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6. Descriptions on maintenance
6.1. Faults
1. When 220V AC is connected, the power indicator light is
not on.
2. The power supply is normal, but the Uplink and
Downlink power indicator lights are not on even with the
signals received.
6.2. Troubleshooting
1. When the 220V AC is powered, the power indicator light
is not on. Firstly, check if the AC socket is in good
conditions and then check if the 220V power is in the
normal state with a multimeter at the voltage of AC
750V.
2. If the power supply is confirmed to be normal and the
signal is applicable, the Uplink and Downlink power
indicator lights are not on, check if cables are correctly
connected, and if the position and orientation of the
antenna are appropriate.
3. The above-mentioned check methods are mainly
applied for jobsite maintenance. In general, only a
multimeter is used instead of large size instruments.
Please contact the manufacturer if the malfunction still
cannot
be
removed
after
implementing
the
above-mentioned methods of 1 and 2. HP8713D
network analyzer may be used for testing in the process
of maintaining in the labs or production plants. Different
malfunctions shall adopt different methods.
Service is forever
This User Manual concerns the signal amplifier product
series of our company. Some omissions are inevitable due
to insufficient preparing time. For any question, please
contact us for correction. We are ready for reply and serve
you wholeheartedly.
We sincerely hope that this User’s Manual will bring you
convenience, the changes of the standards, technical
requirements or varieties of product dimensions involved in
this User Manual may result in revision without notification
to you as technology develops and time goes by.
