Without opening the unit, i'm beginning to think that the problem is located at the power transformer. Perhaps they have used cheap transformers with low quality copper wires that have an increased resistance, and in turn they generate more heat. Heat, as we all know, damages chips...
There are two solutions for this situation: cooling the transformer (and that would include some modding of the case and the using of some kind of fan), and the use of a stepdown transformer. The fan idea seems cool, but it will add unwanted noise and you'll have to open your XL7 and do some risky maneuvers to get it done. The stepdown converter, on the other side, moves the problem of heat generation outside the unit. Those converters get hot,and that means that in the end you will get heat, but in this case it will be outside of the unit (and that's the idea with fans too), adding to stability. I haven't had time to complete the temperature tests, but the difference is obvious by simply touching the unit.
Perhaps we need to add this to the FAQ...
Jose
----- Original Message -----
From: groakes2000
To: xl7@yahoogroups.com
Sent: Thursday, January 06, 2005 8:17 PM
Subject: [xl7] Re: 220 vs. 110 volts
On another note, my continuing problem with Fatal Errors has been
somewhat ameliorated by using a stepdown transformer running at
110v. Time between failures now stretches out to over 5 hours....
Which reinforces the thought that maybe my problem is related to a
heat related failure of a component whose tolerances are
rather "fine"....
cheers
Greg
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Re: [xl7] Re: 220 vs. 110 volts
2005-01-07 by José Sáez