Agilent Technologies 4395A Service Manual

Internal
Tests
Failure
Troubleshooting
Check
the P
ow
er-On Selftest
The analyzer
performs
the p
ow
er-on selftest
ev
ery
time
when
the
analyzer
is
turned
on.
In
the
p
o
w
er-on
selftest,
some
built-in
in
ternal
tests
are
executed
sequen
tially
.
The
rst failed
test
indicates
the
most
probable fault
yassem
bly and
you
should
b
e
replaced.
If
the
po
wer-on
selftest fails
and \
POWER
ON
TEST
FAILED
"
message
is
displa
y
ed,
execute
all
in
ternal
tests
to
iden
tify
the
rst
failed
test.
Refer
to
the
follo
wing
steps
to
execute all
in
ternal
tests.
Then
refer
to
the
T
able
6-1 to
know
what assem
bly y
ou
should
replace.
Execute
All
Internal
T
ests
If
the
p
o
w
er-on self
test fails
and \
POWER
ON
TEST
FAILED
"
message
is
displa
y
ed,
y
ou
should
execute
the
all
in
ternal
tests
and
iden
tify
the
rst
failed
test.
T
o
execute
all
in
ternal
tests, y
ou
should
sp
ecify
test
n
um
b
er
as
0
in
the
4395A
service
tests
mo de.
a.
Press
4
PRESET
5
,
4
SYSTEM
5
,
NN
N
N
N
N
N
N
N
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
N
N
N
SERVICE
TESTS
,
4
0
5
,
and
4
x1
5
to
access
the
in
ternal
test
0:
ALL
INT.
b.
Press
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
EXECUTE
TEST
to
execute
the
ALL
INT
test.
c.
W
ait
un
til
the
test
result,
P
ASS
or
F
AIL,
is
displa
y
ed.
d.
Press
the
4
*
5
,
4
+
5
k
eys
to
nd
the
rst
o
ccurrence
of
a
F
AIL
message.
Execute
the
Individual
T
est
If
y
ou
w
ould
lik
e
to
p
erform
the
in
ternal
test
individually
,y
ou
should
sp
ecify
in
ternal
test
n
um
b
er
in
the
4395A
service
tests
mo
de.
a.
Press
4
PRESET
5
,
4
SYSTEM
5
,
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
SERVICE
TESTS
.
Pressing
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
NN
N
INTERNAL
TESTS
jumps
to
the rst
test in
ternal test,
test:0 ALL
INT.
b.
Select
the
test
using
the
RPG
knob,
4
*
5
,
4
+
5
k
eys
or
ENTR
Y
k
eys.
c.
Press
N
N
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
EXECUTE
TEST to
execute the
sp
ecify
ed
test.
d. W
ait un
til
the
test
result,
P
ASS
or
F
AIL,
is
displa
yed.
Note
Internal test 1, 2, 3, 7, 17, 18,
38 and 39 are not executed in the po
wer-on
selftest. You should perform these tests b
y sp ecifying test n
umber or b
y
executing all in
ternal tests.
6-6 Troubleshooting

Agilent Technologies 4395A Specifications

General

Brand	Agilent Technologies
Model	4395A
Category	Measuring Instruments
Language	English