SOLVED- famicom does not power on

[supermariolinux]

I am not sure exactly what could be wrong, I have opened up the famicom, i am looking for the fuse and cant seem to find it, I am not sure if it even is supposed to have one. ill admit i accidentally used a nes ac adapter so i know i damaged something, here are some pictures...
I do have the correct adapter for the famicom.

I'm not sure of that exact model of my famicom, its either HVC-001 or HVC-002, i believe it is a HVC-002
looks like my famicom is a HVC CPU-007 as labeled on the main board.

help would be greatly appreciated    

[supermariolinux]

Thank you for the info,

so ill replace the 7805 then, how come my famicom doesn't have a fuse?

[ericj]

Some board revisions don't have a fuse.

[supermariolinux]

Looks like my board is from 1984,

Is there anything else that i should be looking for that could be damaged?

So i just de-solder it and solder the new 7805 one right?

I heard it doesn't matter what 7805 you use, is that true?
would something like this be okay?
http://www.radioshack.com/product/index.jsp?productId=2062599

[ericj]

Yeah, that one will be fine. All 7805 marked voltage regulators will be the same thing.

[supermariolinux]

okay thank you, ill update this topic with my status.

i really hope me and my dad can fix this, i dont want to have to buy a whole new famicom

[GohanX]

I'm not familiar with the different Famicom revisions, but in mine the fuse is a little black thing near the power plug, you wouldn't be able to see it in your pics due to the RF shielding. I'll post a pic when I get to a computer if someone doesn't beat me to it.

You can't tell by looking at it if it's blown, but i'd imagine you could check the two ends for continuity, and then use a jumper wire to bridge the solder points to test the system.

[GohanX]

Um, nevermind, looks like I spent too much time typing on my phone!

[supermariolinux]

yay it works my dad did the job for me, and after some fumbling it works now.

thank you guys.

[famifan]

I heard it doesn't matter what 7805 you use, is that true?
would something like this be okay?
http://www.radioshack.com/product/index.jsp?productId=2062599

this one is purely overpriced noname crap.
compare it with http://e-mart.datagor.ru/uploads/posts/2011-05/1305273851_l7805.jpg (at my local store it costs less then 0.5$)

every serious IC should have manufacturing timestamp date (actually if it has enough space for putting this info onto surface), part number with some other codes (such as the country where it has been produced, like taiwan/china/etc.) and manufacturer logo. All this data should be laser engraved. Every manufacturer uses their own customised fonts.

But those rules won't work for SMD which has no enough space for putting all information.

good news that your crappy 7805 will work, but it can't guarantee the tolerances and typical values announced in the datasheet.