Re: TI-H: Broken 83
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Re: TI-H: Broken 83
Thanks, I'll try it. At least it wasn't salt water.
Andrew Hivner
----- Original Message -----
From: Bryan Fields <kb9mci@urbancom.net>
To: <ti-hardware@lists.ticalc.org>
Sent: Saturday, February 12, 2000 11:48 PM
Subject: Re: TI-H: Broken 83
>
> i have done repair of water damaged equipment before and this is the
> procedure i use.
>
> the first thing to do is to remove the pcb from the case and soak it in
> ^ distilled ^ water mixed with 25% alcohol. (to break the surface
> tension of the water) next, flush it with distilled water and 40%
> alcohol. a wash bottle works good for this. let it dry for 2 days then
> power it up.
>
> if it still does not work check the membrane keypad. try a pencil
> eraser carefully on the trace. (use a pencil that has a red eraser these
> work better IMHO) the next thing if that does not work, is to look at
> the keypad it self. these are hard to fix because the conductive surface
> is easily by salt water. try bending a very small piece of copper wire
> in the form of a staple and pushing it into the bottom of the key. that
> should fix the key
>
> also QST (a magazine for the radio amateur) awhile back published an
> article on repairing water damaged radios. i will search my archives
> here if you would like to take a look at it. just let me know where to
> send the copy.
>
> Andrew Hivner wrote:
> >
> > Here's a question,
> >
> > I just received an 83 with some water damage. At first it wouldn't turn
on,
> > but I opened it up and fixed that somehow. :) However, now other things
> > don't function properly. I'll make a list:
> > 1. Link Port (Error in xmit occurs)
> > 2. Various buttons: STO> button, tan button, and ^ button (no response
when
> > pressed)
> > 3. one row of pixels
> > I would like to know if any of you have any ideas on how to fix these
> > problems.
> >
> > Thanks,
> > Andrew Hivner
>
>
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