User Manual Part 1

Troubleshooting 4-2MTX5000 User and Technical Manual
Figure 4-4: Summary Alarm Dialog Box - Typical
In all cases, the error message will uniquely identify the problem,
i.e., +5.5V Powersupply Error.
To isolate possible IDU problems, see “Perform IDU Diagnostics”
on page 3-56.
See Table 4-1 for a list of Indoor Unit (IDU) error messages and
what to do when they appear.
Table 4-1: IDU Error Messages
Error Message Error Type
Suggested Technical
Staff Action
+5.5V Powersupply
Error
Major • Indicates internal
power supply failure
and potential unstable
operation. Verify IDU
input power.
• Call MRC Technical
Support.
+12V Powersupply
Error
OK
Summary Alarm
xxxxxxxxxxxxxxxxx
+24V Powersupply
Error
Minor • Indicates minor
internal power supply
failure. Verify IDU
input power.
• Call MRC Technical
Support.
-12V Powersupply Error
Ext IF Level Too High Minor • Indicates external IF
level is above
recommended level.
Attenuate or
disconnect signal to
avoid system
damage.
• Call MRC Technical
Support.
FMT Fault Alarm Major • Indicates internal
hardware fault.
• Call MRC Technical
Support.
Audio1 Unlocked Minor Verify audio input is
connected
Audio2 Unlocked
Audio3 Unlocked
Audio4 Unlocked
Analog Video Unlocked Minor Verify composite video
input is connected.
Table 4-1: IDU Error Messages
Error Message Error Type
Suggested Technical
Staff Action