User's Manual

MCW-D 50 – Setting up
48
8. Battery Charging with external CA 2457 Power Supply Unit
• The MCW-D microphone units can also be charged with the external
CA 2457 power supply unit, which is connected to the DC socket or .
• The charging process is indicated by the operating control LED or .
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
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.
• When the battery is completely empty, the charging time is around
5 hours with the MCW-D 521 / 523 and approx. 7 hours with the
MCW-D 531 / 533.
• If the microphone unit is switched on during the charging process, the
LED or will illuminate green.
2
2
3
3
Rear view MCW-D 521 / 523
9. Trouble Shooting
If problems occur that you do not find listed below, reset the MCW-D system to the standard configuration with the MCW-D 50
Conference software. Please refer to the appropriate manual.
Problem
LED or flashes red rapidly
Power LED or 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
• All channels are occupied
• Check the number of open microphones
(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
• System operates in the PC
controlled mode (Controller)
• Control unit is not switched on
• Check the number of open microphones
(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 micro-
phone unit
• If the battery is empty, recharge it
• Deactivate PIN Code
• 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
• Set the system into the autonomous
operating mode 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
7
3
Rear view MCW-D 531 / 533
15
15
16
3
16
16
16
20