Re: Atari SC1435 Monitor on the Apple IIgs?

[nyder <nyder.23@gmail.com>]

On Monday, April 1, 2013 7:08:29 AM UTC-7, nyder wrote:
> On Thursday, March 28, 2013 6:41:08 PM UTC-7, Tempest wrote:
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> > On Thursday, March 28, 2013 5:31:53 PM UTC-4, nyder wrote:
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> > > And I don't make my cables pretty, just functional.
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> > Functional is all I'm looking for. :)
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> Okay, looking at pinouts and I see a potential problem.  
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> The Apple IIgs is analog output.
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> It doesn't have a horizontal sync listed. https://support.apple.com/kb/TA36688?viewlocale=en_US
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> According to this: http://www.gamesx.com/avpinouts/sc1435.htm
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> The monitor wants both Horizontal & Vertical sync.
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> And since I have commodore monitors, they take a composite sync in analog mode (want both for Digital Mode).
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> I would think that the SC was a digital monitor, but it doesn't have the Intensity pin.
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> According to this: http://nfggames.com/forum2/index.php?topic=583.0
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> I will need to separate the sync with a LM1881 chip.
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> So, to make this cable, I appear to have to do something I haven't done before and have no way to test it.   Adding a chip to the cable isn't a big deal, but not being able to test it is.  
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> Wonder if someone in my local old computer club has an Atari monitor...

I do have a Sony CPD-1302 monitor.   And from what i read in it's manual, it will take both a c-sync and a separate H & V sync.  So i guess I can use that to test, as long as it's still working.

now to find a LM1881...