10/6/10 888-2629-200 6-3
WARNING: Disconnect primary power prior to servicing.
Section 6 Diagnostics
Maxiva ULX COFDM Series
c. BACK - Will take you back to the System main menu.
NOTE:
Tables 6-1 and 6-2 give a complete listing of all possible faults in the Maxiva
transmitter. They also give a brief description of each fault, the trip point and the
transmitter action taken in response to the fault.
Figure 6-2 Fault Log Screen
6.3 Maxiva Three-Strike Fault Actions
6.3.1 Reflected Power Faults
The TCU monitors reflected power at the Cabinet output and at the System output.
When the reflected power level (typically 10% of the rated power or a 1.9:1 VSWR) is
exceeded the TCU generates an RF MUTE. If after three attempts to restart (three
strikes) subsequent faults occur, the transmitter will turn OFF and operator intervention
will be needed to turn it back ON. The three strike counter resets after 30 seconds with
no faults.
Reflected power faults that initiate a three strike procedure are:
• Cabinet Reflected Power
• System Reflected Power
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