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
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
Last edited by alec006; 12-20-2012 at 08:00 PM.
"...leave love bleeding, in my hands, in my hands again..."
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.
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.
Any pictures of the labels?
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.
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.
Based on that picture your model isn't the one with the best sound, the best one has an FCC-ID code reading FJ846EUSASEGA. Just saying "High Definition Graphics" isn't enough to find a good unit. It could be sounding worse if the capacitors are starting to fail, but most of these systems are still fine as they didn't use cheap surface mounted caps and it's not really that old yet. I've come across several 70's era receivers working fine with the original capacitors, those tend to need replacing now due to aging. You can still try to replace them if you want.
Wrong. As long as it says HIGH DEFINITION GRAPHICS on the case, the motherboard revision is anything from VA2 to VA6, in this case, VA6 due to the shorter FCC ID. If it sounds like crap, it may be possible that the capacitors are crap, OR someone swapped the top on the console (not very likely, but it's always possible). Dashopepper should take a picture of the ports at the back of the console because if they're not placed where they should be, someone swapped the top off of a non-HIGH DEFINITION GRAPHICS VA7 Genesis Model 1 for one from a VA2 to early VA6 HIGH DEFINITION GRAPHICS Genesis Model 1.