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© 2015 FlexRadio Systems, v1.0.2
Preparing for the FLEX-6300 ATU Installation
If the FLEX-6300 is powered on, power it off by pressing the Power Button and then remove DC power
from the radio. Disconnect all cables.
Use a flat, well-lighted surface such as a table or work bench to perform the ATU installation.
You may want to use several small containers to store and organize the chassis screws that will be
removed and re-installed as part of the ATU installation.
Make sure to observe basic ESD control procedures to prevent static discharges that may damage
sensitive electronics components inside the radio, such as grounding yourself to reduce static electrical
build up.
Removing the FLEX-6300 Chassis Cover
The FLEX-6300 chassis cover must be removed before installing the ATU assembly.
Removing the Front Side Cover and Top Cover Screws
Remove the 4-40 X ½”
Front Side Cover
TORX screw
using the long portion of the “L” TORX wrench.
Retain the Front Side Cover TORX screw for re-installation. The image below shows the removal of the
right Front Side Cover TORX screw.
Repeat the previous procedure for removing the TORX front side cover screw on the left side of the FLEX-
6300, retaining the screws for re-installation.
