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Posted By

TLC
on 2010-10-30
09:38:14
 Re: interesting'n'funny stuff

Well...

VGA is analog RGB @ HSYNC >31kHz (synced by separate h+v sync signals).

SCART is either "composite", separate "luma+chroma" ( =s-video) or "analog RGB" @ HSYNC ~=15.6kHz (with a single composite h+v signal). Some late (unofficial) extensions allow component signals (YUV), with the sync still unaffected.

Connecting some VGA-ish equipment to some SCART-ish equipment directly is definitely only possible if the equipments are special (ie. either of them support the other's needs somehow). All other cases need conversion to some extent.

If you have some equipment, which can generate analog RGB @ hsync>31kHz on a SCART output, then there are chances that you can feed a VGA display with that signal, and you will see something (...you have to provide separate h+v syncs, which needs some electronics, but is pretty simple), preferably, a perfect, hi-res, crisp image. ...But I don't know of that many equipments supporting that. You can definitely do that if you have an Amiga 1200 (because the AGA chipset can do VGA-compatible HSYNCs just by itself).

Composite and S-Video would be pretty tough... these are inherently 15.6kHz... so unless you have a multisync monitor (which is a VGA-monitor capable of HSYNCs way below 31kHz), and unless you do the PAL/NTSC/whatever color to RGB conversion yourself, you're out of luck. AFAIK no VGA monitors (be standard or multisync) ever supported composite color "out of the box" anyway.

Ps. Christian (Hi! happy ): I can't think of possibilities how you could get that idea... wink))



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