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M3SR Series 4100
Errors
Error messages occur in case of a hardware failure.
•
The radio is no longer in proper working order.
•
As soon as an error is detected, the GO LED (1) on the radio front panel and the GO LED
(2) on a connected control unit are switched off (see Figure 6.2). The LEDs remain
switched off until the fault is eliminated.
•
Error messages will be logged in the failure archive.
•
Error messages do not disappear automatically. Press 'ENT' to acknowledge the mes-
sage.
6.2.2 Power-On Built-In Test (PBIT)
After switching on the radio (see sect. 2.6 Switching the Radio On), the power-on built-In test
(PBIT) is started automatically. PBIT is performed in a few seconds during start-up. It allows
a short analysis of main functions like receive and transmit mode with acceptable test depth
and test time. This keeps the delay from power-on to the first possible user action on the ra-
dio reasonably short. The detection of installed modules and options as well as their versions
is considered a part of PBIT.
If during PBIT no error is detected, the GO LED on the radio front panel and the GO LED on
a connected control unit will light up.
If during PBIT an error is detected, the GO LED on the radio front panel and the GO LED on
a connected control unit will stay switched off. In this case the BIT Status displayed in menu
Radio MTC 1/7 (see sect. 3.4 Radio Maintenance) will also show 'Error' (see Figure 6.3).
Operating Manual 6175.4760.02 – 01
Troubleshooting
6.5
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