TPA2028D1YZFEVM: Problem with input signal

Hello everyone, 

I have the problem with TPA2028D1EVM. I generate audio signal from my MCU DAC, and I checked whether there was a signal on the DAC output. When I connect DAC output with TPA2028D1EVM input pin, my signal fall down to 0V. Register configuration on amplifier are: 0xC3, 0x05, 0x0B, 0x00, 0x06, 0x3A, 0xC2. I generated this configuration with the  TPA2028D1 Interface software. There is no error at I2C bus.

The picture below shows the connection of TPA2028D1EVM:

(1) Green cable is DAC output

(2) Yellow cable is VDD from my power supply

(3) Brown cable is GND from Power supply

USB_PWR jumper is removed, because I use external power supply. I checked PVDD and it is on 5V. Do you have any idea what the problem is?

Thank you in advance,

Nikola