Motorola Mth500 Basic 6802963c65 Manual

21
MTH500 Portable Radio Basic Service Manual  - PROGRAMMING THE RADIO
5. Press “Yes” icon.
Note:The Codeplug is now being written into the radio. A progress bar is dis-
played on the computer screen showing the writing status.
After a successful writing, the message “The Operation Was Successful” 
appears on the computer screen.
6. Press the OK button.
Application Programming
1. On the menu bar click “Tools”, “Write Software”.
2. Press “Continue” icon.
Note:The Codeplug reads data from the radio. A...

PROGRAMMING THE RADIO:  Manual Mode Testing
22
Manual Mode Testing
Preparation for Testing
1. Verify that the radio is turned off.
2. Press the “4”, “5” and “6” keys together and then, press the On/Off key to turn 
the radio on.
3. The display shows “LCD Test Press Any Key To Proceed”.
TESTS
Note: Any key that will be pressed will cause the test to advance from one step to 
the next. 
LCD Display Test
1. Press any key consecutively. The display shows horizontal lines that becomes 
thicker with every key...

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MTH500 Portable Radio Basic Service Manual  - PROGRAMMING THE RADIO
8. Press any key, the LED located on the top of the radio (near the antenna), 
turns ON, and the two halves of this LED starts blinking with RED and Green 
lights.
9. Press any key again. The display shows “Backlight On” and the display back-
light is On.
10. Press any key again. The display shows “Speaker Tone Test”, a tone is heard 
via the speaker.
11. Press any key again. The display shows “Earpiece Tone Test”, a tone is heard...

PROGRAMMING THE RADIO:  TESTS
24
•Verify that the battery charger is in progress (the process advance is indicated 
on the Battery Strength icon).
Press the “ON/OFF” key. The radio should turn OFF. 

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MTH500 Portable Radio Basic Service Manual  - PROGRAMMING THE RADIO
Service Flowchart 
 1
Connect the radio to
the IFR (1)
Perform all
tests: RF and audio
Replace
Main board
(*)  and re-test
Pass
Fail
Maintenance
level?
 
Replace
other kits one-by-one
and re-test
 (1) Refer to Replacement Kit table 
       in Appendix.
Pass
- Replace the customer’s radio
- Send the radio to Level 3 maintenance
- Send the new TEI number to service provider 
- Clone/reprogram customer details to new unit 
1Pass...

PROGRAMMING THE RADIO:  Service Flowchart
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MTH500 Portable Radio Basic Service Manual - MAINTENANCE
CHAPTER 4
MAINTENANCE
Preventive Maintenance
This portable radio does not require a scheduled preventive maintenance program. How-
ever, periodic visual inspection is recommended. 
Inspection
Inspect the radio’s external surfaces. A detailed inspection of interior circuitry is not 
needed or recommended.
Cleaning
The following procedures describe the recommended cleaning agents and methods to be 
used when cleaning the external and internal...

MAINTENANCE:  Safe Handling of CMOS Devices
28
Safe Handling of CMOS Devices
Complementary metal-oxide semiconductor (CMOS) devices are used in the radio. While 
the attributes of CMOS devices are many, their characteristics make them susceptible to 
damage by electrostatic or high voltage charges. Damage can be latent, resulting in failure 
occurring weeks or months later. Therefore, special precautions must be taken to prevent 
device damage during disassembly, troubleshooting, and repair. The...

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MTH500 Portable Radio Basic Service Manual - MAINTENANCE
Removing and Installing the Antenna
The antenna must be removed each time the back housing is removed.
Recommended tools: no tools are required.
To remove the antenna from the unit:
 (See Figure 1)
1.Unscrew the antenna counter clockwise until it is detached from the handset.
To install the antenna in the unit
1.Screw the antenna clockwise to the handset.
Figure 1  Antenna Removal and Installation 

MAINTENANCE:  Removing and Installing Battery Door and Battery
30
Removing and Installing Battery Door and Battery
Recommended tools: no tools are required
To remove the battery door from the unit:
 (See Figure 2)
1.Place the unit facing down on the work area.
2.Press the battery door  release button, slide the door towards the bottom of the unit 
and lift it up from the unit.
To remove the battery:
(See Figure 3)
1.Press the battery fastening bridge toward the upper side of the unit.
2.Simultaneously,...