Specifications

48 Chapter 3
Troubleshooting
How to Troubleshoot the Test Set
How to Troubleshoot the Test Set
Document the result of each step in case you need to contact Agilent
Technologies for service assistance. General troubleshooting steps are
illustrated in Figure 3-2 on page 49.
NOTE Periodic Adjustment Interval
The calibration programs Periodic Calibration, IQ Calibration and
Eb/No Calibration should be performed after the replacement of any
assembly referred to in Table 7-1 on page 159, or at least every 24
months. See Chapter 7 , “Periodic Adjustments,” on page 157 for details.
On power-up, the Test Set runs the Self-Test Diagnostic. Most of the
Test Set’s digital control functions are tested. The outcome of the test
appears on the display (if operating) and on four LEDs viewable
through an access hole in the top internal cover, see Figure 3-1.
Figure 3-1 LEDs
0
leds_1
k
1
k
1
©
k
2
k
3
k
4
k
5
S
h
i
f
t
Shift
k
2
©
k
3
©
k
4
©
R
e
l
e
a
s
e
M
e
n
u
P
a
u
s
e
/
Continue
C
D
M
A
G
e
n
R
F
G
e
n
C
D
M
A
A
n
l
R
F
A
n
l
C
o
d
e
D
o
m
S
p
e
c
A
n
l
P
r
e
s
e
t
H
o
l
d
R
e
c
a
l
l
L
o
c
a
l
M
e
a
s
R
e
s
e
t
S
a
v
e
A
D
R
S
P
r
e
v
P
r
i
n
t
I
n
s
t
C
o
n
f
i
g
H
e
l
p
P
r
i
n
t
e
r
C
o
n
f
i
g
I
/
O
C
o
n
f
i
g
E
r
r
o
r
M
e
s
s
a
g
e
A
F
A
n
l
S
c
o
p
e
R
e
s
e
t
m
W
H
z
µ
V
s
k
H
z
m
V
%
M
H
z
V
G
H
z
d
B
m
E
n
t
e
r
m
s
%
D
d
B
µ
V
D
+
/
-
3
6
9
N
o
p
p
m
W
C
.
F
2
5
8
Y
e
s
O
n
/
O
f
f
B
0
E
1
4
7
H
i
l
i
m
i
t
A
v
g
I
n
c
r
x
1
0
M
e
t
e
r
I
n
c
r
S
e
t
C
a
n
c
e
l
L
o
L
i
m
i
t
R
e
f
S
e
t
I
n
c
r
1
0
d
B
A
E
E
X
U
n
l
o
c
k
V
o
l
u
m
e
S
q
u
e
l
c
h
Push to Select
REFERENCE
I
n
t
e
r
n
a
l
E
x
t
e
r
n
a
l
LEDs
1
2
3