SNES - Scrolling White Lines

[Waterscorpion]

I got a Super Nintendo for free from a coworker. The only thing that seemed wrong with it at the time was the female AC connector in the system itself was mostly ripped out. I drilled out a slightly bigger hole in the plasic for a heavier duty AC connector which we soldered on to the board. I'm not sure if this was happening before we did this or not (since we couldn't get power to it), but now when I turn it on (using either RF or the Multi Out) I get scrolling white lines down the screen. Has anyone ever seen this, and does anyone have a place where I can find the schematic for the SNES circuitboard?

Any help would be appreciated.

Waterscorpion

[theChad]

The first thing to do is to make sure the new connector matches the old ones amperage and voltage (I know there's a little room for tolerance here, but I'm not sure how much - I'm sure someone could elucidate those boundaries).

The power supply for my SNES reads DC10V, 850mA.

[Waterscorpion]

Yup, it does. And I'm using the AC adapter from my NES since both the SNES and NES are 9v 850mA. The SNES I got didn't come with an adapter.

[theChad]

Well then I guess my next suggestion, before you get to anything too serious, is to make sure the cartridge is clean and the pins in the SNES are dusted out. Also, are you using the RF switch or the N64 style AV cables?

[ooXxXoo]

No, no, no....stop that at once.....The NES power supply is not compatible with the SNES DC power current....Its going to kill it., if it hasn't done that already...

[ooXxXoo]

Since you have replaced your SNES system power port connector due to being broken (which I strongly suggest to do if caught in fhe same case)...You can use a Sega Genesis power supply instead or a similar with a Dc output + ----o)---- -

[Waterscorpion]

Ok, 10v 850mA? I must have run into a lot of false information then. A ton of sites indicated it was the same, http://www.nintendorepairshop.com/shopexd.asp?id=64 even says the same one works for each other.

[ooXxXoo]

Those 3 in 1 power supplies are built in a different manner from the official ones....And they happen to output DC 9v-850mA + ----o)---- - which make them compatible with multiple systems..... While the official NES power supply outputs AC 9V instead...The scrolling white lines you are having, are most likely related to the AC power current that you are feeding your SNES with....

[SnowKitty]

Those 3 in 1 power supplies are built in a different manner from the official ones....And they happen to output DC 9v-850mA + ----o)---- - which make them compatible with multiple systems..... While the official NES power supply outputs AC 9V instead...The scrolling white lines you are having, are most likely related to the AC power current that you are feeding your SNES with....

very true. stop using the nes power cord IMMEDIATELY it can damage the system.

[izarate]

No, no, no....stop that at once.....The NES power supply is not compatible with the SNES DC power current....Its going to kill it., if it hasn't done that already...

very true. stop using the nes power cord IMMEDIATELY it can damage the system.

The PAL SNES uses AC. I think that TC hasn't told us that he's from Europe.

If that isn't the case, then I also suggest you to stop using the NES power supply.

[SnowKitty]

The PAL SNES uses AC. I think that TC hasn't told us that he's from Europe.

If that isn't the case, then I also suggest you to stop using the NES power supply.

ahh, yeah i think you're right, i heard the european snes uses ac too