Motorola MT912 - Service Flow Chart (Board Level)

TEST SETUP & TESTING MTM700 Mobile Terminal / Basic Service Manual 5 - 13
Service Flow Chart (Board Level)
Figure 2 Servicing the MTM700
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If the radio does not have a control head
attached, you need to connect a control
head to operate the radio. For a motorcycle
radio use a motorcycle control head. In all
other cases use a standard control head
Switch on the radio and observe the display
at power up. All icons, characters, LEDs
must switch on for a short while and then
the radio must completely perform the
power up self-test.
NOTE:
Before replacing any kits, check the
flexes to the control head or expansion
head.
If the main board has been replaced:
Send the new TEI number to service
provider. Clone/reprogram customer
details to new radio.
If fuse F0301 or F0302 needs to be re-
placed use Motorola part 6580542Z01
(see figure on following pages).
A list of replacement kits can be found
in Appendix A (Replmt. Parts & Kits).
For a list of replacement parts refer
to Chapter 6 (Maintenance).
Start
Power up
OK ?
All tests
successful
?
Replacement
kits available
?
Read the codeplug with the CPS. Connect
the radio to the IFR. Perform all RF and call
tests of chapter TEST SETUP & TESTING.
Replace main board and start
complete procedure again.
* Not field replaceable for
Latin America.
If no kits have been replaced,
verify installation integrity:
Check DC cable and connector
Check RF antenna, cable & connector
Check connected accessories
If the main board has been replaced:
Send the new TEI number to service
provider. Clone/reprogram customer
details to new radio.
Replace the customer's radio.
Send the faulty radio to Level 3 maintenance.
Clone/reprogram customer details to new radio.
Send the TEI number of the new radio to the
service provider.
Incorrect behavior of
LEDs, display or buttons.
Replacement
kits available
?
Replace the control head
or the expansion head.
Switch on the radio again.
Power up
OK ?
Check fuses F0301 and F0302
on the main board before you
replace main board and start
complete procedure again.
Done
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Use the buttons and volume control and
check for correct display result.