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info Dbtechnologies
Status Signal
Input signal presence indicator — lights at the presence of input audio signal.
? What Causes This
Normal operation when audio signal is detected at the inputs.
ⓘ What This Means
This is a normal indicator. No action needed.
Source: page 2 of the official manual
From the manual
This error code appears in:
Dbtechnologies A4TI Professional 4 Channel Power Amplifier