Path: utzoo!mnetor!uunet!cbmvax!grr
From: grr@cbmvax.UUCP (George Robbins)
Newsgroups: comp.sys.amiga
Subject: Re: 2000 *COLD* boot
Message-ID: <3036@cbmvax.UUCP>
Date: 28 Dec 87 02:01:10 GMT
References: <4230008@hpfclq.HP.COM>
Reply-To: grr@cbmvax.UUCP (George Robbins)
Organization: Commodore Technology, West Chester, PA
Lines: 20

In article <4230008@hpfclq.HP.COM> cunniff@hpfclq.HP.COM (Ross Cunniff) writes:
> Well, I finally traded in my 1000 for a 2000 (buying the 1000 back), and
> am pretty happy with the 2000.  However, there is one annoying problem
> with the 2000:  if I power-on the 2000 when the motherboard temperature
> is below about 70 degrees F (21 degrees C, for those of you living in the
> 20th century), the screen remains dark (no diagnostic colors, NOTHING)
> until I hit the ctrl-amiga-amiga.  It then proceeds to boot just fine.
> If I apply a blow drier on low heat to the motherboard (raising the
> temperature to, oh, 80 degrees or so) the power-on sequence works properly.

	Well, I'd suspect something in the power-up reset circuitry is
broken, probably either an out-of-spec or incorrect value part in the area
of U805, the LM339/2901 that handles the reset chores.  Might as well get
it fixed, since there's a 50/50 chance it will get worse instead of
better.

-- 
George Robbins - now working for,	uucp: {uunet|ihnp4|rutgers}!cbmvax!grr
but no way officially representing	arpa: cbmvax!grr@uunet.uu.net
Commodore, Engineering Department	fone: 215-431-9255 (only by moonlite)