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5 поколение / Перестал работать порт расширения
« : 28 Январь 2018, 02:53:05 »
Предохранители все ок! Проверил.
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Что за беда?
smf wrote:
Some of the debug consoles don't have the oscillator hooked up to both inputs, so if you display the wrong one then you get no image at all.
This is true for some NTSC retail consoles, too - I've had a couple of SCPH-1001s that would simply lock up when you selected PAL mode (they stopped generating VSYNC). If you look at the back of the PU-8 board where the oscillators are (same place that's in the photos I posted above) there are two zero-ohm link positions - the one in that photo is for the PAL consoles, but the NTSC ones don't have that - they have a link installed in the position to the right which just grounds the PAL clock input on the GPU.
You can fix the lockup problem by moving the link to the same position it's in on the PAL units - although obviously installing both parts is a better solution if you have them available.
