TEST SETUP & TESTING 806-870MHz MTP850 TETRA Handportable Terminal / Basic Service Manual 5.2 - 13
28. Press any key again. The display shows “Chopper-Noise PHF Mic Int earp”.
Bind around the antenna one binding of the earpiece cable and place the
PHF earpiece in your ear and listen for chopper noise. Make sure chopper
noise is not audible.
29. Press any key again. The display shows “RSM CE connector is not
connected”.Press any key again. The display shows “RSM CE connector is
not connected”.
Press any key again. The display shows “RSM Side connector is not
connected”.
30. Press any key again. The display shows “Int Mic Int earp Loopback Test with
UCM”. Speak into the bottom microphone, and you will hear your voice via
the earpiece.
Note: Tests 31-37 work also without UCM.
31. Press any key again. The display shows “TOP Mic PHF spk Loopback Test
with UCM”. Speak into the top microphone, and you will hear your voice via
the PHF earpiece
32. Press any key again. The display shows “PHF Mic Int earp Loopback Test
with UCM”. Speak into the PHF microphone, and you will hear your voice via
earpiece
33. Press any key again. The display shows “RSM CE connector is not
connected”
Press any key again. The display shows “RSM Side connector is not
connected”.
34. Press any key again. The display shows “Chopper-Noise INT mic Int earp
with UCM”. Place the internal earpiece close to your ear and listen for
chopper noise. Make sure chopper noise is not audible.
35. Press any key again. The display shows “Chopper-Noise TOP mic PHF spk
with UCM”. Bind around the antenna one binding of the earpiece cable and
place the internal earpiece close to your ear and listen for chopper noise.
Make sure chopper noise is not audible.
36. Press any key again. The display shows “Chopper-Noise PHF mic Int earp
with UCM”. Bind around the antenna one binding of the earpiece cable and
place the PHF earpiece in your ear and listen for chopper noise. Make sure
chopper noise is not audible
37. Press any key again. The display shows “RSM CE connector is not
connected”
38. Press any key again. The display shows “RSM CE connector is not
connected”.
Press any key again. The display shows “RSM Side connector is not
connected”.
39. Press any key again. The display shows all the radio keys.
40. Press every key, one by one. Each key you press causes its respective
display to disappear.
41. Press any key to continue.