NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
N
SRC
ADJUST
MENU
Accesses
the functions
that allo
wy
ou to
adjust the
source:
N
N
N
N
N
N
N
N
NN
NN
NN
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
NN
NN
NN
SRC
TUNE
on OFF
Tests
the pretune
functions of
the phase
lo c
k
and
source assem
blies. Use
the en
try con
trols to
set RF
OUT to
any
frequency from
300 KHz
to
3
GHz.
When
in
this
mo
de:
1.
Set
analyzer to
CW frequency
b
efore
pressing
N
NN
NN
NN
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
N
SRC
TUNE ON
.
2.
RF
OUT
is
1
MHz to
6MHz
abo
ve
indicated
(en
tered)
frequency.
3.
Instrumen
t
do
es
not
attempt
to
phase
lo
c
k.
4.
Residual
FM
increases.
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
N
N
N
N
N
N
N
N
SRC TUNE
FREQ
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
N
N
N
ALC
ON
off
T
oggles
the
automatic
lev
eling
con
trol
(ALC)
on
and
o.
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
MAIN
PWR
DAC
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
N
N
N
N
N
N
N
N
N
N
N
SLOPE
DAC
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
SRC
ADJUST
DACS
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
N
N
N
N
N
N
N
N
N
N
HB
FLTR
SW on
OFF
N
N
N
N
N
N
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
SOURCE
PLL
ON
off
(SM3)
With
this mo
de
switc
hed
OFF,
the
source
sta
ys
in
the
pretune
mo
de
and
do
es
not
attempt to
complete
the
phase
lo
c
k
sequence.
Also,
all
phase
lo
c
k
error
messages
are
disabled.
The
fractional-N
circuits
and
the
receiv
er
op
erate
normally
.
Therefore,
the
instrumen
t
sw
eeps,
but the
source
is
b
eing
driv
en
b
y
the
pretune
D
A
C
in
a
stair-stepp
ed
fashion.
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
PLL
AUTO
ON
off
(SM4)
Automatically
attempts
to
determine
new
pretune
v
alues
when
the
instrumen
t
encoun
ters
phase
lo
c
k
problems
(e.g.
\harmonic
skip").
With
N
N
N
N
N
N
N
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
PLL
AUTO OFF
the
frequencies
and
v
oltages
are
not
c
hanging
as
they
are
when
they
are
attempting
to
determine
new
pretune
v
alues,
so troublesho
oting the
phase-lo c
ked
lo
op
circuits
is
more
con
v
enien
t.
N
N
N
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
PLL
DIAG on
OFF
(SM5)
Displa
ys
a
phase
lo
c
k
sequence
at
the b
eginning of
each
band.
This
sequence
normally
o
ccurs
v
ery
rapidly
, making
it
dicult
to troublesho ot phase lo
ck problems. Switc
hing this mo de ON
slows the pro cess do
wn, allo wing y
ou to inspect the steps of the
phase lo c
k sequence (pretune, acquire, and trac
k)
by pausing at
each step. The steps are indicated on the displa
y, along with the
channel (C1 or C2) and band n
umber (B1 through B13).
This mo de can be used with PLL P
AUSE to
halt the pro cess at
any step. It can also b e used with the analog bus counter.
NNNNNNNNNNNNNNNNNNNNNNNNNNNNN
PLL PAUSE
Used only with PLL DIAGmode.
NNNNNNNNNNNNNN
CONT
indicates that it will
continuously cycle through all steps of the phase lo ck sequence.
NNNNNNNNNNNNNNNNN
PAUSE
holds it at anystepofinterest. This mo de is useful for
troublesho oting phase-lo cked lo op problems.
NNNNNNNNNNNNNN
MORE
Accesses the service mo des more menu listed b elow.
10-14 Service Key Menus and Error Messages DRAFT
3/21/106 15:14
Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.com
To Next Page
Loading...
