Maintenance 3-5
4. Separate the chassis from the internal electronics front cover assembly as follows:
a. Insert a small, 3/16” flat-blade screwdriver, or similar instrument, in between the thin
remaining wall and the ch assis at the botto m of the radio . Do not mar the O-rin g sealing ar ea
on the housing.
b. Slowly pry the bottom of the chassis from the cover by pushing the 3/16” flat-blade
screwdriver down, and rotating the handle of the tool over and behind the base of the radio.
This prying action forces the thin inner pla stic wall toward the base of the radi o, releasing the
two chassis base t abs.
Figure 3-3: Chassis Removal
6. Lay the chassis down. Rotate the front cover backward and slightly away from the chassis.
5. Lift the latches on the main circuit board to release the flexes from their connectors.
Figure 3-4: Unlatch Flex Connectors
CAUTION: Marring the fr ont cov er O-ring s ealing a rea will preve nt t he radio f rom
sealing properly.
NOTE: Flexible ribbon circuits (flexes) con necting the front cover assembly and the
chassis prevent you from completely sep arating the two unit s. Displa y radios and
radios with option boards ha ve two flexes.
Radio
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C
a u t i o
n
Flex Connector
Latches