HP 8753D Option 011 User Manual

High/Lo
w Band
Transition Adjustment
Required Equipmen
tand
T
o
ols
Non-metallic
adjustmen
t
to
ol
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HP
P/N
8830-0024
An
tistatic wrist
strap :
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: HP
P/N 9300-1367
An
tistatic
wrist
strap
cord
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HP
P/N
9300-0980
Static-con
trol
table
mat
and
earth
ground
wire
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HP P/N
9300-0797
A
nalyzer
warm-up
time:
30
min
utes.
This
adjustmen
t
cen
ters
the
VCO
(voltage
controlled
oscillator) of
the
A12
reference
assem
bly
for
high and
low
band
op
erations.
1.
Press
4
PRESET
5
4
SYSTEM
5
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
NN
N
SERVICE
MENU
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
NN
NN
N
N
ANALOG
BUS
ON 4
ST
ART
5
4
11
5
4
M/

5
4
STOP
5
4
21
5
4
M/

5
to
observe
part of
both
the
lo
w
and
high
bands
on
the
analog
bus.
2.
Press
4
MEAS
5
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
N
S
PARAMETERS
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
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
ANALOG
IN
Aux
Input
4
22
5
4
x1
5
4
F
ORMA
T
5
N
N
N
N
N
N
N
N
N
N
NN
NN
MORE
N
N
N
N
N
N
N
N
N
N
NN
NN
REAL
4
DISPLA
Y
5
N
N
N
N
N
N
N
N
N
NN
NN
N
N
N
N
N
N
N
N
N
N
DATAMEM
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
DATA-MEMORY
to
subtract
the ground
voltage
from
the
next
measurement.
3.
Press
4
MEAS
5
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
N
N
N
N
N
N
N
N
S
PARAMETERS
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
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
ANALOG
IN
Aux
Input
4
23
5
4
x1
5
4
MARKER
5
4
11
5
4
M/

5
.
4.
Press
4
SCALE
REF
5
4
.1
5
4
x1
5
and
observ
e
the
V
CO tuning
trace:
If
the
left
half
of
trace
=
0
6
1000
mV
and
righ
thalf
of trace
=
100
to
200
mV
higher
(one
to
t
w
o
divisions),
no
adjustmen
t
is
necessary
.
See
Figure
3-21
.
If
the
adjustmen
t
is necessary
,
follo
w
these
steps:
a.
Remo
v
e
the
upp
er-rear
bump
ers
and
top
co
ver,
using
a
torx
screwdriv
er.
b.
Adjust
the
V
CO
tune
(see
Figure
3-22
)
to
p
osition the
left
half
of
the
trace
to
0
6
125
mV.
This
is
a
v
ery
sensitiv
e
adjustmen
t
where
the
trace
could
easily
go
o
of
the
screen.
c.
Adjust
the
HBLB
(see
Figure
3-22)
to p
osition the
right
half
of
the
trace
125
to
175
mV
(ab
out
1
to
1.5
divisions)
higher
than
the
left
half.
Refer
to \Source
T
roublesho
oting"
if
y
ou
cannot
p
erform
the
adjustmen
t.
Figure HIGHLO
W here.
Figure 3-21. High/Low Band Transition Adjustment Trace
3-48 Adjustments and Correction Constants DRAFT
3/21/106 15:11
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HP 8753D Option 011 Specifications

General

Brand	HP
Model	8753D Option 011
Category	Measuring Instruments
Language	English