Motorola Astro Digital Mobile Radio Xtl5000 Basic 6881096c73 O Manual

							6881096C73-OJune 11, 2003
Disassembly/Reassembly Procedures: Replacement Procedures 8-15
13. : Remove the three PA screws using a T10 Torx bit.
Figure 8-15.  Removing the PA Screws The PA screws must be removed BEFORE the RF/DC 
retention clips or damage may occur to the PCB.
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8-16Disassembly/Reassembly Procedures: Replacement Procedures
14. Remove the RF/DC retention clips by gently prying them out with a flathead screwdriver. For 
leverage, use only the slots provided immediately adjacent to the clips.
Figure 8-16.  Removing the RF/DC Retention Clip (J2 Connector Side)
Figure 8-17.  Removing the RF/DC Retention Clip (Antenna Connector Side) 
						

							6881096C73-OJune 11, 2003
Disassembly/Reassembly Procedures: Replacement Procedures 8-17
15. Remove the main board by sliding a finger into the provided opening at the front of the 
chassis and gently pressing up on the 50-pin connector, lifting up the front of the PCB. 
Figure 8-18.  Pushing Up the Main Board
16. Then, slide the main board towards the front of the chassis and up and out. Handle the main 
board by the edges only, and store it in an antistatic bag.
Figure 8-19.  Lifting Out the Main Board 
						

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8-18Disassembly/Reassembly Procedures: Replacement Procedures
17. Remove the J2 rear accessory connector by sliding it out of the chassis wall.
.
Figure 8-20.  Removing the J2 Rear Accessory ConnectorDo not attempt to remove the J2 accessory connector by 
pulling on the flex. Doing so might damage the flex.
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							6881096C73-OJune 11, 2003
Disassembly/Reassembly Procedures: Replacement Procedures 8-19
8.2.6 Radio Reassembly
Use the procedure that follows to reassemble your radio.
1. Prior to reassembling the radio, inspect all seals and sealing surfaces for damage (nicks, 
cuts, etc.) or dirt. Refer to the exploded view bill of materials for the correct part numbers, and 
replace parts, as necessary. Reseat all seals on their respective parts.
Begin with the chassis. Thoroughly inspect the chassis shield gasketing for damage and 
verify all chassis thermal pads are in place and free of damage. See “Chassis Thermal Pad 
Replacement Procedure” on page 8-30 to replace damaged pads.
Figure 8-21.  Inspecting the Chassis Shield Gasketing and Thermal Pads
Thermal
PadsChassis 
Shield 
Gasketing 
						

							June 11, 20036881096C73-O
8-20Disassembly/Reassembly Procedures: Replacement Procedures
2. After inspecting and seating the seal properly on the connector, insert the J2 rear accessory 
connector into the chassis and slide it into place.
Figure 8-22.  Inserting the J2 Rear Accessory ConnectorDo not attempt to insert the J2 accessory connector by 
holding onto the flex. Doing so might damage the flex.
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							6881096C73-OJune 11, 2003
Disassembly/Reassembly Procedures: Replacement Procedures 8-21
3. Tilt the main board and slide it into place, taking care to line up the RF and DC connectors 
with the holes in the back of the chassis. Push back and down on the front of the main board 
to fully seat it.
Ensure that the main board alignment holes are positioned over the chassis alignment 
bosses and that the main board is fully seated.
Figure 8-23.  Inserting the Main Board into the Chassis
Do not leave the main board in the chassis for extended 
periods of time without the RF/DC retention clips, or damage 
to the board connectors may occur.
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8-22Disassembly/Reassembly Procedures: Replacement Procedures
4. Insert the RF/DC retention clips and fully seat them. The DC clip should be inserted first to 
properly locate the main board.
Figure 8-24.  Inserting the RF/DC Retention Clip (DC Side)
Figure 8-25.  Inserting the RF/DC Retention Clip (RF Side) 
						

							6881096C73-OJune 11, 2003
Disassembly/Reassembly Procedures: Replacement Procedures 8-23
5. Connect the J2 rear accessory connector flex to the PCB.
Figure 8-26.  Connecting the J2 Rear Accessory Connector Flex to the Main Board 
						

							June 11, 20036881096C73-O
8-24Disassembly/Reassembly Procedures: Replacement Procedures
6. Insert and torque the three PA screws to 6-8 in.-lbs. Start all three screws prior to torquing 
them down.
Figure 8-27.  Installing the PA Screws
7. Inspect the reverse polarity thermal pad located on the top cover, and then inspect and seat 
the main seal properly on the cover. Be careful to properly align the tab (see figure below).
Figure 8-28.  Inspecting the Thermal Pad and Installing the Cover Main Seal
Ta b
Thermal
Pad