Agilent Technologies 4395A Service Manual

INSPECT
THE PO
WER ON
SEQUENCE
Check
the F
an
Turn
the analyzer
po
wer
on. Insp
ect
the
fan
on
the
rear
panel.
The
fan
should
b
e
rotating
and
audible.
If
case
of
unexp
ected
results,
c
hec
k
A
C
line p
ow
er to
the analyzer.
Chec
k
the
fuse
(rating
listed
on
the rear
panel). Chec
k the
line v
oltage
setting.
F
or
setting
the
line
v
oltage,
see
the
Power
R
e
quir
ements
in
App
endix
C.
If
the
problem
p
ersists,
con
tin
ue
with
the
Power
Supply
T
r
oublesho
oting
c
hapter.
Check
the
Front
P
anel
LEDs
and
Displa
ys
T
urn
on
the
analyzer
and
w
atc
h
for the
following
even
ts in
this
order:
1.
Beep
is
sounding.
2.
The
4
Ch
1
5
LED
turns
on
and
the
analyzer
displa
ys
In
ternal
T
est
In
Progress
for
sev
eral
seconds.
3.
The
analyzer
displa
ys
the
graticule.
If
case
of
unexp
ected
results,
con
tin
ue
with
Digital
Contr
ol
T
roublesho
oting c
hapter.
Check
Error
Message
T
urn
the
analyzer
p
o
w
er
on.
Insp
ect
the
LCD.
No
error
message
should
b
e
displa
y
ed.
If
the
follo
wing
status
annotation
app
ears
on
the
LCD,
the
A1
CPU
is
susp
ected.
Con
tin
ue
with
the
Digital
Control
T
r
oublesho
oting
c
hapter.
Svc
(Status
annotation)
If
the
follo
wing
error
message
appears
on the
LCD, con
tinue
with
the
INTERNAL
TESTS
F
AILURE
TR
OUBLESHOOTING
in
this
c
hapter.
POWER
ON TEST
FAILED
These
error messages
indicate
that
one
of
p
o
w
er-on
self
tests
fails.
If
an
other
error
message
appears,
refer to
the Err
or Messages
in Messages.
If the resp onse of fron
t panel, GPIB commands, or built-in FDD is unexpected, con
tinue
with
the Digital Contr
ol T
roubleshooting c
hapter.
6-4 Troubleshooting

Agilent Technologies 4395A Specifications

General

Brand	Agilent Technologies
Model	4395A
Category	Measuring Instruments
Language	English