Re: Apple ][+ won't boot system master

[Rubywand <rubywand@swbell.net>]

John Smith writes ...
> 
> 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.

     There are different RAM chips from different makers that work okay.

> Does anyone have any ideas what is going on here?
> 
 ....

     If the DOS System Master disks you have try to load Integer BASIC on
booting, then, the problem may not be booting but with loading Int BASIC into
your Language Card.

     The Language Card may have one or more chips making poor contact in their
sockets. Try scootching up and re-seating each socketed IC on your Language
Card. While your II+ is open, do the same for all the IC's you can get to on
the motherboard. Lots of times that will fix a glitchy II+.



Rubywand