Atari Jaguar (oh my god does hedgeyourbets have another problem?!)

Alright here we go again lol
So I bought a boxed atari jaguar in amazing aesthetic condition.
I got to my uni flat and plugged it in (with the official power supply), and the LED didn't come on, I can't test it very well for a couple of days because i don't have a TV in my uni flat, I don't have a game yet either.

I was just wondering if the LED is supposed to come on without a game? Because if I suspect that it might be faulty I'd like to let the guy I bought it from know as soon as possible.

 

Yeah certainly is meant to with or without a game if I remember correctly, is the power supply the original Jag one?

 

As far as I can tell, it does say JAGUAR on it

 

That's cool, sometimes people change the PSU and it could cause problems, have you got a Megadrive 1 kicking about? I think the voltage is the same between the earlier Sega machines and the Jag, you could check and try it in a MD to see if the PSU is duff?

 

I think you need a game or else the console won't turn on IIRC.

 

Actually, yeah that is correct, I've just tried mine and it doesn't switch on without a game

 

Oh phew that's a relief, i know the lynx doesn't turn on without a game. Well I have a game coming in the post so I'll report back later in the week.

Also, personally I wouldn't put a megadrive psu anywhere near it because I don't know how wide the tolerance of the voltage regulator in the jaguar is (if it has one at all), the megadrive power supply although rated 9/10v depending on the vintage, actually outputs closer to 14v, but i have a pile of universal power supplies which i know are good which I will test it with if it still won't work with a game.

 

I ran one off a MD PSU for years before realizing it wasn't an Atari one, it shouldn't - you're right but it can be a quick test.

 

A model 1 Genesis/MD PSU will work perfectly fine with the Jag.

 

I never disputed that it would work?
Just that I'd rather not power a 9v machine with a 14v adapter when I have plenty of adapters which actually output 9v

 

It's not a 14V adapter - it's a 10V unregulated adapter. Seeing as the Jaguar has a regulator in it (as per most consoles), you'll be fine. The regulator goes up to 40V, IIRC.

Sega Mega Drive PSU: 10V DC 1.2A unregulated, negative centre
Atari Jaguar PSU: 9V DC 1.2A unregulated, negative centre

As has been stated before, you will have no problems using that.

 

People need to stop taking what I say so literally, I know the difference between a 14v supply and an unregulated 10v supply which outputs 14v
I have a load of regulated universal power supplies, the jaguar specifies that it want's nine volts, therefore, if the official power supply doesn't work I will use one of those rather than a megadrive power supply. Besides how was I to know the tolerance of the voltage regulator? I've had this jaguar for like 12 hours.

I never said it wouldn't work, i never even said that it was likely to cause a problem, just that I'd rather give it what it asks for

 

Thats what ANY unregulated PSU will do. Put some load on it (so connect a console etc) and the voltage is what its supposed to be.

The original jag psu will be exactly the same, as its also unregulated.

The end result is NOT the same, its only 14v because there is no load. A 14v supply would be 14v with load. So its not the same thing

If you have a 2amp unregulated PSU - then the voltage is only correct when there is a 2amp load on it. Which is why people who blindly say "Higher amps is fine!" is only correct in theory, as when its an unregulated PSU, the voltage wont be correct (although it generally doesnt matter, as the device has a regulator anyway).

The only time you will really have an issue with an unregulated PSU giving too much voltage is if the PSU is very high amps and the load is very small (i.e. 5amp psu, 100mah load).

 

Again I never said that there was going to be an issue at any point, perhaps I'm just obsessive about adhering to what it specifies it wants if i don't have the official power adapter, besides this is all a hypothetical situation anyway because I don't know whether or not the one which came with it does actually function

I also did not know whether or not it had a voltage regulator, I had been told before that it didn't (though that was obviously incorrect)

 

I love voltage regulators! :love-struck:
I'm just glad that your Jag is hopefully working properly!
Keep us posted! :topsy_turvy:

 

You are missing the point, it IS EXACTLY what it wants. The original Jag psu will also say 14v if you measure it with no load attached. This is how unregulated PSU's work - which is what the jag came with.

If anything, by using a regulated PSU - you are NOT adhering to what it had from the factory

 

I was referring to what it speficies it wants rather than what the adapter actually does, I wasn't missing the point I knew what you meant, it's just an illogical obsession.
Regardless, the original adapter works so it's a non-issue, everyhting is fine the jaguar runs nicely, sorry for wasting everyone's time.

 

You are still not getting it though - it doesnt supply the console with 14v. Thats because you measured it with no load. The PSU is 10v, regardless of you getting 14v - its because you measured it wrong.

Connect the PSU to the console and power it on. Measure from the bottom of the jack on the console motherboard and it will be correct - just like it says its supposed to be.

 

I know, I understood it after the first time you explained it.
The jaguar says it wants a 9 volt supply, I have a variety of universal supplies, the megadrive one goes with the megadrive console, if I don't have the original supply I prefer to use a universal until I find a suitable replacement. It was never really about the voltage, I was using it as an excuse to rationalise my craziness, I don't like using power supplies which were intended for other consoles, I know it doesn't make sense but we all have our quirks.
I really wish you could have just dropped it instead of hammering home what a neurotic idiot I am.

 

Lol,

If you would have just said that from the start (rather than the voltage thing) - I would have agreed with you.

I dont like using other consoles psus (with their branding) on another console - id rather have a generic branding than another consoles.

So I can agree with that part