press
user pattern
and then
INTERNL PATT 1
.
12
Set the BIAS ADJUST potentiometer fully clockwise, then verify that the
optical output power does not exceed +2.5 dBm.
13
Remove the cable from the
DIGITAL IN DC COUPLED
input connector.
14
Press the Agilent 83430A’s front-panel
SELECT
key repeatedly until the
ANALOG
IN AC COUPLED
light is on.
15
Make sure that the front-panel
BIAS ADJUST
knob is fully clockwise.
16
Verify that the optical output power does not exceed +0.5 dBm.
17
Turn the
BIAS ADJUST
knob fully counterclockwise.
18
The optical power should measure between –2.0 dBm and –5.0 dBm.