Re: Apple II Europlus Problem

[mjmahon@aol.com (Michael J. Mahon)]

Scott Alfter wrote:

>In article <bjt3dv$5b1$1$8302bc10@news.demon.co.uk>,
>Harvey Staples <harvey@staples.demon.co.uk> top-posted (grr):
>>Here is an update on the problem. In the past I  removed the Language card
>>from the slot, but did not disconnect the lead from the ROM socket. I have
>>just tried it, and all apperars to be fine now, DOS 3.3 boots up fine now.
>>The only problem I have now is with Pro DOS.  When I try to boot up Pro DOS
>>I get the Realocation/ configuration error, any ideas ? looks like I had a
>>faulty Language card, am I correct ?
>
>Except for the first couple or so versions, ProDOS 8 requires 64K.  If the
>language card's not in there, ProDOS won't load.
>
>IIRC, there's no connection between a language card and any of the ROM
>sockets.  There should be a 16-pin ribbon cable between the card and one of
>the RAM sockets (back left socket).  If it's not connected, the
>language-card RAM won't be refreshed.  If the cable is bad or missing, you
>might try making a replacement...parts should only be a few dollars, and I
>think it's wired straight-through (pin 1 to pin 1, pin 2 to pin 2, etc.). 
>If that still doesn't work, then you'll probably be in the market for a
>replacment language card. :-|
>
>(At least that's how the Microsoft (!) language card in my II+ is set up.  I
>wouldn't think an Apple language card or a different 3rd-party card would be
>much different.)

Agreed.  But the cable is probably OK, since DOS 3.3 worked when
he ran it, and the RAM chip whose socket the DIP jumper goes in is only
connected through this cable.  He would have had to replace the chip if
he had removed the cable when he took the card out of slot 0.

More likely, something is wrong with the 16K card memory or decoding
(like bank select)--so I also agree that he should try another 16K card.

-michael

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