iMac won't turn on
I have a imac mid 2010 and it won't turn on at all no fans no nothing. I took it to a repair shop they replaced the power supply board and still nothing. They wanted to replace the logic board next but I pulled my imac because they gave me a crazy expensive estimate and I'm sure I can do it myself.what do you think it could be. I checked the power chord and it's getting power so I have no idea what I should do next. Please help!