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| From: Robin Harbron
Date: 2001-02-06
Subject: Converting NTSC Plus/4 to PAL...
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I was reading http://www.geocities.com/claude_nehme/Hardware/p4gfx.htm and found the following text:
"The TED IC is able to generate both PAL and NTSC compatible signals from a single IC. Only the crystal need be changed to go from one standard to the other. In PAL mode, there are 312 lines shown, while NTSC only has 262 lines of display. The line synchronization is the same in either PAL or NTSC mode. It's always 57 clock cycles per rasterline. The TED divides the supplied crystal frequency by 20 for PAL display and by 16 for NTSC."
Any idea how/where I can get this crystal to convert one of my NTSC Plus/4s into a PAL unit? I'm enjoying finally having a PAL 64 very much, and would like to check out (and maybe even do a bit of coding in) the PAL Plus/4 scene :)
--
Robin Harbron macbeth@psw.nu http://www.tbaytel.net/macbeth
http://www.psw.nu/
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