Re: An LCD for your IIGS?

[mjmahon@aol.com (Michael J. Mahon)]

Scott Alfter wrote:

>I saw one of these at Costco this evening:
>
>http://www.sampoamericas.com/001/productitemspec.php?id=33
>
>It's a 17" LCD panel with a built-in TV tuner.  A check of the specs
>indicates that the VGA input can sync down to the 15.75 kHz used by (among
>other things) the video output on the IIGS.  (It also has a composite input,
>so 8-bit machines can also connect to it.)  If you're in the market for an
>LCD for one of your other computers, having something that'd also work with
>your II would be a nice bonus.  I'm currently using an NEC MultiSync 3D with
>my GS, but this is tempting...with the addition of a PS/2-to-ADB converter,
>I could hook the GS into the KVM switch along with my other machines.

I have a Samsung 170MP, which has similar characteristics, but I have
never tried it with the IIgs (don't have one set up at the moment).

It would be interesting to see how the IIgs video works with the LCD,
because the IIgs video has discrete pixels, and so does the LCD. Any
resampling irregularities (because of asynchronous clocks) would
cause vertical lines to "wiggle" around by an LCD's pixel's width.

Depending on how the resampling is done, this could range from
barely visible to really annoying.

To be assured of good results, the LCD resampler should use a
PLL to lock to the dot clock of the incoming video, so that there
is no random pixel shift.

-michael

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