12/20/11 888-2595-001 5-1
WARNING: Disconnect primary power prior to servicing.
ZX Series
Section 5
Maintenance and
Alignments
5
5.1 Introduction
This section provides maintenance and alignment information for qualified technical
personnel and is divided into four principal parts.
The first part of this section provides a general overview of good maintenance practices.
The second part of this section provides basic maintenance procedures for the operator
or first-level technician:
Basic Procedures
Power amplifier module swap
Power supply module swap
Air filter replacement
PA module heatsink cleaning
The third part of this section provides advanced maintenance procedures for the chief
engineer / lead technician:
Advanced Procedures
Advanced functional check
APC power level set
Forward power meter calibration
Reverse power meter calibration
Reverse power foldback threshold adjust
Periodic cleaning and inspection
Service one PA while other is one air
Check amplifier balance
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