Motorola PRO5450 Panduan Servis Dasar - Halaman 20

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3-4

3.6

Radio Disassembly — Detailed

The paragraph that follow describe how to disassemble the radio. This includes the following major

components:

Front cover

Chassis

Keypad,

Keypad/option board

Display assembly

Speaker, microphone, universal ﬂex connector

PTT assembly

1. Turn off the radio.

2. Pull down on the two battery-release buttons.

3. With the buttons pulled down, the top of the battery will fall from the radio.

4. Remove the battery completely from the radio.

5. Remove the antenna.

6. Using the chassis and knob opener tool, remove the volume and channel selector knobs off of

their shafts as shown in Figure 3-2.

NOTE Both knobs slide on and off. However, they are supposed to ﬁt very tightly on their

shafts.

7. Separate the chassis from the internal electronics front cover assembly by inserting the chassis

and knob opener tool in between the thin retaining wall and the chassis at the bottom of the radio

as shown in Figure 3-3. Do not mar the housing O-ring sealing area.

8. Slowly pry the bottom of the chassis from the cover by pushing the chassis and knob opener tool

back while 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.

Figure 3-1. Battery Removal

Radio Disassembly — Detailed

Battery

Release

Buttons

Battery