Sure, damage to the TV is possible, but not very likely! Just make sure that you wire it all up correctly, it's a very simple circuit.
Until you're into X you'll be outputting a signal well outside of PAL/NTSC spec (I believe the horizontal rate of your graphics card is roughly double that of PAL/NTSC). What you'll most likely see is two squashed images side-by-side on your TV before you get to X, or maybe just garbage is the TV fails to sync to anything. Again, it's _possible_ this could damage your TV, but i've never heard of this happening. If it's a modern TV it may not display anything and just stay blank until it receives an in-spec signal, YMMV. Steve On Fri, 17 Dec 2004 11:55:21 +0000, Steve Davies <[EMAIL PROTECTED]> wrote: > Tom Hughes wrote: > > >In message <[EMAIL PROTECTED]> > > Stephen Williams <[EMAIL PROTECTED]> wrote: > > > [snip] > > >>Take a look at the following sites for details: > >> > >>http://www.hut.fi/Misc/Electronics/circuits/vga2tv/ > >>http://www.nexusuk.org/projects/vga2scart/index.php > >>http://www.sput.nl/hardware/tv-x.html > >> > >>Personally I went for the last site listed. This will give you RGB > >>output to the TV, you can just output the raw interlaced DVB-T signal > >>(no de-interlacing required) and each horizontal line of pixels > >>generated by your vid card will map natively to a scan line on the TV. > >> > >> > > > >I was looking at the nexusuk circuit, but the sput.nl one looks > >the same anyway. Time to pay Maplins a visit I think... > > > > > > > Could someone with more experience tell me something - I am cautious of > building a VGA -> SCART converter, but perhaps I do not need to be. It > has always concerned me that I might send a signal that is WAY out of > range down the wire (frequency, voltage etc), and damage some aspect of > the TV. > > Is this possible? The TV is a reasonably recent 32" widescreen. > > How does the TV handle the text-mode signal? Does it sync well enough to > be displayed before X kicks in, or is the boot-sequence hidden? > > Is there a site where I can read-up on this type of issue? > > Many thanks for any answers. > Regards, > Steve > _______________________________________________ > mythtv-users mailing list > [EMAIL PROTECTED] > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users >
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