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Re: Apple ][+ won't boot system master
John Smith Jsmith@cox.net wrote:
>I haven't been able to figure this one out. Here's the system.
>
>Apple ][+, 48K, 16K Apple Language Card, Apple Disk controller card.
>
>It will run a number of games with the 16K Apple language card
>installed, but for some reason won't boot any of my 3.3 system master
>discs. Some of the system master discs result in the system hanging
>with the drive spinning. Another one causes it to break out into
>machine language, at address 3003 I believe.
>
>If I remove the Apple language card and install one of the chips from
>the card in the empty motherboard socket, it won't boot at all and
>throws up a screen full of asterix characters.
>
>The chip from the language card is different than those on the MB.
>
>Does anyone have any ideas what is going on here?
Just a wild idea--are you using a DRAM chip or one of the LS TTL
chips on the Language Card to fill the vacated main board socket?
It has to be a 16KB DRAM (4116 type) to work.
-michael
New Applesoft BASIC interface for NadaNet networking!
Home page: http://members.aol.com/MJMahon/