User Guide

Subject to errors and technical changes 59 Copyright by Becker GmbH, D-76303 Karlsbad
Installation Guide
Noise with external power amplifier (end stage)
Fault: Noise can be heard in conjunction with an external power amplifier.
Possible solutions:
• Use the line-out rather than the loudspeaker output connections for output to the external power amplifier.
• Correct setting of the sensitivity of the power amplifier at the unit's output.
Set the input level of the amplifier to approx. 3 Volt (3000mV) for this purpose.
In the case of a sensitive power amplifier input (e.g. 100mV) where no level adjustment is possible, an attenuator
must be interposed.
Echo during phone calls
Fault: The other party hears an echo during phone calls.
Solution: Set the sensitivity of the hands-free microphone (see Operating Guide, under User Menu). In most cases, a
setting between 0 and 3 achieves an optimum result.