Tool/software:
Hello
Based on the TDA4VM CPU, we designed a sample by designing an AIEDGE board suitable for customer specifications.
Of course, based on the TDA4VM EVB Demokit sprr438b version of TI product, we designed a new PCB board to make a sample.
As a prototype sample, the circuit was ARTWORK by applying the TDA4VM EVB Demo KIT as it is, and the BOM on the sample board was applied as it is to produce the sample.
But the power is not operating at all, so what should I check first?
The TDA4VM EVB Demokit was purchased as a sample and tested in advance by uploading the image file provided by TI.
The sample demo kit works very well.
The new sample we produced doesn't work, so what's the problem?
Can you tell me what I need to check first?