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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: Ami_GFX on September 13, 2011, 03:00:30 AM

Title: Alice Chip Sync Signal Voltage??
Post by: Ami_GFX on September 13, 2011, 03:00:30 AM

Does anyone know the voltage levels of the Vertical and Horizontal sync signals on pins 79 and 81 of the Alice chip. Are they TTL or a higher or lower voltage.

If they are TTL, I should be able to do a very simple mod to my DCE Flickermagic to change the sync signal source from the Alice chip to the VGA output of a Sync Strainer which would make the Flickermagic work with my Video Toaster in Genlock mode. If they are a different voltage, I could still do it but it would take a few more parts and bit more work.

Title: Re: Alice Chip Sync Signal Voltage??
Post by: Zac67 on September 13, 2011, 06:46:39 PM

Yes, they're TTL, both on the Alice chip and on the monitor port.

Title: Re: Alice Chip Sync Signal Voltage??
Post by: Ami_GFX on September 13, 2011, 11:34:15 PM

As I thought, Thanks