Nintendo Super System help!!!

[Hogie1418]

Whats up guys
Well I just got my old Arcade back from my uncle but like when I got rid of it 5 years ago it still does not work I figured I would take it back and try to get it running again but I have no clue where to start... If anyone can help or give me a link to more of a dedicated arcade forum that would be great... The machine appears to power on because the screen flashes alittle at the bottom right of the screen where it seems to being trying to start.. Any help would be greatly appreciated!!! heres the machine...

[La4s]

Can you hear the game playing?

[Hogie1418]

no... but if I can remember correctly I used to be able too... Also after looking it over again, It doesnt seem as if the buttons to choose games are working either (Im pretty sure they used to light up). If thats the case then It would be sitting on the credits screen with no sound to play...

[Borman]

id start by checking the powersupply, as thats always a safe bet if things arent powering on like they are suppose to. Check the voltage output. Ive never actually seen much on the Super System, so I dont know exactly what they should be at.

[Hogie1418]

I appologise fellas ahead of time but I am such a noob when it comes to these things (Im a NES guy) How would you check the voltage output?

[Borman]

multimeter does the trick. Will want to check the 5v and 12v at the least, dunno if it has a -5v or not