Re: Repairing a QS8: CALLING ALESIS TECHS!
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Posted by Reid on September 01, 2006 at 10:02:38:
In Reply to: Re: Repairing a QS8: CALLING ALESIS TECHS! posted by Ben Weaver on August 30, 2006 at 08:59:19:
I've discovered one broken address trace on the bus, and one other open pin on one of the chips. I'll try soldering jumper wires on those and see what that does. One other surprising thing I found (the hard way) is that the 7805 regulator's heatsink gets painfully hot, but I've been informed by a former Alesis employee who worked on this unit that that's normal. Sure enough, the datasheet says its rated for up to 125C, and it feels like it's damned near boiling! I didn't try a spit-test. :)
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