Date   : Wed, 16 Sep 1992 15:30:20 GMT
From   : agate!doc.ic.ac.uk!uknet!jet!dba@ucbvax.Berkeley.EDU (Dennis B Armstrong)
Subject: Re: KAYPRO W/ WORDSTAR

In <1992Sep14.163014.1@vax1.umkc.edu> lbartel@vax1.umkc.edu writes:

>I'm writing this on behalf of some friends.  What could be causing Wordstar on
>a Kaypro to loose all digits and punctuation on the monitor after about five
>minutes of operation?  The characters exist in the text file and print
fine but
>do not display on the CRT.  After about five minutes of operation these
>characters are lost but the editing session can still continue with everything
>behaving normally except for the display.  The digits and punctuation
>characters disappear and are replaced by blank spaces on the CRT.  I'm sorry I
>don't know more specifics on the machine and version of Wordstar being used,
>but it was purchased, in the US, in the early 80's.  This machine has served
>them very well in Spain, and now in the US.

>I use Wordstar and CPM on my Apple ][+ and still like it very well.

It sounds like the character generator EPROM is flakey and some of
the bits are failing.
There was a discussion on this in sci.electronics not so long back.

Try removing the EPROM and cleaning the pins if it is socketed, otherwise
resolder the pins.

good luck
dennis


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