need help from sega master owners

[superomni]

I just got a sega master console with no rf unit, ac adaptor or controllers. does anyone know subsitutes from other systems i can use for these items? does anyone have extras of these items? thanks

[King Atari]

I heard you could could use Genesis hook-ups, but I have the portable SMS, so I really can't guarantee this.

[Atarian75]

An NES RF will work. I don't know about a power supply though. Good luck.

[Ze_ro]

The Master System needs 9V 850mA according to the bottom of the system. Oddly, the power supply I have (Which is a real SMS power supply) says 9V 1A.

 

As for the Genesis, the adapter I have is 10V 850mA... however, this should work fine with a Master System... power requirements are a little flexible as long as you don't overdo it (or underdo it). As long as you have something that provides at least 9V, you're probably fine...

 

... of course, don't blame me if it burns out on you...

 

--Zero

[Opa Opa]

quote:

---

Originally posted by XatariX:

I just got a sega master console with no rf unit, ac adaptor or controllers. does anyone know subsitutes from other systems i can use for these items? does anyone have extras of these items? thanks

---

 

As for a power supply, Im pretty sure you can substiute the Genesis one.

[Atarinvader]

quote:

---

Originally posted by Ze_ro:

The Master System needs 9V 850mA according to the bottom of the system. Oddly, the power supply I have (Which

is

a real SMS power supply) says 9V 1A.

 

As for the Genesis, the adapter I have is 10V 850mA... however, this

should

work fine with a Master System...

---

 

Don't put over the rating on the voltage, even 1V could be enough to fry your SMS.

 

As for the current, it doesn't matter as long as you are on or over the current rating, the console will draw enough current as it needs, but if you put a PSU that is under the rating, say 300mA, then the system will draw more current than the PSU can handle and blow the PSU. This is why Ze_ro's offical PSU has a higher current rating.

 

A PSU with this rating and the same generic plug type should be easy to find. My PC is powered by several suitable supplys (scanner, speakers etc).

 

Also check the polarity, which on my SMS II is center negative.

 

As for the RF hook ups then you can use the same as a 2600 Jr., Jaguar, NES, MD1 (not 2) and a whole load more.

 

I could sort you out with the lead, offical switch box and a controller if you want to email me.

[superomni]

atarinvader please check your email

thanks

[Ze_ro]

quote:

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Originally posted by atarinvader:

Don't put over the rating on the voltage, even 1V could be enough to fry your SMS.

 

As for the current, it doesn't matter as long as you are on or over the current rating

---

 

Actually, I've used the wrong power requirements for various consoles on MANY seperate occasions, and things are a lot more flexible than they lead you to believe. Almost all game systems have a voltage limiting circuit in them that will handle higher voltages. For example, the Atari actually only runs on 5 or 6 volts, yet has a 9V power supply. I suppose there's a chance that the SMS (or any given system) wouldn't have such a limiting circuit, but that wouldn't make much sense from an electrical standpoint, since it's a fairly simple circuit (Hey, if the Atari had one), and it's almost required to avoid noise and spikes on the power lines.

 

As for current, the rating on the power supply is what is supposed to be it's maximum, and if your console is drawing more current than it claims it can handle, then you are overworking the power supply. However, I've often used consoles that draw even double the rated current from a power supply without any problems. I've never once had a power supply burn out on me. Of course, your milage may vary.

 

--Zero

[Atarinvader]

quote

For example, the Atari actually only runs on 5 or 6 volts, yet has a 9V power supply. I suppose there's a chance that the SMS (or any given system) wouldn't have such a limiting circuit, but that wouldn't make much sense from an electrical standpoint, since it's a fairly simple circuit  

 

I suppose you refering to the LM7805 regualtor? All that that is is a 'knock down' regualtor with a smoothing capcitor across the input. It will indeed regulate a higher voltage, but I wouldn't recomend it because it's wokring voltage shouldn't be exceeded and it is heat sunk to work at 9V.

 

quote

As for current, the rating on the power supply is what is supposed to be it's maximum

 

I'm not sure what you mean by this, but as long as you're providing more current than the system needs you'll be okay.

 

quote

if your console is drawing more current than it claims it can handle, then you are overworking the power supply

 

The system will only draw as much as it needs. If your system draws more than the PSU can handle then the PSU will blow.