5610 hands free speaker failure solution
The circuit tells us how the audio signal feeds across to a corresponding components before it goes through to the IHF hands free speaker. There are four filter coils connected on each signal polarity before it goes to the speaker terminal pads, and this is the good spot where to check first after the IHF speaker. We can also check and trace the line paths even from the internal solder ball bumps of the power IC (AVILMA) connections.
Wednesday, February 27, 2013
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