Homemade RF Shielding

[PCB_Master]

Can you make RF shielding? I foolishly threw away my MD1's top shield. I heard tin foil works but I want something a bit more permanent...

[goombakid]

Sheet metal, maybe? Isn't that what most RF shields are formed from? Probably could just reform the shield.

Otherwise, going on the foil idea, perhaps aluminum tape might work, tape up the inside of the upper cover. Just throwing out ideas.

[raylyd]

Why dont you just buy this
http://cgi.ebay.co.uk/Sega-Megadrive-Genesis-1-STEREO-RGB-SCART-cable-lead-/200547673513?pt=UK_VideoGames_VideoGameAccessories _VideoGameAccessories_JN&hash=item2eb192a5a9

i got one and the best cable i ever bourght forget the crappy rf box
or you could go for a s/video mods?

[PCB_Master]

I actually don't use the RF box. Besides SCART is pretty useless here in the states. I have made my own connector on the back for my composite, the picture is fine but I get a hum from the speakers, even if I use the headphone jack...

[ASSEMbler]

Are you getting that much interference?

[raylyd]

Why is scart useless in the states dont have scart sockets on the tvs or something.?

[BM-Viper]

Why is scart useless in the states dont have scart sockets on the tvs or something.?

Exactly, american tvs don't support scart, the plugs aren't there. never have been either.

[PCB_Master]

Are you getting that much interference?

In a word, yes.

[raylyd]

no scart sockets what do they use instead of scarts.
plus what about s/video mods or a hdmi to scart converter.?
you would see the best picture better than rca or rf.

[Elijah]

S-video is generally considered sufficient, and there is also component on more recent sets. That is on par with RGB SCART.

[raylyd]

That sucks though no scart sockets.

[tails92]

S-video is generally considered sufficient, and there is also component on more recent sets. That is on par with RGB SCART.

No, S-Video is lower quality than RGB. I have never been in the US but from what I've read on the internet some TVs have separate RCA jacks for every RGB component, so a cable for red, another for green, and another for blue. For instance, the official video cable for the PSOne outputs component, while the one I use now is unofficial and crappy but outputs RGB via SCART. The difference in video quality is reeeallly big, my current cable even if crappy gets me a much better picture.

I don't know why they did not put SCART on US televisions, it might be another case of stupid nationalism like for electrical outlet sockets...

[Elijah]

You misunderstood me. I simply said that S-video was generally considered sufficient (i.e., certainly better than composite), not that it was as good as RGB. I said that component is on par with RGB.

By the way, the "default" PlayStation cable is not RGB, it is a composite cable. What you seem to describe is component (separate red, green and blue wires), but that was never released for PS1, since it did not support that output; only the PS2 onwards support it. You are probably confusing it with a composite cable, which has one yellow wire for video and a red and white for audio. That was produced for PS1 and would be much worse than RGB (even worse than S-video), so that is what you are most likely referring to.

[tails92]

Not the case, the PS1 does indeed support RGB: http://www.gamesx.com/avpinouts/psxav.htm

[Elijah]

You misread my post again. I said component...

[tails92]

Yeah, I misread your posts because I actually thought composite carried R, G, B while it carries YPbPr. :P

[Alchy]

Yeah, I misread your posts because I actually thought composite carried R, G, B while it carries YPbPr. :PYou have composite and component mixed up.

Component = YPbPr = one Luminance signal and two colour signals, blue and red (this is putting it simply. The remaining colour, green, is derived from the three signals). It is called "component" because each wire carries a different fundamental component of the final image.
RGB = Red Green Blue, three colour signals.
Composite = a composited video signal, on a single wire. All the colour and luminance on one signal; obviously inferior.


That sucks though no scart sockets.It's about the only good thing going for European gamers.

[MottZilla]

Few people, but some, in the US buy Professional video monitors or Arcade monitors that take analog RGB at 15khz. I got such a monitor awhile back and bought some passive SCART switch box where you can plug in two SCART cables to the box and a SCART cable goes out of the box. I covered one of the two SCART ports, took the SCART end off and wired it to a PC VGA 15 pin dsub connector as well as RCA audio jacks. So I can plug in a Euro SCART RGB cable for systems like SNES, PS1, Saturn, MegaDrive, and so on into the box. The SCART cable leading out of the box goes to a small project box that has my 15pin VGA style dsub connector and RCA/phono audio connectors. II picked up a VGA to BNC cable somewhere along the line that I just plug into the box and the BNC connections to the BNC analog RGB inputs on my monitor.

Anyway it works great. It wasn't hard or expensive to do really. So if you still retro game in the US and care about picture quality it isn't that crazy to pickup a good analog CRT with RGB input. But European gamers certainly have it easy since they don't have to make much of an effort at all. But atleast US games can be happy they never had to deal with the PAL50 framerate.

[PCB_Master]

I hate to crash the whole "Component vs. SCART" party but my problem is fixed. There wasn't any interference from the RF box, I was using a power supply with too little amperage. TMEE confirmed that this would indeed cause a hum on the speakers.

[raylyd]

i was told you can get hdmi to scart would
i know scarts are not on your tvs you have seen the best picture until you have one mate its just the best

[Twimfy]

SCART was a french invention. The rest of Europe jumped on the bandwagon when everyone realised how convenient it was.

Only thing which pisses me off about it is that there is a difference between RGB scart and composite scart. Can't understand why they don't just make them all fully wired RGB.

[Alchy]

i was told you can get hdmi to scart would
i know scarts are not on your tvs you have seen the best picture until you have one mate its just the bestNone of that makes any sense. Is it too much to ask that you stop and read before you post?


Only thing which pisses me off about it is that there is a difference between RGB scart and composite scart. Can't understand why they don't just make them all fully wired RGB.It's not a true SCART cable unless it's properly wired, which should include composite as well as RGB (check the default SCART pinout; composite is used for sync by most consoles, anyway). The exceptions you're talking about are cheap composite cables that happen to have a SCART block on the end. Essentially this is just a cost issue, composite cables only need three wires + ground, proper RGB SCART cables need a few more.