Lyngdorf Audio TDA 2200 - Manual (Page 35)

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c. Fault - Signal clipping
The above error message is displayed when the incoming signal is classified as too loud
resulting in clipping (distortion).
An overly loud measuring signal results in this error message.
Solution:
Lower the measuring signal volume before continuing with the measurement.
A loud noise from the local environment that has corrupted the measurement results in this
error message.
Solution:
Repeat the measurement with no changes; however refrain from making excessive
noise when measuring.
Useful hint: You can exit a commenced measurement by clapping close to the
microphone. This results in the above error message.
d. Fault - Low signal
The above error message is displayed when the measurement has taken more than 5
minutes for the low frequency signal or 2 minutes for the high frequency signal. This
happens most often when using a low measuring signal compared to the background
noise of your environment, something that results in prolonged measuring times.
Solution:
Raise the measuring signal volume before continuing with the measurement, or
reduce the noisy elements in your environment.