Re: Apple iie with switch under case?

["Michael J. Mahon" <mjmahon@aol.com>]

Sam Latella wrote:
> I just came across an Apple IIe that has a swich underneath the keyboard. 
> Once you flick the switch it goes from the Apple //e to Apple ][.   The
> Apple //e looks like it was built in 1982, and the case itself is a little
> bigger then the other //e I have in use.
>
> Did the IIe case shrink over the years?
>
> Lastly, everytime I boot up this //e with the switch its hard to read the
> screen... what could be the possible cause, bad board chip?
>
> Any help would be greatly appreciated.
>
> Sam

It seems likely that the machine is a home-built, modded machine.

The switch controls an address line on the character generator and
the ROMs (if done properly).  Of course, the rest of the machine is
a //e, with only the ][(+) ROMs and character generator.

In fact, it may just switch between enhanced and unenhanced //e...

In any case, reseating the ROMs and character generator is in order,
and flipping the switch a hundred times or more to make sure its
contacts are clean.

If that doesn't cure it, you'll have to provide more specific
symptoms.

-michael

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