🚀 go-pugleaf

RetroBBS NetNews Server

Inspired by RockSolid Light RIP Retro Guy

Article View: comp.sys.amiga.tech
Article #13088

Re: HELP 1/2 Meg 1000 Hack

#13088
From: Doug Lee
Date: Thu, 14 Dec 1989 06:13
29 lines
2029 bytes
In article <1034@swbatl.UUCP> ammrk@swbatl.UUCP (Mike R. Kraml) writes:
>Hello: I just install yet another 1/2 meg upgrade hack in another friends 
>Amiga 1000.  Well, this one is not going so hot.  I got the hack in their, 
>and now whenever I turn on the Machine both my harddisk and cpu lights light,
>and stay on.  The screen goes to a Gray color, solid, and hangs there.  Has
>anyone ever seen this or have any possible ideas.  I am very desperite!!!
>Thanks in advance, Mike... 

The chips on the motherboard are arranged in pairs. Looking at the machine 
horizontally from the front (or back), a given chip on the front row has all
pins except pin 16 (the one you wire separately) connected to the corresponding
chip behind it (in the second row or 4 chips). USing an ohmmeter, check the 
resistance between each pin one at a time. eg: go between pin 1 of the front
left chip and pin 1 of the rear left chip and so on. Be sure and contact the
pin at the top of the topmost layer of IC's you soldered on. The idea is to 
check all connections you soldered. Also make sure you have cut all the foils 
(or pins) on the decoding IC's (U1 H I J ) and that they are not still 
contacting. Be sure and check for shorts between adjacent pins. If you have 
done the Dave Haynie kickstart hack, you may want to try the memory without
it. For anyone else doing this, I suggest adding the memory first and then 
modifying the kickstart board after a preliminary test. I have built a 
whole bunch of these hacks and every one which didn't work has been due to
a bad connection.      <<<Doug>>>


-- 
Doug Lee
douglee@becker
416-461-5357
Technical Details
Message-ID: <1337@becker.UUCP>
Path: arc1-ca.pugleaf.net!utzoo!censor!becker!douglee
References: <1034@swbatl.UUCP>

Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!utzoo!censor!becker!douglee
From: douglee@becker.UUCP (Doug Lee)
Newsgroups: comp.sys.amiga.tech
Subject: Re: HELP 1/2 Meg 1000 Hack
Keywords: 1000 Hack 1 meg upgrade
Message-ID: <1337@becker.UUCP>
Date: 14 Dec 89 06:13:54 GMT
References: <1034@swbatl.UUCP>
Reply-To: douglee@becker.UUCP (Doug Lee)
Organization: G. T. S., Toronto, Ontario
Lines: 29