Agilent Technologies 4349B - Measurement Configuration Steps

Check
7, Any
Error Code
on LED?
1.
Turn o
the
4349B
.
2.
Turn on
the
4349B
while
watching
LEDs
on
the
A2
CPU
Board
Assembly
.
3.
Check if
the
LEDs
light
in
the
sequence
shown
in
Figure
4-9
.
4.
If
LEDs
light
as
the
sequence
,
replace
the
LCD
Assembly
,
otherwise
(possibly,
\HALT"
doesn't
turn
o
or
\BERR"
lights)
replace
the
A2
CPU
Board
Assembly
.
Note
When
replacing
the
A2
CPU
Board
Assembly
,
refer to
\Replacing the
A2 CPU
Board
Assembly"
in
Chapter
3
for
handling
the
ROM and
EEPROM on
the A2
Assembly
.
Figure
4-9.
CPU
Board Assembly
LED Light
Sequence
Troubleshooting 4-13