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GENERAL
Troubleshooting the Model 1140A, except for a few components, is limited to the assembly
level. Because it employs surface-mount technology, special equipment, often not available, is
required to troubleshoot to the component level. Additionally, there are many components that if
changed would necessitate special testing done only at the factory.
This section is arranged by possible faults that the user may encounter and possible solutions for
those faults. If the solution to a problem requires component or assembly replacement, refer to
Section IX
for specific instructions.
Ectron Corporation Technical Support can be contacted at 800-732-8159 for additional
information and assistance.
POTENTIAL PROBLEMS
Model 1140A Will Not Power Up
Fault: Model 1140A will not operate under dc power (with battery installed)
Solution: Plug unit into ac power to charge battery pack. This typically takes less
than three hours.
Fault: Model 1140A will not operate under dc power for at least six hours
Solution: Plug unit into ac power to charge battery pack. If the battery charge still
will not last more than six hours, the battery pack should be replaced. If the
operating screen displays BATT FLT, replace the battery pack. If the annunciator
displays TEMP FLT, turn power to the unit off to allow it to cool down and retry
charging the battery pack. The battery pack must be within a certain temperature
range (centered around 25°C) to commence charging.
Refer to the procedure for
Fault: Model 1140A will not operate under ac power
Equipment required: Digital multimeter (DMM) capable of measuring ac and dc
voltages.
SECTION VIII
TROUBLESHOOTING
8
Battery
In the following troubleshooting step, ac voltage
that can be harmful or lethal is present. Use proper
precautions to avoid coming into direct contact with
the charging supply barrier strip.
Removal.
WARNING
8-1
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