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Appendix C: Operator Troubleshooting
C–2
1503C MTDR User Manual
Preset front panel
and turn the
power on.
Is
there a
greed display?
YES
NO
Is the
power source a
battery?
Did
Initializing"
message appear
on LCD?
YES
NO
YES
NO
Check line voltage switch for correct
setting and change if necessary.
With VOM, check wall outlet voltage
and plug in somewhere else if no
voltage. Check fuse and power cord
for near zero Ohms.
Turn instrument
off immediately to
avoid possible
damage to LCD
display.
If error
message(s)
appear, follow
the displayed
instructions.
Using VOM,
check for
near zero Ohms
in fuse.
Is
waveform
missing, erratic or
badly
distorted?
NO
YES
Perform initial
operator
performance
verification
checks.
Did instrument
pass checks?
YES
NO
DO NOT USE INSTRUMENT.
Serious problems need repair.
Refer to
Troubleshooting procedures.
Refer to Option Port
and Accessories TroubleĆ
shooting procedure.
If no accessories, then OK
to use instrument.
Replace fuse.
YES
NO
Is
fuse
OK?
Operator Troubleshooting
(with cases on)
Summary of Contents for 1503C
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Page 92: ...Appendix A Specifications A 6 1503C MTDR User Manual...
Page 104: ...Appendis B Operator Performance Checks B 12 1503C MTDR User Manual...
Page 122: ...Glossary Glossary 6 1503C MTDR User Manual...
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