Mega Drive II + & - poles?

Hi all!
Just bought a european Mega Drive II. It's untested, so it could already be dead.
But here's the question, I've only an ac adapter for a clone console and it has 10v output, like an original MDII power block.
The thing is that I'm not sure if it has the same power flow as the original.
Here's a photo of it:

 

that is def a clone if it has that label.EDIT(didn't notice you mean ac adaptor at first lol) be very careful as clone ac adapters sometimes don't work as advertised on the label lol. also unless you translate the label i can't tell if it's DC or AC on the output. diagram indicate center pole negative so just make sure it's the same. btw that IS the same polarity as the Genesis/Megadrive.

 

In the USA, Genesis 1 uses 10v 1.2a center negative.
And Genesis 2 is 10v 0.85a center postivie.

This label's listed console-side rating matches Genesis 1.

 

Nope, the EU Mega Drive II is center positive so that's definitely not the adapter to use.

 

That label is from an ac adapter (not from the console I bought) that came with a clone. It's DC on the output.
Is it dangerous to try and stick this ac adapter in a model 2 mega drive? Like, is there an actual chance of the console frying b/c of that?
What if I cut it up and change it to center positive (don't worry, despite my lack of scientific knowledge I've successfully done these kind of things hundreds of times) will that work even if the amperage is higher than required?

ps.
the console on the photo above is the one I've bought, it's hasn't actually arrived yet.

 

This is the sticker on the back of my mega drive 2:


The adapter amperage does not matter as long as it is at least .85A. And it should be centere positive:


Note that the input voltage of mine is 230V, so it wont work in the U.S. If that is your location. Otherwise just get a universal power adapter and use that

 

american dad you can cut and flip it if thats the case, i've done it a million times. i have my mega cd mega drive and 32x wired into a 3 amp ac adapter.

 

Good to know, thanks.
On mine it's 220v, I'm in Sweden.
It's a bit weird and kind of like the US vs Japan 100v vs 110v. In practice they're safely intercompatible but traditionally write different voltages nonetheless.
I'm a bit tight on cash, so buying an adapter will be my last resort.

Cool, then that's what I'll probably do.

 

Reverse the polarity if you want to use it. Sending the wrong polarity will damage the power input circuitry. The amps do not matter as the console is going to draw as many amps as it needs and nothing more. You should be fine as long as the PSU outputs 850mA (0.85A) or higher.

 

I would just open up the console and use a multimeter to check the polarity - find something that is obviously ground inside the console, then connect to centre pin of PSU connector and see if label is correct.

 

Thanks for the tip, Bad Ad.
The console is original so the polarity is known, thanks to Lum.
It's the psu that's from a clone, but it's polarity is also known thanks to it's label.
Also I don't own any electronics tools.
I have knives, scissors and tape. That's about it lol.

 

that's all you need!

 

Thanks for all the useful knowledge and tips, guys. I'll report back once the console arrives in the mail.

 

I just tend not to trust labels on cloned hardware.

 

Ah, I see. I might have it checked at a shop then.

 

220/230 is okay, i know
If you dont have cash flip the wire, although universal adapters are pretty cheap ( < €10).

 

Huh, well I could buy one online for $3, but that would take two weeks to get here. Or I could get a universal adapter at any local electronics shop for $40. Sweden doesn't mess around. Everything is insanely expensive (compared to the rest of the world).

 

not very hard to deduce what that label says..

Adapter input voltage: 220v @ 50 or 60 Hz (Odd because most of eastern Europe is 230v @ 50Hz)
Adapter output: 10v with 1.2a max load

There is no standard for DC barrel jack polarity, I doubt this thing will be expecting 10VAC, that would mean having a 50cent bridge rectifier and the golden rule of clone hardware is spend as little on manufacture as possible....
I wonder if the people that make this junk, all meet up once a year and have an Oscar type awards show?
Complete with a 240v powered trophy with no mains isolation.....

 

I just got it in the mail. Board says it was made 8 november 1995. It's completely legit.
A couple of things bother me though.
1 The screw-holes (where the srews go) on it's belly are scratched up, like someone was in a real rush to open it. The screws are scrathced too.
2 The upper shield inside is put in place by only 2 screws, the rest are missing.
3 The power connector, on the back, is smaller than both of my clone power adapters`so they don't fit. This is noteworthy as both clone consoles have been tested with original SEGA psu's. Is the mega drive 2/genesis 2 power connector smaller than model 1?

 

HI,

Model 2 is indeed smaller.
On the left is the (original) model 2 adaptor plug, right is model 1 (original)