Harris Maxiva ULX - Output Faults List

6-10 888-2629-200 10/6/10
WARNING: Disconnect primary power prior to servicing.
Section 6 Diagnostics
Maxiva ULX COFDM Series
Table 6-4 Output Faults List
TYPE Description Fault Level or
Threshold
Transmitter
Action
Three
Strike
Available
in Life
Support
Cabinet
VSWR
(Reflected
Power Fault)
Cabinet
Reflected Power
has exceeded
10% of rated
power
Trip point is set at
VSWR = 1.9:1. Trip
point adjustable by
epot
RF MUTE, Fault
OFF after 3-
strike. The Time
interval between
strikes should be
about 3 seconds
YES YES
System
VSWR
(Reflected
Power Fault)
System Reflected
Power has
exceeded 10% of
rated power
Trip point is set at
VSWR = 1.9:1
(Foldback starts at
1.4:1). Trip point
adjustable by epot.
Foldback set point
adjustable by soft
-
ware
RF MUTE, Fault
OFF after 3-
strike. The Time
interval between
strikes should be
about 3 senconds
YES YES for trip
NO for Fold
-
back. Fold-
back routine
requires
PCM action
Cabinet For-
ward Power
Fault (Visual
Power in
Analog TV)
Cabinet Forward
Power has
exceeded 10% of
rated power
WARNING NO YES
YES
Cabinet
Aural Power
Fault (Ana
-
log TV only)
Aural Power is
below 50% of
rated power
WARNING NO NO
NO
System For-
ward Power
Fault
System Forward
Power has
exceeded 10% of
rated power
WARNING NO YES
YES
System Aural
Power Fault
(Analog TV
only)
Aural Power is
below 50% of
rated power
WARNING NO NO
NO