Elecraft KPA3 Manual - Manual (Page 2)

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Contents
Introduction ............................................................................................................................................... 3
Customer Service and Support ............................................................................................................................ 3
Technical Assistance ....................................................................................................................................... 3
Repair / Alignment Service ............................................................................................................................. 3
Preventing Electrostatic Discharge Damage ............................................................................................ 4
How ESD Damage Occurs .................................................................................................................................. 4
Preventing ESD Damage ..................................................................................................................................... 4
Preparing for Installation .......................................................................................................................... 5
Tools Required .................................................................................................................................................... 5
Parts Included ...................................................................................................................................................... 6
Installation Procedure ............................................................................................................................... 7
Removing the KRX3 Subreceiver Module ......................................................................................................... 9
Removing the KNB3 Module ........................................................................................................................... 10
Installing the KPA3 Shield ................................................................................................................................ 11
Installing the KPAIO3 Interface Module .......................................................................................................... 12
Assembling the Fan Panel ................................................................................................................................. 14
Installing the KPA3 Amplifier Module ............................................................................................................. 16
Installing the Fan Panel ..................................................................................................................................... 16
Replacing the KNB3 Module ............................................................................................................................ 18
Replacing the KRX3 Module ............................................................................................................................ 18
Replacing the Covers ........................................................................................................................................ 19
Configuring and Calibrating the KPA3 ............................................................................................................. 20
Circuit Description .................................................................................................................................. 21
KPAIO3 ............................................................................................................................................................ 21
KPA3 Fan Panel ................................................................................................................................................ 21
KPA3 Power Amplifier ..................................................................................................................................... 21