My Samsung tv is showing Blue screen

Hi,

I had a display problem with my samsung 40” smart tv, the power light was on and it blinks for some time when i select anything on remote but there is no display.

Then i ordered the complete tv repair kit from shopjimmy and tried replacing one after the one (power supply, mother board and display kit). now the screen is getting on but its just blue screen and nothing else. sound looks ok to me when i press volume up and down buttons, i could see in volume increase. need help badly in fixing this.

Thanks in advance

Praveen