Super Famicom green horizontal lines

[Siper]

Well I've been wanting to know what's the situation for a while but have now finally asked, in my super famicom collection, two of my games: starfox and yoshi's island both display slow moving horizontal green lines when the games are on and I have absolutely no idea what is wrong with them or what is to blame for this problem.

Unfortunately it doesn't show too well on the pictures I took.



If anyone could explain why these green lines are here i'd be greatful!

[AppleQueso]

Both games use the Super FX chip...

...do any other Super FX games you might own do this?

[Siper]

the only other super fx chip game is a pal copy of starfox (starwing) which is played on a different super nintendo and that plays fine.

[flojocabron]

it may not be the FX chip.

I believe it might be console related.

I recently got an snes at a fleamarket and I'm letting my brother borrow it. His girlfriend and him play Supermario All-stars and World, Mario Kart, Donkey kong and Mk 1.

But Instead of a horizontal line like OP said, I have one Vertical line. It does It on all the games. So at least its on the console. Every time. A green line, a little thick but not overly huge.

Its happened on multiple tvs so its just not the tv or interference.

What makes it weird too it that when the sprite or animation of the game gets near it, it looks like a shadow going across it. The backgrounds in SMW and the Backgrounds in SM3 get the green line mixed in and when mario passes by, the line gets a little grayish or changes color ever so slightly.

I have not used a cleaner on the snes as well, so I dont know if thats gonna help it or not.

My other 3 snes work fine.

[ApolloBoy]

What power supply are you using?

[ice445]

It's probably a leaky cap or something similar.

[Hobie-wan]

It could also just be interference from all the other stuff hooked up around the TV or even the wiring in the wall since it is horizontal and rolling. Try shifting the wires around and see if it changes. Even try hooked to another TV elsewhere.

[Siper]

I checked and its a 240V power supply, since the pal power cord works fine with the super famicom i've found.
I also tried it on another tv in the house and the same problem was present. Guess my console hates super fx games

[theclaw]

stop!

nintend's snes pal power cord outputs AC.
super famicom is rated for DC.

super fx games could be having problems due to higher power draw than basic carts.

[ApolloBoy]

stop!

nintend's snes pal power cord outputs AC.
super famicom is rated for DC.

super fx games could be having problems due to higher power draw than basic carts.

I don't think he said that he was using the official SNES power supply, just that he was using a European one. If it's a third party PSU there's the possibility that it's not providing enough amperage to power up the SNES and SuperFX cart without issues.