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MDS 05-2818A01, Rev. C
MDS P-60/P-60 HL Reference Manual
47
5.0
SERVICING DATA
5.1 Introduction
This chapter contains information for keeping the packaged system in peak
operating condition, as well as procedures for performing minor field adjust-
ments and troubleshooting. This service information is intended to augment the
transceiver manual shipped with your system.
5.2 Preventive Maintenance
The packaged systems are designed for long life and trouble-free operation.
However, because these units are frequently installed in outdoor environments,
periodic inspection of the equipment is more important than it would be for
equipment mounted indoors.
The unit should be checked occasionally for loose or corroded hardware, loose
cable connections, and damage to the exterior housing. The door seals and
cable entrances should also be checked for signs of leakage or other damage.
When performing preventive maintenance, it is also a good idea to check
related equipment, such as the antenna system and remote terminal unit, for
signs of damage or loose connections. Consult the applicable instruction
manual(s) for maintenance recommendations.
The transceiver instruction manual contains many transceiver maintenance
checks that can be made with an HHT. Specific items to check include RF
power output, received signal strength (RSSI), supply voltage and current
draw.
5.3 Fuse Replacement
The packaged systems are equipped with several fuses to guard against
over-current conditions. When a fuse blows, you should try to find the cause
of the problem before replacing the fuse. A blown fuse could be caused by a
short circuit, power surge or nearby lightning discharge.
Table 8 on page 48
contains a list of all fuses used in the packaged radio sys-
tems. In the MDS
P-60, all fuses are located on the Interface/Utility Board. In
the MDS
P-50, there are two fuses installed on the Interface/Utility Board and
one fuse installed in the battery cabling (inline fuse). Additionally, there is a
fuse
inside
all transceivers. (Refer to the applicable transceiver manual for
replacement instructions.)
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