Re: IIc self test

[dempson@actrix.gen.nz (David Empson)]

.D.E. <catena-ind@Forget.The.Spam.home.com> wrote:

> I picked up an Apple IIc the other day for $60 complete with original 9"
> monitor, mouse and monitor stand. I remember that the IIc had a self
> test mode that you could put it into. Does anyone know how to place the
> system into self test mode? I have found that if you boot it and press
> control, open apple, closed apple and reset the screen changes and it
> "seems" to be running some sort of test. How long did the original test
> take?

If the IIc has the original firmware release, then it doesn't have a
proper self test.  It just displays a graphical pattern and keeps
running forever.  A full test was provided in the revised IIc firmware
(the "Unidisk" revision).

To check which firmware version is present, get into BASIC and type

PRINT PEEK(64447)

If it prints 255 then you have the original firmware and no self test.
If it prints 0, 3 or 4 then you should have a working self test that
will display a result.

-- 
David Empson
dempson@actrix.gen.nz
Snail mail: P O Box 27-103, Wellington, New Zealand