RGB/S-Video Convertor Picture quality

[Timh]

Hi All

Have you got a RGB/S-Video Transcoder? If so what is the picture quality like on your projector?
The reason I ask is, I find that more and more I use my Projector for watching live Digital broadcast's, but I find that composite tends to look a bit Ropey.
I have heard of an RGB/Componant transcoder out soon, but I cant use one of these yet, as I have no componant switching on my Amp.

Is there much of a jump in picture quality when using one of these RGB/S-Video convertors?

Cheers

[Timh]

Lekropacks is £50 here

RGB/Svideo £65 here

Anyone know which is the best?

[Paul D]

I use the Lekropacks RGB to Svideo model, and find the picture quality excellent. But the built in "macro defeat" moves the image slightly to the left.

I use it to convert RGB from my NTL Digital box etc.

[Timh]

I use the Lekropacks RGB to Svideo model, and find the picture quality excellent. But the built in "macro defeat" moves the image slightly to the left.

Thanks Paul, I will keep that in mind.

[General Skanky]

Tim, I'm hoping to be able to answer that one by the weekend. I will be seeing a convertor in action. I'll let you know.

[Timh]

Guy

Which one will it be? and will it be on the Panny?

Cheers

[General Skanky]

It belongs to Retronana. He's bringing it round Saturaday to maybe trade for my old kit stand. It's the Lektropacks one.
Yep with the pj.

[gizlaroc]

i use the letropacks one too and the picture is far better than i was expecting.
and there is small screw adjuster that will shift the picture over too the right a bit more, this is inside the unit itself on the pcb.
still not perfectly central bar far better than out of the box.

[ReTrO]

I have used many of the JS RGB SCART - s-video convertors, can't say I've had any problems with them. It gives a much better picture than composite, though your best long term solution will still be to get an RGB to YUV transcoder, even if you have no switching on your amp, just go direct.

[Timh]

I have used many of the JS RGB SCART - s-video convertors, can't say I've had any problems with them. It gives a much better picture than composite, though your best long term solution will still be to get an RGB to YUV transcoder, even if you have no switching on your amp, just go direct.

I'm affraid my componant sockets are already taken up by the dvd player.

Thanks for all your opinion's.

[richard plumb]

How about a normal phono switcher? Component goes via phono leads, and some people said that 480p is less bandwidth intensive than hidef, so you might be OK with it.

[Beamer]

Tim

These converters are all pretty well based upon the same idea. They take the RGB signals and OR them with resisters to give you the Chroma info. Sync with Lumanance is stabalised by using a sync seperater chip LM1881 or similar devices on quality solutions or simply fed from the composite source on the cheap and cheerful. You are mostly paying for the power supply and construction.

Dual NTSC & PAL solutions cost a little more as I believe they need to switch the crystal frequency in the sync seperater after detecting NTSC.

Bottom line is that they will all probably give you a similar result subject to the converter incorporating a Sync seperater to remove jitter.

[Timh]

Retro

When you say the picture shifts to the Left, does that meen I will get an un'used area of screen to the right hand side?
If so I may go for the one from JS.

Thanks for the help guy's.

[General Skanky]

Tim, it'd be like the shift you get on TV's where the image is slightly off centre. You may only notice it more on a big screen, cos it's a big screen!

But, what about this - http://www.rgbtosvideo.com./rgb-vga/rgb-vga.htm ??????

Ok I know it's meant for plasma, but the set up may be suitable, maybe? I'll see what they say as the synchs etc could all be potty.

[JohnS]

Tim

I have used both the lektropacs and the keene versions of the rgb-svideo convertors on my tosh 56.

Image quality from both seems to be about the same.

As people have posted the lektropacs version shifts the picture and even after adjusting it with the internal screw, was still off centre. (The picture on the screen was still there but whenever you pull up the epg or search and scan banners they were noticably to one side). The keene one did it too but not so much so i settled on that one.

sidenote for other tosh rp users

I have since found a setting in the menus that alows you to shift the horizontal and vertical position of the picture with the different screeen settings which largly gets over any picture shift problems.