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From: andyc@hplsla.HP.COM (Andy Cassino)
Newsgroups: comp.sys.atari.st.tech
Subject: Re: Something is WARMING in my Mega
Message-ID: <13510002@hplsla.HP.COM>
Date: 23 Aug 90 20:10:10 GMT
References: <1514@kielo.uta.fi>
Organization: HP Lake Stevens, WA
Lines: 31

jackin@vehka.uta.fi writes:
 
| I seem to have problem with my Mega. After a few hours work
| my Mega (2) starts to act weird. Few of the symptoms :
| 
| 	- ususal crashes with 2,4..30 (or so) bombs
| 	- screen goes white, but the program is still working
| 	only I can't see it. If the program updates screen/window etc.
| 	it will be OK for a while.
| 	- there are other, but as I usually go very near of nervous
| 	breakdown when these things happen my mind mercifully forgets
| 	them :-)
| 
| The time before weirdness starts is relative to the space between the
| Mega and my desk (more airspace, more time). 
| 
| Any suggestions ? I can replace quite a few components myself and if
| I can't my friends can.

My Mega 2 had the very similar problems from the start, especially on warm
days. I "solved" the problem at first by allowing lots of air space around
the computer. When the 6-chip TOS 1.4 ROM set was installed the problem could
no longer be ignored. The dealer solved it by replacing some low-power
Schottky drivers with some standard Schottky drivers. Sorry, it's been 
about a year and I can't remember exactly what parts were replaced. It 
did fix the problem "for good", though.

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    % Andy Cassino                                       %
    % Hewlett-Packard - Lake Stevens Instrument Division %
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