Found a Russian Megadrive 2 clone system..To my surprise, the board has a couple of chipsets supposedly related and known to MAME...These are the TA-06SD and the TV16B...
I'm trying to get the thing running in NTSC, since its PAL, but I haven't found any proper jumpers yet....The board has a PAL 26.6017 Xtal, and there are traces for an Oscillator (probably a 21.417727 for NTSC compatibility, who knows?) coming out of the TA-06SD chip....
Anyone else seen these?
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Thread: MAME in a Megadrive System?....
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08-29-2010, 05:09 PM #1Master of Shinobi
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MAME in a Megadrive System?....
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08-29-2010, 05:32 PM #2Component video for all Raging in the Streets
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That's a rather odd clone by Geniclone standards. How's the compatibility on it, and how good/bad is the video and the audio?
Jeez, where the hell do you get all these Geniclones? I want one!HATES ATGAMES WITH A PASSION
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08-29-2010, 06:38 PM #3Wildside Expert
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Is that a clone? for what i have eard those are the really late pal version where they are essencialy asian versions were the box was replaced to market europe i actualy had found one of those on sale complete in box, and also felt strange.
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08-29-2010, 07:18 PM #4It's Mathmatics Master of Shinobi
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it always surprises me how small the boards are. I don't know why a small M/B in a Megadrive just doesn't feel right.
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08-29-2010, 08:48 PM #5Outrunner
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That TA06 looks like a replica of the VDP. It even uses the same VRAMs and seems to have the same pincount.
I wonder how is it wired for using a MClk/2 crystal, because AFAIK the «genuine» VDP only has a ClockIN pin for the full frequency signal, and no built-in oscillator at the 2nd harmonic.
The other chip (TV16B?) is really wierd, it seems to include both processors, the comm chips and the YM2612, but no RAMs. This chip has no known sega-equivalent.
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08-29-2010, 08:48 PM #6The Black Dragon ESWAT Veteran
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Doesn't appear to output RGB, that's for sure, let alone Stereo sound.
Customized Sega Genesis Model 1 - VA3
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08-29-2010, 08:53 PM #7Outrunner
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Yeah, 5 wires...
10V, Gnd, Video, Audio, 5V. (5V for the external RF modulator)
Thats my guess
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08-29-2010, 09:13 PM #8Road Rasher
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It's just because you can't comprehend how well something as awesome as blast processing can be compressed.
Originally Posted by 64k
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08-29-2010, 09:34 PM #9The Soldering Ninja Cat! Raging in the Streets
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my uncle has that one too
not very common in mexico
2009 released
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08-29-2010, 09:36 PM #10The Soldering Ninja Cat! Raging in the Streets
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Also sound is not very good, video is, but expansion slot???
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08-29-2010, 09:51 PM #11The Black Dragon ESWAT Veteran
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Sounds about right to me.. Originally Posted by Jorge Nuno
Yeah, 5 wires...
10V, Gnd, Video, Audio, 5V. (5V for the external RF modulator)
Thats my guess
But taking a second look almost looks like 6 wires.. Perhaps a second ground, or maybe it does have stereo..Customized Sega Genesis Model 1 - VA3
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08-30-2010, 03:30 AM #12Mastering your Systems Hero of Algol
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am I seeing 2x small BGA chips there :O
Death To MP3, 
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08-30-2010, 07:36 PM #13Component video for all Raging in the Streets
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It looks like either 2 BGAs or two TSOP chips. Possibly some RAM? Or is there an ARM core hiding within those chips? I know one of Samsung's ARM cores is a little BGA square.
HATES ATGAMES WITH A PASSION
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08-30-2010, 08:23 PM #14Master of Shinobi
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They seem to be srams....And yes, there are 5 wires for the purposes mentioned above..Also, the TA-06SD has 133 pins and the compatibility is superb...Plays Virtua Racing and the Master System converter without any problem..Audio (mono)but acceptable (nothing weird or crazy like the @Games, Gen-X, etc), video is quite nice and sharp, I'm still trying to figure out a NTSC mod, pins and traces are very thin, can't hardly meassure them bitches
...
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08-30-2010, 09:03 PM #15Component video for all Raging in the Streets
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I hate thin traces, but what I despise are traces that are so frail just soldering to them makes 'em break. Grr... that pisses me off so much.
If I had one of these MegaDrive 2 clones, I would have helped you out, but I have no idea where to get them. Mind sharing where you got this MegaDrive 2 clone?HATES ATGAMES WITH A PASSION
"Neptunizing" progress: 5%(32X needs to be moved to another Genesis)
"Project Rebirth" progress: 100% - http://www.sega-16.com/forum/showthread.php?t=5538
"Project MAXED OUT" progress: 70%(YM2413 added, RCA jacks added, BIOS replaced, S-Video mod done, PAL/NTSC switch installed; internal Rapid-Fire Unit to be redone, internal 3D Glasses adapter to be assembled, Sega SG-1000 cartridge adapter to be assembled)
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