HP 8340B Manual page 186

4.
Enter the DUT's option configuration (refer to
the
OUT
rear panel serial tag).
a.
One at
a time,
enter the three
digit option numbers (many instruments
have
only
one option, or
none at
all).
b.
Once
all
options are entered, press [ENTER].
If
the instrument is
a
standard (no
options), just
press [ENTER].
If
test data for this instrument exists
on
the current data disc (from previously
run
tests), the
computer does not ask for option information.
5.
If
you
entered option information
in
step
4,
the computer displays the options you entered (000
is
displayed
if
no
options were entered).
If
the list is
correct, press [Yes],
if
not,
press [No] and re-enter the option
configuration when
prompted.
6.
The computer now reads the rest of the instrument's calibration constants.
If
the computer offers
the [Menu] softkey, go directly to step
7.
Calibration Constant Discrepancies
If
there is
a
Cal Constants data file
for
this
instrument on
the data disc, and the file does not match the
cal constants in
the instrument,
the
computer displays:
DUT CAL #Cal Constant Name
=
### BUT FILE
=
###
[DUT OK]
[NEITHER]
[FILE OK]
The
most
common
reason for
this screen to be displayed
is
that
someone
has pressed
[SHIFT]
[PEAK] on the synthesizer. This function causes the synthesizer to automatically optimize its
RF
output power and to update the
YTM GAIN, YTM OFFSET,
and the
YTM
BX GAIN cal constants.
If
the
cal constant displayed is
one
of those
listed
above,
and the synthesizer does not have
a
front panel
failure annunciator on, the cal constant in the
DUT
is probably fine.
In
any case, you must determine
which
cal constants are valid (one method
is by examining the printed copy of the
cal constants
located underneath the synthesizer's top cover), or assume that the data disk (file)
is
allright.
Select the appropriate softkey
in
response to the prompt.
If
you select
[NEITHER], you must enter the
correct cal
constant value. After all
cal
constant discrepancies are taken care
of,
the program returns
to normal operation.
7.
The software
gives you
a
choice of the following:
[Menu]
lets you
access the
test
menu for the type of testing you selected (attenuator calibration or
operation verification).
[New Dut]
tells the software
you have connected a
different
DUT
to the HP-IB. Note
that
if
the
model number of the new
DUT
is
not the
same
as the previous one, the program automatically
returns you to the
8340 FAMILY TEST SYSTEM
menu.
8.
If
you select [Menu],
the program checks to see
if
a
printer is connected to the
HP-IB.
If
the
program finds
a printer,
it gives you
a
selection of the HP 2225A (ThinkJet
printer), the
HP 2673A,
or OTHER. Although other printers can be used, they may not
be directly compatible with the
program's
alpha and graphics output.
7-2 Testing
an HP 8340A/B
or
HP 8341A/B
Attenuator Calibration and Operation Verification Test Software