Motorola Gm300 Basic 68p64115b51 Manual

Radio Disassembly - Detailed3-5
Figure 3-2Flexible Connection Removal
4. Remove the flexible connection from the socket on the control head board.
6.2 Top Cover Removal
1. Insert the dismantling tool in the middle of the radio assembly side groove as shown in
Figure 3-3.
2. Press on the dismantling tool until the snap connectors on the side of the cover release from
the radio chassis.
3. Lift the top cover from the chassis.
Figure 3-3To p C o v e r R e m o v a l .
Flexible
Connection
ZWG0130210-O...

3-6MAINTENANCE
6.3 Transceiver Board Removal
1. Remove the screws securing the diecast cover to the chassis, using the T20 TORX™ driver
asshowninFigure3-4.
2. Lift the cover from the chassis.
Figure 3-4Diecast Cover Removal.
3. Slowly lift the transceiver board on the edge at the front of the radio (the edge that mates with
the control head) and pull gently toward the front of the radio as shown in Figure 3-5. Take
care to slide the antenna connector and power connector out of the chassis towards the...

Radio Disassembly - Detailed3-7
6.4 Disassembly of Control Head - GM340 (without display)
1. To dismount the control head housing from the back housing, insert the dismantling tool in the
groove between the two housings as shown in Figure 3-6.
Figure 3-6Control Head Back Housing Removal
2. Press the dismantling tool until the snap connectors on the side of the back housing release
from the control head.
3. Disconnect the speaker socket.
Figure 3-7Control Head Board Removal
4. Remove the board from the...

3-8MAINTENANCE
Figure 3-8Board, Keypad and Speaker Removal
6. Remove the speaker from the control head housing.
6.5 Disassembly of Control Heads - GM360 and GM380 (with display)
1. Dismount the control head housing from the back housing as described for control heads
without displays, Figure 3-6 and 3-7.
2. On the GM360, disconnect the speaker socket and pull out the speaker (with speaker tube)
by stretching the control head housing, Figure 3-9.
Figure 3-9Speaker and Speaker Tube Removal
3. Remove the...

Radio Assembly3-9
5. Remove the display and the top and bottom elastomeric connectors from the control head
housing (GM360 only).
7.0 Radio Assembly
7.1 Control Head - GM340
1. Locate the speaker in the control head and press it into place as shown in Figure 3-8.
2. Insert the keypad into the control head ensuring that the keypad keys and connector cut-out fit
correctly.
3. On the board, rotate the on/off control spindle fully counter-clockwise.
4. Also, rotate the volume knob on the housing fully...

3-10MAINTENANCE
7.3 Radio Chassis and Transceiver Board
1. Inspect the transceiver board chassis and if required reapply thermal grease to the heatsink
area on the chassis and heat dissipating devices. You may have to remove damaged thermal
pads from the chassis and devices prior to applying the grease.
2. Inser t the transceiver board at an angle (approximately 30°) into the chassis taking care to
slide the antenna connector and accessory connector into their cut-outs in the chassis.
3. Lower the...

Radio Exploded Mechanical Views and Parts Lists 3-11
8.0 Radio Exploded Mechanical Views and Parts Lists
8.1 Radio Assembly - 25W Models
Figure 3-10Radio Assembly - 25W Models
Ta b l e 3 - 1Radio Assembly Parts List - 25W Models
Item No. Description Part Number
1Chassis 25W2786082B02
2 Gasket, Controlhead 3202620Y01
3Main PCB (items 4 to 10 included)
4 Antenna Connector with Gasket, BNC 0986166B01
5Power Connector0986165B01
6 Connector 20 PIN 0986105B01
7Connector Assembly2886122B02
8 Gasket Cover...

3-12MAINTENANCE
8.2 Radio Assembly - 60W Models
Figure 3-11Radio Assembly 60W Models
Ta b l e 3 - 2Radio Assembly Parts List - 60W Models
Item No. Description Part Number
1Chassis 60W2786149B01
2 Gasket, Controlhead 3202620Y01
3Main PCB (items 4, 5 and 8 included)
4 Antenna Connector, Mini UHF 0986166B02
5Power Connector0986165B01
6 Connector 20 PIN 0986105B01
7Connector Assembly2886122B01
8 Gasket Cover, Connector 3202607Y01
9Connector1580922V01
10 Gasket Accessory Connector 3202606Y01
11Gasket Cover...

Radio Exploded Mechanical Views and Parts Lists 3-13
8.3 Control Head - GM340
Figure 3-12Control Head GM340
Ta b l e 3 - 3Control Head GM340 Parts List
Item noDescriptionPart No
1Housing Front, including:
Gasket, Lens, Lightguide1586086B01
2Knob, Volume3686098B02
3Label1364279B13
4Speaker5086126B01
5Keypad, including
Keypad Button7586089B01
3886133B--
6PCB KitGLN7350_
7Potentiometer1805911V02
810 PIN Microphone Jack2864287B01
9Flex 12 Position Connector
(Controlhead to Radio)8486127B01
10Backhousing,...

3-14MAINTENANCE
8.4 Control Head - GM360
Figure 3-13Control head - GM360
Ta b l e 3 - 4Control Head GM360 Parts List
Item no Description Part No.
1Housing Front
Gasket, Lens, Lightguide1586088B01
2 Knob, Volume 3686098B02
3Label1364279B14
4 Speaker 5086126B01
5Tube, Speaker with Gasket3786107B01
6 Keypad, including:
Keypad Button7586091B02
3886134B--
7LCD Glass7286104B01
8 Frame LCD 0786099B01
9Conn. Elastomeric (Top and Bottom)2886130B01
2886130B02
10 Back Housing, including: 1586093B02
Back Housing,...