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Maintenance
23
Troubleshooting
General The troubleshooting instructions are intended to aid in fault
isolation. This is accomplished through the use of a
troubleshooting table.
First, locate the symptom(s) in the problem column of
Table 8. In some cases the same fault can have more than
one symptom and more than one possible remedy. Compare
the possible causes until you arrive at a suspected fault.
Once a fault has been isolated, repair or replace the defective
components.
NOTE: Always recalibrate the RF Power Analyst after
repairing the fault.
Table 8
Trouble-
shooting
PROBLEM POSSIBLE CAUSE REMEDY
Inaccurate
power readings
RF Power Analyst
uncalibrated
Recalibrate.
Defective Plug-in
Elements
Replace defective elements.
Intermittent connection
at the element wiper
Adjust the element wiper
contact. Refer to page 21.
Loose hold down catch Readjust catch to hold element
securely in place.
Worn line section Replace line section. Refer to
page 27.
Defect on Data
Acquisition PC board
assembly
Replace the PC board
assembly (attached to line
section). Refer to page 27 and
either page 31 or page 32.
High standing
waves
Dirty Connectors Clean the connectors.
Worn or damaged
connectors
Replace the connectors Refer
to page 27.
Foreign objects in line
section
Remove object from the line
section.
Short battery
life
115/230V switch in
wrong position
Set 115/230V switch to correct
position.
Damaged/worn batteries Replace the batteries.
Will not operate
from AC line
115/230V switch in
wrong position
Set 115/230V switch to correct
position.
Blown fuse Replace blown fuse (Figure 5,
page 7 and Figure 24,
page 30).
Defective line cord Repair or replace.