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7. MAINTENANCE
7.1 CLEANING
In order to ensure adequate cooling of the amplifier, it is recommended to inspect the unit
weekly to verify that the air intake and exhaust are free of any obstruction. Clean the air intake
filter with a soft bristle as nessesary. Filter can be cleaned while the unit is in service (power on).
7.2 PRECAUTIONS
7.2.1 C
ONNECTION TO
Ensure that correct voltage (110 - 220)V AC is used for this rack-mount unit, see TABLE 3 at
page 17 & TABLE 6 at page 18.
7.2.2 RF R
ADIATION
To prevent bodily harm and dammage to equipment, ensure that the input and output RF ports
are terminated and properly fastened before connecting the amplifier to the line voltage. Note
that this amplifier has sufficient gain & power to cause destructive oscillation if the above
precaution is not taken.
7.2.3 N
-
-
ON
USER
SERVICEABLE
The rack-mount amplifier is serviceable at the module level only. Local service is limitted to
replacement of defective modules with maintenance spares. The repairs of separate modules
must be done at the factory or at a regional repair center.
7.3 FUSES AND CIRCUIT BREAKERS
7.3.1 F
USES
There is no user serviceable fuse in this rack-mount amplifier unit.
7.3.2 C
B
IRCUIT
REAKERS
The front panel power switch also acts as the main line circuit breaker. The breaker will trip only
under a major power supply fault.
L
V
INE
OLTAGE
H
AZARD
M
ODULES
ARMA-C250-CRM
43
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