6
DOCNUMBER 8410
Document Issue 1.1
August 2015
Page 6–1
6
Maintaining the Amplifier
6.1 Clean the Amplifier Chassis 6–1
6.2 Replace Tubes and/or Fuses 6–2
6.3 Retune the Amplifier 6–3
!
IMPORTANT
•
The Alpha 8410 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.
•
The amplifier is equipped with a cover interlock switch that
removes primary power from the amplifier and a crowbar that
short-circuits high voltage to the chassis when the cover is lifted.
These interlocks protect against electric shock resulting from
accidental contact with the lethal voltages inside the amplifier.
The cover interlock is intended only as backup protection against
accidents. Never depend on it! Always disconnect the power cord
from the AC mains before removing the cover.
IMPORTANT:
Do not disable the interlock switch for any
reason.
6.1 Clean the Amplifier Chassis
Perform this procedure at least once a year.
Procedure 6-1
Clean the amplifier chassis
Step 1
Power down the amplifier.
Step 2
Clean the exterior with a mild liquid detergent. Do not use chemical
solvents, as these may severely damage the front panel or cabinet finish.
Never use an abrasive cleaner.
