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3-18
3.9.5 Control Top Disassembly
1. To remove the control top assembly, place a screwdriver next to the antenna boss, and pry it
against the control top escutcheon. This will lift the control top escutcheon away from its
double-sided adhesive. Grab the double-sided adhesive near the volume potentiometer, and lift it
away.
2. Remove the control top seal, emergency button, and transmit light pipe.
3.10 EX600 / EX600•XLS Radio Reassembly — Detailed
3.10.1 Control Top Reassembly
1. Replace transmit light pipe, control top seal and top adhesive.
2. Peel off the liners from a new control top escutcheon, and place it in the recess in the front cover.
Press the control top escutcheon tightly against the adhesive.
3.10.2 Speaker, Microphone, and Universal Connector Flex Reassembly
1. Feed the universal connector stiffener of the speaker-microphone flex assembly through the
opening in the side wall of the front cover.
2. Peel-off the adhesive liner on the back of the universal connector stiffener of the flex circuit.
Attach the flex stiffener to the front cover using the guide pins for correct alignment.
3. Replace the universal connector escutcheon. Make sure that all the connector openings align
with the gold pads on the flex circuit.
4. Peel off the adhesive liner on the speaker rubber.
5. Align the top notch in the speaker at the twelve o'clock position with the tab on the front cover.
(See Figure 3-14.) Push down the speaker until the two bottom notches fit into the catches on the
housing.
3.10.3 Chassis Assembly Reassembly
1. Slide on the ground contact (if necessary) on the top corner boss of the chassis.
2. Replace the O-ring. The tabs on the O-ring should reach around the chassis and point down.
3. Stretch the O-ring to place it into the retaining pocket at the bottom end of the chassis.
When properly assembled, the retainers on the O-ring should align with the slots on the
NOTE
chassis. If this is not the case, remove and replace the O-ring until it is aligned with the
chassis and completely seated in place around the perimeter.
4. Ensure that the antenna nut insulator is correctly replaced by pushing it all the way to the top of
the antenna nut.
5. Replace the battery contact seal (if necessary) surrounding the battery contact.
6. Place the main circuit board straight down on top of the chassis.
NOTE
Be sure the battery contact seal protrudes through the chassis and is not pinched under the
chassis.
7. Use the Philips head screwdriver to fasten the screws holding the main board to the chassis.
EX600 / EX600•XLS Radio Reassembly — Detailed
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