Sprint User Manual
3G Indoor Repeater
19
4.2 Troubleshooting
In case of abnormal operation, technician should diagnose abnormality via remote access or
directly connecting to repeater using Ethernet cable. If technician is required to conduct repairs
due to major alarm, repeater should first be powered off, and then technician should prepare
the proper measurement equipment before trying to fix the problem. In most cases of major
repairs, GST will simply replace the unit and conduct repairs at the appropriate facility.
4.2.1 Necessary Testing and Measuring Equipment
a. RF Power Meter: 10Watt Max, 50ohm
b. Signal Generator: 3GHz
c. Spectrum Analyzer: 3GHz
d. Multi-Meter
4.2.2 Notice
a. Troubleshooting should be performed by a trained technician.
b. Parts that seem to be not used should not be disassembled.
c. While troubleshooting, technician should use attenuator to check RF Signal output.
4.2.3 Simple Troubleshooting Method
a. Verify LED Status, both on external LED’s as well as internal module LED’s
- Normal operation: Green light On. Alarming: Red LED on
b. Technician should check external and internal connectors to ensure that all connections are
tightly secure. These connectors should be cleaned regularly.
c . If technician thinks there is a serious problem, call after sales team for over-the-
phone technical support. 1-866-9-GST-USA (1-866-947-8872)
