Model 1 SEGA Genesis "High Definition Graphics" label vs. non-hi def label version

[treismac]

Is there any real difference between the "High Definition Graphics" label version of the SEGA Genesis Model 1 and the Model 1 that does NOT have the "High Definition Graphics" label? From what I recall, Model 1 is the superior of the three Genesis models, but is there any real variation beyond cosmetics within the top tier?

[Greg2600]

The earliest Genesis "HDG" model didn't have the license screen appearing at the start of every game. I believe in general the models without HDG had sound that wasn't as clear.

[alec006]

Is there any real difference between the "High Definition Graphics" label version of the SEGA Genesis Model 1 and the Model 1 that does NOT have the "High Definition Graphics" label? From what I recall, Model 1 is the superior of the three Genesis models, but is there any real variation beyond cosmetics within the top tier?

There's actually a bunch of stuff between the many revisions of Model 1 Genesis/MegaDrives. From video quality, to better audio circuits and more, there's a post on Sega 16 all about it:

http://www.sega-16.com/forum/showthr...951#post161951

[Oldskool]

My High Definition Graphics Genesis has the license screen. But it also has the good audio circuitry. It does have the video chip known for rainbow banding however. It's only noticeable on black screens at least. The RGB/Component video out of it is excellent.

[Dashopepper]

I made the mistake of going out and buying The high definition graphics model 1 because after reading a thread I thought it would have either better graphics or sound then my non HDG model 1. Turns out the audio was absolutely horrible. I still use my non HDG Sega.

[MaxWar]

I made the mistake of going out and buying The high definition graphics model 1 because after reading a thread I thought it would have either better graphics or sound then my non HDG model 1. Turns out the audio was absolutely horrible. I still use my non HDG Sega.

Maybe it needs a recap. Do you know what revision motherboard is in there?

[thegamezmaster]

Any pictures of the labels?

[Ace]

I made the mistake of going out and buying The high definition graphics model 1 because after reading a thread I thought it would have either better graphics or sound then my non HDG model 1. Turns out the audio was absolutely horrible. I still use my non HDG Sega.

Clearly, your HIGH DEFINITION GRAPHICS Genesis Model 1 has a hardware issue. Many of the really early systems manufactured in 1989 are in need of a complete capacitor replacement and can have absolutely filthy sound if the caps on the audio amp are going bad. My earliest Genesis Model 1, which is a VA2 motherboard revision manufactured in 1989, had a serious amount of distortion and very muffled sound due to bad capacitors. Consider replacing the capacitors in that HIGH DEFINITION GRAPHICS Genesis Model 1 as MaxWar stated.

[Dashopepper]

So if I did a capacitor swap would you think it would be the same/different/better in anyway then my other system? Unfortunately the non-HDG sega has a cd/32x attached to it so opening it up or checking the serial numbers wouldn't be very easy. But I had them running side by side and dont rember any startling graphical difference, only the audio.