Motorola Gp300 Basic 68p64115b18b Manual

Radio Disassembly—Detailed3-7
6.3 Keypad, Display, and Keypad/Option Board Disassembly
1.If the disassembly of the keypad, the keypad printed circuit board, or the display is required,
lift the microphone flex circuit up, and carefully remove the microphone and its boot from the
front cover pocket. (See Figure 3-6.)
2.Lay this flex circuit to one side.
3.To remove the keypad retainer shield:
a. Insert the tip of a“penknife size,”flat blade screwdriver in the opening at the end of the
keypad retainer arm...

3-8MAINTENANCE
7.The keypad/option board, and the keypad, can be removed without the use of tools.
6.4 Speaker, Microphone, and Universal Connector Flex Disassembly
1.Turn the screw at the bottom of the dustcover counterclockwise with your fingers. Lift the dust-
cover out of its pocket.
2.Using a screwdriver, push down on the portion of the speaker retainer bracket pointing toward
the bottom of the radio. Then, remove the retainer by slightly pushing it toward the top of the
radio until you slide it...

Radio Disassembly—Detailed3-9
6.After the universal connector tail of the speaker-microphone assembly is removed, the
assembly can be completely removed. If it is necessary to replace the speaker or
microphone, or both, do it while the flex circuit is removed from the front cover. When
reassembling the microphone in its boot, make sure the microphone port faces the round hole
in the bottom of the boot.
6.5 PTT Disassembly
1.If required, the PTT bezel, and the PTT seal assembly, can be disassembled using...

3-10MAINTENANCE
6.6 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.
7.0 Radio Reassembly — Detailed
7.1 PTT Reassembly
1.Replace transmit light pipe and control top...

Radio Reassembly—Detailed3-11
3.Insert the“top hooks”of the keypad retainer into the slots below the speaker (above the
display) in the front cover. Snap all four of the retainer arm tabs in place in the front cover.
4.Re-insert the microphone and boot into the pocket in the front cover.
5.Lay the speaker-microphone flex on top of keypad/option board retainer.
7.5 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...

3-12MAINTENANCE
7.6 Chassis and Front Cover Reassembly
1.Align the chassis assembly end-to-end with the front cover assembly.
2.Insert the tails of the flex circuits into their respective connectors at the bottom of the front
cover.
3.Push down the latches on the connectors to hold the flex circuits to the main board.
4.Slide the volume potentiometer and frequency switch shafts into their respective holes in the
front cover.
5.Push the chassis assembly completely into the top of the front cover until it...

Option Board Installation3-13
6.Reassemble the option board to the front cover assembly.
7.Insert the display flex circuit into the connector on the option board.
8.Insert the jumper flex circuit into the connector on the option board. Notice the orientation of
the flex circuit. Arrows on the jumper flex point to the correct way of inserting the flex into the
connector.
9.Replace the retainer by placing the two top hooks into the slots below the speaker in the front
cover; then, pivot the retainer into...

3-14MAINTENANCE
9.0 Mechanical Views and Parts Lists
9.1 GP320/GP340
Figure 3-13Radio Exploded Mechanical View (GP320/GP340)
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Mechanical Views and Parts Lists3-15
*It is recommended that if any of these
components need replacing, all three new
components should be ordered at the same time
to avoid possible mis-match of parts.
ItemMotorola
Par t
NumberDescription
1See Chapter
6Antenna
2 3680529Z01 Knob, Volume
33680530Z01Knob, Frequency
4 1380525Z01
1380525Z02Escutcheon, Top - GP340
Escutcheon, Top - GP320
53380644Z01Escutcheon, Label
6 3280533Z01
3280533Z02Seal, Control Top - GP340
Seal, Control Top - GP320
76180527Z01Litepipe,...

3-16MAINTENANCE
9.2 GP360/GP380
Figure 3-14Radio Exploded Mechanical View (GP360/GP380)
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3132
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