RF Concepts LLC PA-77DF User Manual

Page of 86
RF Concepts, LLC
Product Release 1
7
DOCNUMBER 9500
Document Issue 1.1
February 2010
Page 7–1
Maintaining and Upgrading the Amplifier
!
IMPORTANT
The Alpha 9500 is extremely easy to set up, operate, and 
maintain. However, failure to carry out each procedure exactly as 
described in this manual is likely to lead to amplifier damage, 
which is not covered under warranty. Damage to other station 
equipment may also result.
Do not apply oil or grease to any amplifier components. There are 
no user-accessible lubrication points in the amplifier.
7.1  Clean the Chassis
Procedure 7-1  Clean the amplifier
Step 1 
Power down the amplifier.
Step 2 
Disconnect the AC line cord from the power source and lift the cover.
WARNING
!
WARNING!  Disconnect the AC line cord from the power source 
before lifting the cover for any reason.
Step 3 
Clean the interior, particularly high-voltage areas, with a vacuum cleaner 
and a soft bristle brush frequently enough to prevent visible accumulation 
of dust.
Step 4 
Clean the exterior with a mild household liquid detergent. Do not use 
chemical solvents, as these may severely damage the front panel or 
cabinet finish. Never use an abrasive cleaner.
Step 5 
In extremely dusty conditions, secure a thin air filter of the type used for 
window air conditioners across the air intake on the rear panel.