CHPA SERIES
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4-1
Chapter 4
Initial Power On and Checkout
4.1 Overview
This chapter describes the procedures for turning on the CHPA for the first time. It also
describes the steps for initial checkout of the system, and for setup of the Remote and Computer
Interface (CIF) serial ports.
Before proceeding with the steps in this chapter, read it completely. Also read the next chapter,
“Operation,” to become familiar with normal operation of the CHPA.
Warning: The information presented in this chapter is addressed to
technicians who have specific training in, and knowledge of, high-power
amplifiers. Inappropriate use of the CHPA can cause harm to the operator
or equipment. Do not attempt the procedures outlined in this chapter
before becoming thoroughly familiar with its contents.
4.2 Pre-Power Procedures
Before applying prime AC power to the CHPA, verify that the following conditions are met:
•
The voltage of the station’s AC prime power matches those marked on the back label (208-
240 VAC).
•
A ground strap is connected from the station’s ground buss to the ground screw located on
the CHPA’s back panel.
•
All connections are tight, no wires are pinched, and no other hardware or circuit-card
assemblies have been loosened during shipment or handling.
•
The main power switch on the CHPA front panel is turned off.
•
The RF input and RF output are connected to a matched source and test load.
Note: Failure to verify these pre-power conditions may damage the CHPA
or cause it to malfunction. Operating the equipment before verifying these
items may also void the warranty.
