Agilent Technologies HP 83711A - Service-Related Special Functions

Service-Related
Special
Functions
The
synthesizer rmware
contains several
service
related
routines
that
can
be
used when
diagnosing faults
in
its
circuitry
.
Use
of
these
special
functions
is
detailed in
the HP
83711A/12A and
HP
83711B/12B
Synthesized
CW
Generators
Service Guide
(Option 0B3;
HP part
number
83711-90134).
The
service-related special
functions
are
listed
in
the
following
table
.
They
can
be
accessed
by
pressing
4
SPCL
5
,
f-number
,
4
Hz
5
(ENTER)
where
f-number
is
a
number
from
the
rst
column
of
the
table
.
Details
on
how
to
use
each
special
function
can
be
found
in
the
service
manual.
T
able
7-1. Service-Related
Special Functions
Special
Function
Number
Special
Function
Name
Description
60 DIREC
T
CONTROL
Allows
direct
manipulation
of
certain
data bits
within
the
synthesizer
circuitry
.
61 METER
NODE
Allows
entry
of
a
measurement
node where
the
internal
volt/ammeter
will
take
a
measurement.
62 L
O
FREQ
Displa
ys
the
synthesizer
internal
L
O
phase
locked
loop
frequenc
y
.
63 OFFSET
FREQ
Displa
ys
the
synthesizer internal
Oset phase
locked
loop
frequenc
y
.
70 HOLD
POWER
ON/OFF
Holds
the
power
loop
at
its
current
setting.
71 CAL
YIG
OSC
Recalibrates
the
YIG
oscillator
and stores
the new
tuning curve
in
EEPROM.
See Also
HP 83711A/12A and 83711B/12B Synthesized CW Generators Service
Guide
7-17