[Ti] noise from Ti only during battery use

Richard Grable rgrable at mac.com
Fri Apr 11 07:57:41 PDT 2003


This happened to my Ti500 and it turned out to be a bad power inverter. Hope you have AppleCare.

>
>I've recently noticed that when I operate my Ti 400 on battery power, I get a high
>pitched noise which is electrical (versus the sound of, say, a drive going bad). It



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