I unplugged the output earplugs and the three Green LEDS flashed quickly and stopped. This was after a download. On the input I changed the volume to very low to a point I could just hear the audio. When I did a hardware reset the audio passed through the board fine. The self boot is in the enabled mode. There are no jumpers on the board.
Is there software diagnostic to check the board. I tried the previous software. But it did not support the 1452 IC.
I rechecked the instructions. I did exactly as shown. If I could run a diagnostic software program that may help.
Philip Nielsen