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The Super Nintendo Entertainment System (SNES), or simply the Super Nintendo, is a 16bit gaming console released by Nintendo in 1990. The Super Nintendo was one of the best sellers of its time and still has a large fanbase today.

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Weird Graphic Issue (Vertical Stripes/Banding) on Certain Elements

Hey guys! I've been searching everywhere for an answer and no luck so far. I'm getting strange Vertical Lines that show up only on certain elements on my SNES. For example, part of the bg hills in super mario world. You can see examples and the internals at the line below:

https://goo.gl/photos/a1RFPZ15weqMdbVZ7

Different games and cables still have the issues. Pulled the whole console apart and everything looks normal and clear. There does not appear to be any traces broken. 62 pin cartridge connector is clean with no bent pins. The brown discoloration around certain areas I cleaned up with 91% isopropyl alcohol, thought maybe it was cause by a leaky cap but it could be flux?

Any help would be greatly appreciated! Thanks!

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I have never seen this issue before. Are you using av cables or an rf module?

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Hey Kris, I've tried two different multi out av cables and the RF switch. All are authentic SNES. Thanks for your comment!

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I've seen horizontal black lines before. (debug feature.)

but i have never seen this before...

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This is because one of your PPU chips (picture processing unit) is failing, specifically, the PPU2 chip. The PPU1 generates background character data, rotation, and scaling, while the PPU2 performs special effects, like the spinning Arwing in the background of your StarFox game. If you can repair or replace that chip, your problem should go away.

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1. Does it happen to all cartridge games in the same general video screen area? Or does it move or not there on some cartridge games and not others?

2. When placing in the game cartridge in and out of the slot does the video look better sometimes and not others ? If so it is the connection of the cartridge to the cartridge retaining clips (Cartridge Mount) is going bad and you will need a new one. Takes extensive De-soldering and re-soldering. Get the work done by a professional.

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Happens to every game I've tried so far, the lines are I different spots not only in different games, but in different levels and areas. As for wiggling the cart, it does absolutely nothing... Untill you get to a decent way out of the pins and the graphics go completely garbled across the whole screen.

I think my next step is to order and replace capacitors. Seems like they can dry up over time and since everything else appears to be in great condition maybe that's what's happening.

Thanks!

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Any luck with the capacitors?

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Hey Josh! Haven't replaced caps yet, but did check them with a multimeter and although I don't know 100% what I'm doing, reading didn't seem odd to me. Also ran a test cart and all internals "passed". Updated the link with photos of that and some other games. I've been posting more details on NintendoAge too:

http://nintendoage.com/forum/messageview...

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