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7.0 Troubleshooting
Clicking sound in a connected speaker or headset. Check the Overload LED. If this is On or
flashing for any reason even though no Audio is being passed, this may be indicating a possible
speaker fault, the output wires have been shorted or that one of the speaker wires has been
grounded. Check the speaker and/or wiring for faults before trying to switch the module on
again. If the speaker works when the module is switched Off (i.e. the audio is bypassing the DSP
Circuitry) then this indicates a PCB fault. The input to the module is loaded at approximately 62
Ω
. When switched off, the signal is placed directly on the speaker and of course the impedance
becomes whatever value the speaker is.
