Controller board not getting power up


Hello everyone,
I have 4 boards of openrov. In one of my board I am facing problem with power. When I try powering the board up using homeplug adapter it does not work. However when I use the same homeplug adapter and beaglebone on a different controller board, everything powers up and ESC and motors turns on. I am sure that there is some problem with the controller board but I cannot figure out what that is. In the same controllerboard(which is not getting powered up). I burned a basic code of running motors using external programmer and Arduino IDE it runs perfectly. However to run that code I have to power the controller board up via Pololu programmer’s serial interface.

Can anybody have any experience with similar problem. Also suggest me when could possibly be the issue with the board.

Thanks and regards,