Micom RM125 - Page 26

Table 5. 1 kW PA Fault and Warning Messages
Type Message Meaning Corrective Actions
AMP#1
AMP#2
AMP#3
AMP#4
The corresponding amplifier module
does not operate, for example, because
its supply line fuse is blown, or a fault in
the module itself.
1 kW amplifier is in the bypass mode
and cannot transmit
Service is required
RF IN OVERLOAD
Excessive drive power supplied to the RF
IN input.
1 kW amplifier is in the bypass mode
and will not transmit until the condition
is corrected
When using the amplifier with a
driver other than RM125/RM125R,
check the maximum transmit power
of the driver unit.
When using the RM125/RM125R,
first check for proper connection of
the control cable between the
RM125/RM125R AMP-CONT
connector and the 1 kW amplifier
EXCITER CONTROL connector. If
problem persists, service is required
(adjustment of operating conditions
using the MONITOR program)
PWR OUT LATCH
Technical problem related to the
harmonic filter.
1 kW amplifier is in the bypass mode
and cannot transmit
Service is required
Fault
TEMP OVERHEAT
Excessive internal temperature.
1 kW amplifier is in the bypass mode
and cannot transmit until it cools
Wait for the amplifier to cool.
Check that the air intake vents and
exhaust vents are free. If condition
recurs, power down the amplifier
and clean the dust filters (the filters
are reached after removing the
intake covers, which are fastened
by four screws each)
PWR OUT
REDUCED
Internal temperature is too high.
1 kW amplifier transmits at reduced
(half) power as long as problem persists
See TEMP OVERHEAT
Warning
HIGH VSWR
Excessive reflected power.
1 kW amplifier is in the bypass mode
and will not transmit until the condition
is corrected
Check the antenna feed cable,
starting from the RF OUT
connector, and up to the antenna.
Also check that no damage is
evident to the cables and to the
antenna itself
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