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Expert: - 10/1/2010


Question
I have a 2002 Lexus es300 with the Mark Levinson Stereo (factory system) that wont shut off,cant change volume (its up high) or channels, screen is blank, system wont open or shut.

Thank you.  

Answer
Well, you can always shut the system off.  Just pull the power to it.  That is easily done by just removing/disconnecting the 12v power line that is feeding it.

The problem could be related to the ignition switch, the OFF/ON switch to the unit or a power supply failure.  In any event you will need someone with Mark Levinson experience to diagnose what is going on.  The ML systems are very sophisticated and not just anyone can figure them out.  Not all Lexus dealers have an audio specialist on staff so check around to make sure you find someone who knows how to work with them.

Car is old enough that it may be normal wear and tear on the system and it may be time to just replace the stereo unit; but talk with a ML qualified tech first.  

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Cleggsan

Expertise

Audio Design Engineer; systems, loudspeakers, cd/dvd players, etc. I am knowledgeable in all high end audio equipment and installations. MAKE SURE YOU GIVE A MAKE AND MODEL NUMBER AND CAR IF IT IS AN AUTO QUESTION. Note: I am getting some who ask good questions that take a lot of time to research but then the questioner fails to read the answer. Please don't ask questions unless you are seriously looking for an answer. If you find an answer to your question otherwise then let me know with your reply. Thank you.

Experience

Have been associated with audio design, standards, testing and component systems for over 40 years.

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Life Fellow Member of Audio Engineering Society Life Senior Member of Institute of Electronic and Electrical Engineers

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Review technical manuscripts for IEEE Spectrum Write occasionally for high-end audio publications

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BSEE/MSCS/MBA

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Past Employee/advisor to several well known audio products manufacturers

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