I have had the same issue in the past.. Provided you have taken good care of the unit and stored it in a dry environment, it is either due to a dying LCD or a bad clock oscillator (which is controlling the LCD). This is a common issue across the entire range of Proteus style units. It is more likely to be the clock osc but it can't hurt to replacing the LCD first to see if that helps. I only say that because you can get a replacement 24x2 LCD for around $5USD if you are able to solder the ribbon cable yourself.
Do you have access to another Command Station (of a friend, relative, lover...)? I would try running your XL-7 with another PSU.2016-07-01 4:34 GMT+02:00 wyschmatt@... [xl7] <xl7@yahoogroups.com>:
Hello all--
I've recently put my XL7 back into my roster, forgetting that there had been problems plaguing it when it went into retirement.
The two problems are:
-->Locking up while booting. This is intermittent, but it has almost always done it. I think...I've had this thing for almost ten years; it's difficult to remember. It usually stops somewhere in the screen with the blocks figures/progress bar part, not with words. Occasionally it locks up after being on too. I figure this usually has to do with some major midi overload, but they could be related.
--> The display screen is sometimes full brightness, sometimes flickers, sometimes darker.
I know many will deride me for this, but the way I have always solved theses problems is by giving the unit a firm whack or two or five. Often this works.
Anyway, I'd like to move beyond abusing my gear and towards a more long-term and sophisticated solution.
I've heard about problems with the power units for the Command Stations.
It passes the system check in diagnostic mode. All the wire harnesses are tight; i've checked them so many times. All the screws are in.
Anybody have any suggestions?
Cheers,
Wyatt
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