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What is the quickest method to diagnose TAS5705EVM2 MC57xxPSIA

Hi,

  I m having serious problem to get the TAS5705EVM2 working again, at the moment it does not play any sound from any input, I do not know whether it is hardware or software GUI failure.

 

Could you give me some a on how to test in order to identify the problem?

Question:

How to test if there is software communication problem that the GUI could not boot up the device?

How to test if there is a problem with MC57XXPSIA?

How to test if there is a problem with TAS5705EVM2?

 

best regards,

sk