[SOLVED] My SegaCD and this random power supply thing.

[aclbandit]

I've come upon a random power supply that might work for SegaCD/Model 1 Genesis (since I think they're the same thing, right?).

It inputs 120V AC (which means it's from my country) and it outputs 10V DC. The thingy which I *think* indicates the polarity looks something like this:

(-)---C---(+)

The only difference is that the SegaCD power supply one looks like this:

(+)---C---(-)

Can I use this without blowing anything up/causing fires/killing my Genny or SegaCD fuse?

[dreamcaster]

The upper one is negative polarity, the lower positive polarity. This could be an issue - given that most Sega systems require a negative centre.

[aclbandit]

The upper one is negative polarity, the lower positive polarity. This could be an issue - given that most Sega systems require a negative centre.

Well, I certainly won't even try it unless someone gives me a definite go-ahead :puppydogeyes:

[dstone]

Can't be used unless you reverse the polarity on the power supply (sometimes they have a little switch, or you have to cut the wires and swap them *and re-label the ps as such*). I've fried a few things to find out the hard way...

[aclbandit]

Can't be used unless you reverse the polarity on the power supply (sometimes they have a little switch, or you have to cut the wires and swap them *and re-label the ps as such*). I've fried a few things to find out the hard way...

Okay, just cut the two wires and swap them? Will that actually work? Just label which went where, and do it the other way?

The "wires" I'm cutting and swapping, that refers to clipping it near-ish to the connector end where it would go into the Sega, correct?

[Sabz5150]

Please note the Sega CD uses 9 volts.

[FABombjoy]

All Genesis/CD hardware will work with 9 or 10V

[izarate]

Okay, just cut the two wires and swap them? Will that actually work? Just label which went where, and do it the other way?

The "wires" I'm cutting and swapping, that refers to clipping it near-ish to the connector end where it would go into the Sega, correct?

Yeah, pretty much.

[aclbandit]

Yeah, pretty much.

Amazing! After clip, flip, and solder (followed by a bit of black tape to stop fires) it works great, on both my segaCD (whose power supply was slightly, but not fully, borked (had to keep it pushed up a little to make it work)) and my Genesis Model 1 (which never has had a PS). Thanks a lot, guys-- I'll keep this nifty polarity switching trick in mind for future nonsense.

[duo_r]

One final safety question - what are the amperage ratings (listed as A or mah)? For your new AC adapter, make sure it has either the same or more amperage compared to your old AC adapter. If not it isn't giving enough juice to the Sega CD unit. The rule for amperage is always give same or MORE (never less). Voltage rule is always match as closely as possible, and polarity rule as u figured out needs to be exactly matched.


I've come upon a random power supply that might work for SegaCD/Model 1 Genesis (since I think they're the same thing, right?).

It inputs 120V AC (which means it's from my country) and it outputs 10V DC. The thingy which I *think* indicates the polarity looks something like this:

(-)---C---(+)

The only difference is that the SegaCD power supply one looks like this:

(+)---C---(-)

Can I use this without blowing anything up/causing fires/killing my Genny or SegaCD fuse?

[aclbandit]

One final safety question - what are the amperage ratings (listed as A or mah)? For your new AC adapter, make sure it has either the same or more amperage compared to your old AC adapter. If not it isn't giving enough juice to the Sega CD unit. The rule for amperage is always give same or MORE (never less). Voltage rule is always match as closely as possible, and polarity rule as u figured out needs to be exactly matched.

The new one says output 1200 mA, and the old one is 1.2A. If my memory serves, that's exactly the same thing. But I never was good at those silly unit conversions, so...

EDIT: Also, thanks for the heads up.

[duo_r]

Yup! Your good!


The new one says output 1200 mA, and the old one is 1.2A. If my memory serves, that's exactly the same thing. But I never was good at those silly unit conversions, so...

EDIT: Also, thanks for the heads up.

[raylydiard]

just buy the sega ac adatops on sega parts.com or ebay

[aclbandit]

just buy the sega ac adatops on sega parts.com or ebay

I didn't wanna wait, and this adventure worked perfectly ^^