User's Manual

APEX 1900-24 USER MANUAL V1.0.00 Tech Support: 1-888-317-8766
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5. Troubleshooting
Before contacting your service dealer, please make sure you refer to the following guidelines. If
the APEX1900-24 repeater does not work normally after completing the following
troubleshooting, please contact your local dealer or R-tron America’s Tech support line (1-888-
31R-TRON).
The alarm information is displayed by the LED lights on the APEX1900-24 repeater.
Problem Cause Solution
No LED on Check the power cord for secure connection
The mobile phone is
not working well.
Check if the power is ON.
Check if the DL Amplifier and the UL Amplifier
of parameter Status are displayed as “ON”
1. Gain, Input/ Output
power or DC Current
are changed randomly
under operating of DL
ALC, UL ALC and ASD.
2. Over isolation
attenuation range.
Oscillation
a. Turn off the repeater.
b. Measure the isolation and verify if the
isolation between the donor antenna and the
service antenna is enough for the repeater.
Refer to the note on page 19.
If the measured isolation value is greater than
the required isolation value, turn Power On.
The red light
Turns on.
Check if DL Input Power, DL Output Power, UL
Output Power, Temperature, DC Voltage, DC
Current is out of range.
Especially, if the Input Power or Output Power
is out of range, please contact.
Technical Support
Web site: www.r-tronamerica.com
Toll Free: 888-317-8766