plasma wont turn on its an lg

[daiiz.alvallar4]

i conect it and the green button stays on nuthing pops out but picth black in the screen i need help
itried leaving it on for hours but nuthing still

 

[americanaudiophile]

Check with
www.shopjimmy.com
They sell replacement boards and are very helpful in diagnosis.
Power supply is the first thing that comes to mind.