Motorola MT712, Basic Service Manual

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TEST SETUP & TESTING MTM700 Mobile Terminal / Basic Service Manual 5 - 13
Service Flow Chart (Board Level)
Figure 2 Servicing the MTM700
No
Yes
No
Yes
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
No
No
Yes
Yes
Yes
Use the buttons and volume control and
check for correct display result.