Last Saturday I somehow managed to carry out the combination of button pressings on the Mark Levinson unit that results in it being permanently powered - even when the ignition is off and the key is out.

Resulted in a flat battery by Sunday morning.

I've recharged the battery and pulled the radio fuse to stop it doing it again.

Before I take it to the local dealer, does anyone know how to undo this so it's only powered with ignition on???

The last thing I was doing on Saturday was unloading the CD's. May have switched off the ignition before the unit had closed the CD opening flap???

All help gratefully appreciated.

I would replace the fuse and do the same thing again, if that doesn't reverse it, then try doing it again
and switching off in the correct manner giving the unit enough time to clear everything it is doing, but
with CD's loaded, then unloaded, then switched to Radio.

Can't promise but sometimes it takes something like loading all the discs & unloading again
to correct a silly fault.

Hey Wozza - you are the man!

Popped the fuse back in, loaded then unloaded six CDs, switched to radio and hey-presto everything powers down like it should.

I've no idea why the unit stayed powered before but fault cleared and problem solved.

Thanks for your advice. Have a gold star!

Was hoping that would clear it mate, sometimes these things get in a bit of a tizzy.

Glad you are all sorted mate, maybe you can come along to a meet soon,
only a very few SC430's come to meets, maybe the next big LEXUS Meet
@ the Ace Cafe Saturday 20th December 11am-4pm would be a good
place to start