4.2 - 16 MTH800 TETRA Handportable Terminal / Basic Service Manual TEST SETUP & TESTING 440-470MHz
Service Flowchart 
 1
Connect the terminal 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 Parts 
  in Maintenance section.
Pass
- Replace the customer’s terminal
- Send the terminal to Level 3 maintenance
- Send the new TEI number to service provider 
- Clone/reprogram customer details to new unit 
1
Pass
Fail
Fail
- Replace battery
- Replace antenna
- Send new TEI number to the 
service provider
- Clone/reprogram, customer
 details to new unit
(*) Main Board: See Service Replacement Kit (Appendix A)
 
Note: Not field replaceable for Latin America