My NES has bugged graphics... Pls Help !!!

[theviruxx]

Hey all,

Long story short, I've tried to resurrect my old NES (original side loader). I've done some extensive cleaning on both console and games, replaced the 72 pin connector, etc. but have run into a common problem between games. The sprites (or character layers) are reversed and half of it lags when playing the game... everything else is fine which is why i'm reluctant to give up and fork out $150 for a new system. Could it be a faulty PPU? I have uploaded some photos to my photobucket, please see links below.

Title Screen


Playing 1


Playing 2


Any help appreciated !!

Thanks,
TheViruxX

[Niku-Sama]

Could be a faulty ppu or ram. My money would be on ram. But it's hard to say with out swapping ICs.

A new nes shouldn't cost you $150 bucks though

[Tanooki]

Well he did say new. If you want to take new literally, it could be that much depending on which one you find and how many see it/fight over it in the end.

[theviruxx]

Could be a faulty ppu or ram. My money would be on ram. But it's hard to say with out swapping ICs.

A new nes shouldn't cost you $150 bucks though

They are at a local GameTrader store... plus i'm in Canada and our dollar isn't the best these days
Do you know where i could get some spare IC's ?? I do have a decent solder gun for chips.

Thanks !

[Niku-Sama]

These are clone chips from umc. I guess they were notorious for making their own nes compatible cpu/ppu and selling them to make hardware clone systems

http://pages.ebay.com/link/?nav=item...733454&alt=web

Your not upgrading from a PAL system so you shouldn't need to install the crystals.
I'd try changing ram first though. Console5 has a wiki and should have part numbers to find the ram on mouser or digikey. I think those both ship to Canada