Figure 2-3: Chassis Removal; Figure 2-4: Unlatch Flex Connectors - Motorola PR860 Basic Service Manual

Maintenance
5. 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 chassis at the bottom of the radio. Do not mar the O-ring sealing area
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 plastic wall toward the base of the radio, releasing the
two chassis base tabs.
CAUTION: Marring the front cover O-ring sealing area will prevent the radio from
sealing properly.
6. Lay the chassis down. Rotate the front cover backward and slightly away from the chassis.
NOTE: Flexible ribbon circuits (flexes) connecting the front cover assembly and the
chassis prevent you from completely separating the two units.
7. Lift the latches on the main circuit board to release the flexes from their connectors.
Radio

Figure 2-3: Chassis Removal

Flex Connector

Figure 2-4: Unlatch Flex Connectors

Latches
2-5