Composite, S-Video and Component Comparison Shots

[electrochip]

So I modded a couple of units with S-Video using a CXA1645 to convert the RGB into S-Video and a CVS287 to convert RGB to Component. I noticed a big difference in clarity and colors. It looks like the original composite signal is washed out on the TG16/PCE/Duo and much better with the CXA1645. I'm using a 27" JVC CRT SDTV.

TG16/PCE/DUO Composite




Composite out from CXA1645




S-Video out from CXA1645




Component out from CVS287




TG16/PCE/DUO Composite




Composite out from CXA1645



S-Video out from CXA1645




Component out from CVS287




TG16/PCE/DUO Composite




Composite out from CXA1645



S-Video out from CXA1645




Component out from CVS287

[ceti alpha]

Nice comparisons.

It's not "OMG! L@@k AT TEH DIFF!!", but you can definitely see where the SVid is cleaner and sharper.

[SignOfZeta]

I'm using a JROK s-video encoder for my MVS and the results are absolutely amazing. Way WAY better than any (non-modified) Neo Geo home system.

[electrochip]

It looks much better in person, honestly. Reading text in composite makes my eyes bleed

[Tatsujin]

Sure, S-Video >>>>>>>> AV Composite, that's absolutely no new story. But I am more amazed by the composite comparison between oiginal output and CXA output.

[electrochip]

Sure, S-Video >>>>>>>> AV Composite, that's absolutely no new story. But I am more amazed by the composite comparison between oiginal output and CXA output.

Me too, I couldn't believe the difference in composite outputs. Anyways I added component out as well.

[nat]

I'm shocked at the difference between component and S-VIDEO in that Castlevania shot.

[electrochip]

me too, I'm going to do more comparisons and see if it's the tv adjustments or I need to add pots on the RGB lines.

[electrochip]

ok my color saturation was WAY off on Composite and S-Video, I fixed and uploaded new pictures. Sorry about that, I just got the tv a few weeks ago and haven't fine tuned it yet. I think I have it just right now.

[SignOfZeta]

Sure, S-Video >>>>>>>> AV Composite, that's absolutely no new story. But I am more amazed by the composite comparison between oiginal output and CXA output.

I'm not that surprised. I mean, look at how composite looks on systems like Neo Geo AES or Mega Drive (f-ing awful) compared to PC Engine or SNES (rather good). Assuming there is no problem with the RGB video coming straight out of the video chip then the issue with the Neo and MD must be crappy encoders. Their issue being, I assume, that they have their composite circuits integrated into other chips which causes noise and such from RF and the sharing of voltage supplies with other things.

[electrochip]

Sure, S-Video >>>>>>>> AV Composite, that's absolutely no new story. But I am more amazed by the composite comparison between oiginal output and CXA output.

I'm not that surprised. I mean, look at how composite looks on systems like Neo Geo AES or Mega Drive (f-ing awful) compared to PC Engine or SNES (rather good). Assuming there is no problem with the RGB video coming straight out of the video chip then the issue with the Neo and MD must be crappy encoders. Their issue being, I assume, that they have their composite circuits integrated into other chips which causes noise and such from RF and the sharing of voltage supplies with other things.

The Neo's and the early MD's use the craptastic CXA1145, rainbow banding and fuzziness everywhere. The last MD models used the CXA1645, which gives better composite and S-Video.

[SignOfZeta]

Too bad the sound went to shit on the MDs right about the time the video got better.

[Tatsujin]

Sure, S-Video >>>>>>>> AV Composite, that's absolutely no new story. But I am more amazed by the composite comparison between oiginal output and CXA output.

I'm not that surprised. I mean, look at how composite looks on systems like Neo Geo AES or Mega Drive (f-ing awful) compared to PC Engine or SNES (rather good). Assuming there is no problem with the RGB video coming straight out of the video chip then the issue with the Neo and MD must be crappy encoders. Their issue being, I assume, that they have their composite circuits integrated into other chips which causes noise and such from RF and the sharing of voltage supplies with other things.

That's exactly why I am so surprised, because I thought the PCEs composite was already as good as possible. But it was not.

[SignOfZeta]

Ah, yeah, I see what you mean.

[ccovell]

Those are some nice comparison shots.  If you have Doraemon handy, could you take some comparison pictures of the title screen?  On this screen, Gigazombie's "head jewel" and the (bloody?) red dot on Nobita-kun's hand (look for it) are good indicators of colour wash-out with composite (and possibly S-Video?) encoders: