14
Dead circuit Open circuit or
short circuit
Break the circuit down into sections and check
each section for continuity.
(2b) When using the
test set in Monitor
mode, or with the
test set discon-
nected, the voltage
will be lower than
normal.
(2b) This indicates a partial short circuit.
(2a) When using the
test set in Monitor
mode, or with the
test set discon-
nected, the voltage
will be normal.
(2a) This indicates a high-resistance fault,
which restricts the amount of current
flowing through the circuit. Possible faults
include a poor connection, wet cables, or a
line extender failure.
Distortion, dialing
difficulty
(1) When using the
test set in Talk
mode, the voltage
will be lower than
normal.
Symptom*
Possible Cause /
Troubleshooting Step
Explanation
*Wet cables may cause most of these symptoms and may cause multiple symptoms to appear
at the same time.
Troubleshooting (cont’d)
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