From: MM (mm_at_abasurf.ch)
Date: Sun Jan 26 2003 - 09:15:46 PST
"Mark" wrote @ 26.1.2003 14:54 Uhr / <markr13_at_comcast.net>:
> My understanding from what I've gleaned from the list is that a screen
> replacement will work if all else fails.
>> What do I do if cleaning the contacts does not work. I have read the
>> archives and checked out the wiki wiki Newt website. I am really
>> getting depressed about this.
>>> It seems that the best way to fix them is to open your Newton and then
>>> clean the contacts between the ribbon cable and the motherboard.
I've posted several times to the list that cleaning of the ribbon cable
contacts helps to remove jaggies. It worked several times for me but dirty
contacts is not the true reason. Luckily as I am I got two MP2kx with really
nasty and stable jaggies I did a comprehensive and successful research for
the true reason:
Jaggies are caused by a deformation (twist) of the upper plastic case half.
It is especially the right long side of the case, which is sort of weaker
due to the lid mechanism. Its long edge is pressing constantly onto the
screen and fools the pen digitizer. I removed at both jaggied MP2kx the
upper case half and the jaggies disappeared and reappeared after remounting.
Then I removed about 0.2mm of the edge with a milling machine and cleaned
and remounted everything and the two Newtons are now cured and work fine
since that modification. Instead of a milling machine a nice scraping tool
or a Dremel hand engraving machine would probably do as well. The bad thing
is that one has to take apart EVERYTHING of the Newton - I needed about 4
hours for all of my experiments and the repair.
-- With best Regards / Viele Gruesse! Marco Mailand https://www.paypal.com/refer/pal=YYD3VUXUVD2YG -- This is the NewtonTalk list - http://www.newtontalk.net/ for all inquiries List FAQ/Etiquette/Terms: http://www.newtontalk.net/faq.html Official Newton FAQ: http://www.chuma.org/newton/faq/
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