Motorola Gp1280 Basic 68p64115b27a 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
dustcover 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 past...

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
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 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.
4.Ensure that the antenna nut...

3-12MAINTENANCE
5.Push the chassis assembly completely into the top of the front cover until it settles in place.
6.Be sure the O-ring is properly seated.
7.Snap the bottom of the chassis into the front cover.
8.Reassemble the knobs, dust cover, antenna, and battery.
8.0 Option Board Installation
1.With the keypad retainer removed, the keypad backer board can be removed without the use
of tools.
2.Remove the jumper flex from the connector on the keypad board. Notice the orientation of the
flex to the...

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 View and Parts List
9.1 GP1280 Exploded View and Parts List
Figure 3-13GP1280 Radio Exploded View
1
2
3
4
5
6
7
8
910
11
121314
15
1617
18
19
20
21
22
2324
2526
2728
29
30
3132
33
3435
3637
384041
42
43
44 39 

Mechanical View and Parts List3-15
ItemMotorola
Part
NumberDescription
1See Chapter 6Antenna
2 3280529Z01 Knob, Volume
33280530Z01Knob, Frequency
4 1380525Z01 Escutcheon, Top (16CH)
1380525Z03Escutcheon, Top (Dotted)
5 3380644Z01 Escutcheon, Label
63280533Z01Seal, Control Top
7 6180527Z01 Litepipe, Tx
81364279B09Nameplate, GP1280
9 1586059A01 Dust Cover, Univ Conn
101386058A01Escutcheon, Univ Flex
11 1580666Z05 Front Cover
121380649Z01*Escutcheon, FM
13 7580532Z01 Keypad, Side Control
141380528Z01Bezel,...

3-16MAINTENANCE
10.0 Service Aids
Table 3-1 lists the service aids recommended for working on the GP1280 Radio. While all of these
items are available from Motorola, most are standard shop equipment items, and any equivalent
item capable of the same performance may be substituted for the item listed.
Ta b l e 3 - 1Service Aids
Motorola
Par t No.Description Application
RLN4460_Por table Test SetEnables connection to the audio/accessory
jack. Allows switching for radio testing.
RKN4075_ Ribless Programming...