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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: Astral on October 06, 2008, 01:25:16 AM
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I would like to install a HARDWARE NTSC/PAL switch in my CD32. I've searched all around, and can't find any info on doing it anywhere. Does anyone know a link or know exactly how this can be done?
I am aware of the early startup mouse PAL/NTSC switching method and so on.
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Follow the pin #41 of Alice, take out the 0 Ohm resistor (PAL/NTSC selector).
On the Alice side solder a wire to a switch. Add a 4,7k resistor to Vcc (PAL) and on the other pin of the switch, put a 10k resistor with the other pin grounded.
I don't take responsibility for the hack, be warned.
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So will this allow the CD32 to play all PAL games properly? I live in Japan and just got one of the Phillipine CD32s, got a Sharp Aquos LCD TV but worried if I can play CD32 games and if the TV will support PAL from the CD32.
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The hack only change the screen refresh rate. The video encoding will stand NTSC in the machine.
For a proper conversion, you need to change the entire video encoding circuit, plus the main crystal.
LCD TVs are a {bleep} for 50Hz refresh rates (PAL).
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Might add that I've done this mod on a few A500s, 2000s and my 3000 without any resistors. There's an internal pullup in Alice/Agnus, so they aren't really required. Just connect a switch to the jumper/soldering pads; closed: NTSC, open: PAL.
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@ Zac67
That only works on early Amiga's made after the introduction of the Fatter Agnus and before the 8375 SuperFat Agnus.
Doesnt work with A500+, A600, A1200, A4000 or CD32.