Problem with Lexicon MX400

It MAY be waiting for an UPDATE of firmware via USB. In other words you may have triggered an update mode that it will not exit without sending an update. The second possibility that comes to mind is that one of the buttons or the switch behind it may be stuck which can lock up the processor. Look for a button stuck in or that feels un-normal.

hello I have the same problem, I'm told that updating the firmware of the Lexicon MX200 is solved but it turns out that my pc does not recognize the device via USB to update, any solution? thank you very much

Check the power adapter for the Lexicon. The USB may not be supplying enough without the adapter to run this.

The software is by Stienberg and is called "Cubase" that is delivered with the Lexicon. The Omega doesn't really have any software to speak of except for the drivers. Browse the software disk looking for the section containing the drivers. When you install it, it will create a Lexicon folder with the root of your C drive and in it will be an Omega folder. In that is a driver folder and a folder of help files. In the Driver folder folder you will find the installer file "Omega Setup". Launch that program to install the drivers. Please note I have one of these and it can be frustrating to get things working. Make sure in the PC in the control panel "sounds and devices" that under the tabs that the Omega is the device to send and receive and for voice. Once you have done the install, the Omega should be in the list of available devices to select as default.

Easy answer: You DON'T set the polarity because this particular device takes a 9 VAC at 2.1 amp adapter. (Not a DC one like so called universal ones)
It sounds like you have one of those universal adapters which probably would not deliver the 2.1 amps required even if the lexicon took DC. Note that stuff might light up, but the unit will not work using a DC adapter..

You had better get an official power supply for this unit as what you have will NOT work, period!

I did a quick search to try and find a link to a supplier, but they are RARE !!! Every one I found would require you changing the plug to match the Lexicon.

You should just order the correct one from Lexicon.

I suspect the problem is with the software setup in your PC. Verify all the options and also verify that the AUDIO system is assigned as stereo and assigned to the Lexicon for both in and out... Also check any "PAN" control settings. There is a possibilty that the Alpha has a dead channel...

Try putting a stereo signal into the 1/4 inch jacks and see if both record... if NOT then take it for repair under warranty... I had a Lexicon Omega that had a problem myself... warranty repair...

One can burn up equipment if you have powered parts of it from different sources...such as connecting things together that get their power from different receptacles. Ground bounce and fault currents of defective equipment can burn up things. You will probably have to send your unit back to the factory for repair.

Make sure you have NO antivirus/antispyware/antiadware or other resource hogging background programs running while processing the audio. These programs hog resources to the point that the buffering within the audio devices is overrun causing gaps.

The Lexicon Alpha does NOT have phantom power. The mic input expects a standard mic or a "self-powered" condensor mic. This means that you will neex external phantom power. There are power units available that use 9V batteries for this.

Dan

http://www.lydrommet.no/artikkel/vis.php?id=37514try this click for the manual I have used it before for the same unit and the manual is here....Good luck Andy