Troubleshooting guide

Section 12–Tower Mounted Amplifi er Issues Remote Electrical Downtilt System Handbook
12-1 May 2009 Bulletin 639519 • Revision D
12.1 No Devices Found
• Verify that the TMA type supports AISG.
• If TMA type is E15S08P74, replace with TMA that supports AISG, or bypass TMA with AISG
home-run cable.
• Recycle power to PDU.
• Verify that smart bias tees and TMAs are properly oriented (misconnection to TMA can cause a
short on the coax).
• See Section 11 for smart bias tee issues.
Section 12
Tower Mounted Amplifier (TMA) Issues