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Thread View: comp.sys.amiga.tech
2 messages
2 total messages Started by Paul MacDonald Mon, 26 Nov 1990 20:59
Help Needed Diagnosing Possible Hardware Problem
#7029
Author: Paul MacDonald
Date: Mon, 26 Nov 1990 20:59
44 lines
2638 bytes
Perhaps someone out in netland can help me diagnose a series of problems
I am having with certain applications on my Amiga 2000?

o  A64 V1.01n will not boot on my system. V1.00n worked okay. I
   eventually get a Guru #$00000008 and a plain blue screen (no
   A64 READY. prompt. The author can't figure it out because noone
   else has reported any problem running it. We have tried it on
   my machine stripped down and on a factory Workbench V1.3 to no avail.
   The author believes it is failing at a point where there are some
   "graphics interrupts" in the software.

o  MuchMore V2.7 scrolls very jittery. Moving the mouse in a circular
   motion on the screen smooths out the scroll. V2.5 of the program
   works just fine.

o  DigiView V4.0 smears quite a bit. This generally happens after
   something has been digitized and I pull down a menu. Usually,
   releasing the menu leaves a shadow of a menu selection on the screen.
   In some instances a rectangle of garbage remains on the screen. To
   rid the screen of this I have to redisplay the image.

My system has the Fat Agnus. It is a rev 4.3 board. My question is,
could all of these problems be somehow related to a faulty chip? And, if
so, which chip? Is it possible for a chip to only partially fail
resulting in some of these problems? Is there a diagnostic program 
around that tests the various custom chips on the mother board?

Any help would be graciously appreciated!  

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Re: Help Needed Diagnosing Possible Hardware Problem
#7568
Author: David Le Blanc
Date: Wed, 19 Dec 1990 04:00
24 lines
1750 bytes
In article <paul.4842@wa1omm.UUCP>, paul@wa1omm.UUCP (Paul MacDonald) writes:
> 
> o  DigiView V4.0 smears quite a bit. This generally happens after
>    something has been digitized and I pull down a menu. Usually,
>    releasing the menu leaves a shadow of a menu selection on the screen.
I have a different problem. When using digiview (or dynashow for that
matter) and the machine is *TRYING* to display a dynamic picture,
be it Dyna-Ham, Dyna-Hires or ARES, the screen jitters violently from
left to right, at scan-line intervals.. the result is a horrific
mess, and yet cannot be duplicated on any other machine I have tried.

STATS : A500, Rev 5, normal (FAT) Agnus and denise.
	A590 (location zero patched.) with 2 Megs.
	NO-Butchers. My other machine WITH the rom switch and 
	boot switch butcherings works fine though...

>             | Usenet:      ...virgin!ubbs-nh!wa1omm!paul | 
Why such a HUGE .sig? sig = 1/<penis length> ???
Oops, sorry, forget I said that....
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