User's Manual

Trouble Shooting
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7. Battery Charging with external Power Supply Unit
• The MCW-D microphone units can be also charged with the external
CA 2457 power supply unit, which is connected to the DC socket .
• The charging process is indicated by the operating control LED .
LED indication during charging the battery:
a) Operating control LED is flashing red . . . . . . . . . . . . . . Battery is
charged
b) Operating control LED illuminates red permanently . . . Battery is full
c) Operating control LED is flashing red rapidly. . . . . . . . . Error
Rear view
Important:
• After some time the capacity of the rechargeable batteries is
reduced technically. This will reduce the operating time.
• It is normal that the rechargeable batteries are heated up
during the charging process.
• The charging time is around 5 hours when the battery is
completely empty.
• If the microphone unit is switched on during the charging
process, the LED will illuminate green.
8. Trouble Shooting
If problems occur that you do not find listed below, the MCW-D system should be adjusted to the standard configuration with
the MCW-D 50 Conference software. Please refer to the appropriate manual.
Problem
LED flashes red rapidly
Power LED flashes
Microphone unit goes off
Allocation is not possible
Microphone unit cannot be switched
on
Possible Cause
• Control unit is not switched on
• Microphone unit is not within the
range of the control unit
• Frequency bands have been
configured incorrectly
• Battery is almost empty
• Low battery warning to indicate that
the battery is almost empty
• Check if the battery is still full
• PIN Code is activated
• Control unit is not switched on
• All channels are occupied
• Check the number of open micro-
phones (NOM) with the MCW-D 50
Conference software
• Microphone unit is not within the
range of the control unit
• Check the adjusted frequency bands
• Interference caused by WLAN
• Control unit is not switched on
• Check the number of open micro-
phones (NOM) with the MCW-D 50
Conference software
• Check the battery
• Microphone unit is not within the
range of the control unit
Solution
• Switch on the control unit
• Reduce the distance between
control unit and microphone units
• Check the adjusted frequency bands
with the MCW-D 50 Conference
Software
• Recharge the battery inside the
microphone unit
• If the battery is empty recharge it
• Deactivate PIN Code
• Switch on the control unit
• Switch off an activated microphone
• If possible increase the number of
open microphones (NOM) with the
MCW-D 50 Conference software
• Reduce the distance between
control unit and microphone units
• Use the standard adjustments
mentioned in the MCW-D 50
Conference manual
• Select another frequency band for
the RF module(s) with the MCW-D 50
Conference Software
• Switch on the control unit
• If possible increase the number of
open microphones (NOM) with the
MCW-D 50 Conference software
• If the battery is empty recharge it
• Reduce the distance between
control unit and microphone units
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