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Old 12-05-2022, 01:24 PM
Darryl Ramm Darryl Ramm is online now
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Join Date: Nov 2010
Location: USA
Posts: 19,511
Default Re: No Input from AVID HD I/O

More info might help. But also much of the likely testing you just have to do yourself.

Has this ever worked for you? What changed?

Lights on the HD I/O box?

Is the HD Native showing up as the playback engine? If not is Pro Tools actually starting up and saying in the splash screen that it is HD or Ultimate?

Does the HD I/O pass Digitest?

Did you try Defaulting IO>{input, output}?

Have you checked that the DB-25 cables have correct pinouts. I don't care what it says on the cables, actually check with a multimeter/continuity tester.

You tried testing just the line level inputs? If nothing else check you have a correctly wired DB-25 cable and connect that cable between HD I/O output and input, and bung the signal gen plugin on an output(s) and test. Maybe test if any of the chassis digital inputs work.

Done any standard troubleshooting? Always start by trashing prefs. See under "Help us help you" up the top of ever DUC web page.
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