Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!mnetor!uunet!husc6!bloom-beacon!gatech!hubcap!michael
From: michael@hubcap.UUCP (Michael John Miller)
Newsgroups: comp.sys.amiga
Subject: Problems with Amiga 2000 video
Message-ID: <548@hubcap.UUCP>
Date: Wed, 7-Oct-87 11:17:06 EDT
Article-I.D.: hubcap.548
Posted: Wed Oct  7 11:17:06 1987
Date-Received: Sat, 10-Oct-87 08:08:45 EDT
Organization: Clemson University, Clemson, SC
Lines: 53
Keywords: A2000 B2000 Amiga Video


I just got my Amiga 2000 yesterday, and it works great except for one
problem: the video display is diseased. :-(
 
I have difficulty describing the problem, but will try.  One example is
with windows using the stock colors of white on blue.  To the right of
a window's title bar, there is a faint streak of white that continues
for about two inches or so, narrowing off like the tail of a comet.  It
looks like a cartoon where the window is speeding to the left :-).
 
It seems that any long band of bright color followed by a dark color
will produce this effect, and the sharper the contrast, the more
pronounced the effect.  Moving the mouse pointer around over the
distortions causes them to waver slightly; because the pointer contains
bright colors, I guess.
 
With a busy display (lots of open windows, etc), my screen looks like
is has leoprosy.
 
The circuit board in the A2000 is a rev 4.1 B2000 (no Buster Tower that
I could see).  I have the A2000 attached to the same Sony monitor that
did (and still does) work with my A1000.  The monitor and the system
unit are both plugged into the same outlet-strip, but this was also the
case when I was using the A1000.  Also attached to the A2000 is an
external 3.5 inch floppy drive.
 
One suggested possibility is faulty grounding, which I am going to look
into in any case.  The apartment I live in is fairly old, and I have
not checked the wiring thoroughly - yet.  However, the A1000 works just
fine from the same outlet with the same monitor and same external
drive.
 
Now that I have the machine in my greedy little hands, I don't want to
let go of it.  Also, I got it through mail order (Computer Mail Order)
so there isn't a local dealer's lap to dump it in.  However, if it is
truly broken, back it goes.
 
By the way, I could not find a phone number in the supplied manual for
calling Commodore about the problem.  Also, if I do need to send the
machine somewhere should I send it back to the mail order company or to
a 'regional repair center' assuming one exists.
 
Please send replies to one addresses below, or post them to the net if
you think others will find them useful.  Thanks for any help or advice
you can give.  I wait with worms on my tongue (baited breath).
 
Thanks again ...
 
Michael Miller, Clemson University Computer Center
 
 michael@hubcap.clemson.edu                 ...!hubcap!michael
 BITNET: michael@clemson