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ST
ART
HERE
1.
Check
the
P
ower
On
Sequence
See
the
INSPECT
THE
POWER
ON
SEQUENCE
in
the
chapter
4
for
checking
the
P
ower
On
Sequence
.
Check
the
A1
Eight
LEDs
There
are
eight
LEDs
on
the
A1
CPU
.
These
LEDs
should
be
in
the
pattern
shown
in
Figure
6-4
at
the
end
of
the
power
on
sequence
.
P
erform
the
following
procedure
to
check
the
A1
eight
LEDs
.
a.
Turn
the
analyzer
turn
o.
b.
Remove
the
bottom
cover
of
the
analyzer
.
c.
Turn
the
analyzer
power
on.
d.
Look
at
the
A1
eight
LEDs
.
Some
of
the
LEDs
light
during
the
power
on
sequence
.
At
the
end
of
the
power
on
sequence
,
the
LEDs
should
stay
in
the
pattern
shown
in
Figure
6-4.
If
the
LEDs
stay
in
the
other
pattern,
the
A1
CPU
is
probably
faulty
.
Replace
the
A1
CPU
.
Figure
6-4.
A1
Eight
LEDs'
P
attern
Digital
Control
T
roubleshooting
6-5
Summary of Contents for 4352B
Page 11: ......
Page 31: ......
Page 73: ......
Page 80: ...Figure 3 4 List Box Menu Adjustments and Correction Constants 3 7 ...
Page 82: ...Figure 3 6 Reference Frequency Adjustment Location Adjustments and Correction Constants 3 9 ...
Page 85: ...Figure 3 9 Third IF AMP GAIN Adjustment Location 3 12 Adjustments and Correction Constants ...
Page 103: ...Figure 4 1 Troubleshooting Organization 4 2 Overall T roubleshooting ...
Page 113: ......
Page 130: ...Figure 5 11 Power Supply Block Diagram 1 Power Supply T roubleshooting 5 17 ...
Page 131: ...Figure 5 12 Power Supply Block Diagram 2 5 18 Power Supply T roubleshooting ...
Page 132: ...Figure 5 13 Power Supply Block Diagram 3 Power Supply T roubleshooting 5 19 ...
Page 133: ......
Page 135: ...Figure 6 1 Digital Control Group Simpli ed Block Diagram 6 2 Digital Control T roubleshooting ...
Page 146: ...Figure 7 2 Source Group Troubleshooting Flow Source Group T roubleshooting 7 3 ...
Page 154: ...Figure 8 2 Receiver Group Troubleshooting Flow Receiver Group T roubleshooting 8 3 ...
Page 198: ...Figure 10 1 Power Supply Functional Group Simpli ed Block Diagram Theory of Operation 10 3 ...
Page 203: ...Figure 10 3 Digital Control Group Simpli ed Block Diagram 10 8 Theory of Operation ...
Page 269: ......
Page 272: ...Figure B 1 Power Cable Supplied Power Requirement B 3 ...
Page 273: ......