Maintenance Philosophy - Alcatel MDR-8000 User Manual

RF flex coaxial cable requires special consideration. The electrical
characteristics of the coax can be affected if it is accidentally twisted
or bent. Provide mechanical support to prevent any weight or strain to
the coax and connector when connecting or disconnecting equipment.
Loosen the connectors at both ends of a coax section if one end must be
moved even slightly. SMA connectors should be secured in place finger-
tight, and then gently tightened using a torque wrench with a 5/16 in.
head set for 7 to 9 inch-pounds. The connectors should not be left fin-
gertight.
Ensure that all antennas are properly aligned and waveguide is in good physi-
cal condition.
Before performing procedures that might in any way affect transmission, it is
recommended that the person performing the procedure understand the FCC
Rules and Regulations pertaining to the equipment and be properly authorized
to operate the equipment.

MAINTENANCE PHILOSOPHY

5.2
This section provides information and procedures for equipment maintenance down to the
module level. Module repair is not covered in this manual. A replacement procedure for the
crystal oscillator subboard on the transmitter and receiver modules is provided to enable
future use of the local oscillator at a different frequency in another application or at
another location. Use the drawings in the appendix and those in the station drawing pack-
age to support the procedures in this section
The use of maintenance procedures in this section may result from failure of a
periodic check, an alarm indication, or unacceptable performance. These problems should
normally be resolved as shown in the maintenance philosophy flow chart (Figure 5-1).
5-2
CAUTION
Possibility of
Service
Interruption
Note
Note