SNES-problems - something wrong with my power supply?

[Hologenic]

I am not a wiz at these sort of things so I thought I would ask you here for some aid in a time of need. I have a SNES machine that I have had for maybe ten years and recently brooke. I use the same RF-switch and power supply for my NES and SNES. When I was playing on my SNES, and I moved my television. Al of a sudden the picture went black. I switched the power "off", and when I tried to switch the power "on" again it wouldn't work. I tried my NES with the same RF-switch and power supply and I experienced no problems.

My question is, what went wrong, and how can I fix it?

When the SNES console wouldn't work I boroughed my friends console. It worked fine with my hook-up. After maybe just two days, this console also broke down. Hmmm... This time it worked and I switched the power "off". The day after when I tried to play it didn't work. Coinsidence?

My question is the same here, what went wrong, and how can I fix it?

My consoles are european PAL-SNES if it matters.

[SkiDragon]

I was going to say that the NES and SNES do not use the same power supply, but I do not know if this is true of PAL systems.

It sounds like your power supply is slowly breaking your SNES systems, but if it was truly the wrong power supply, I would expect it to break the systems more quickly.

[davidleeroth]

You can use SNES PSU with NES but not vice versa. Do the SNESs power up at all? Anyways, I'd try them with a different PSU and if they're still not working you should have the fuse on the motherboard checked.

Some PAL SNESs are known to have weak capacitors which start to leak on the motherboard but it would be prety tough luck to see two consoles do that.

[Hologenic]

What is the difference between the NES and the SNES PSU? The information on my PSU reads as follows:

AC ADAPTER NES-PAL-002
INPUT: AC 220-30V/50Hz
OUTPUT: AC 9.8 V/1.3A

This must be the NES PSU, right?

I also have an old broken PSU (which I don't use)
AC ADAPTOR EAC230
INPUT: AC 220-30V/50Hz
OUTPUT: AC 9.8 V/1.3A

What could happen if I use the NES PSU for the SNES?

[davidleeroth]

Sorry for my mistake, I was thinking of my SFC when I wrote that.
Both PAL NES and SNES use the same PSU (AC->AC) so there's no problem.

If a console with DC input doesn't have a voltage regulator/rectifier built-in and you connect a AC PSU to it, bad things will happen.

[Hologenic]

So. Not that I am getting alot of input here, but I should check the mother boards, use another power supply?

[davidleeroth]

If it doesn't power up, the fuse could well be blown, it's on the left side near where the wire from the power switch is connected.
But yeah, if you've had two SNESs blow a fuse, it would be best to change to another PSU.

[MrKitt]

nes and snes use same type of psu but the plugs are different
on pal one of the is bigger and the other one is smaller

on us they dont even have the same typs of plugs.

the following errors could have occured.

the ac adaptor failed due to age.
the fuse blew
the 7805 inside is busted
the D1 geizer unit busted.

either way if its the ac you should get a DC instead as they are more ideal for snes / nes in common and also fixes some issues when using special games like for instance yoshi's island.

for more details please read the snes repair faq ive manged to include most error ive encountered and how to fix em