Re: Strange display problem Apple ][c

[Jan <jan.kronlund@ahlsellref.fi>]

I think that I have the problem solved, it is bad memory. I will try replacing all
chips with 4164�s since no 4264�s are available here anymore, hope they work.
Thanks for everyone for their help.

Jan/Finland

Jan wrote:

> Here�s something new!
> I got rid of the strange characters that were "glued" to the screen and it was
> as I was told, bad memory. Since I did not have new memory available, I was
> trying old chips that I removed from other IIC�s and, of course, they got
> mixed up ;-)
> But, now I have a new problem: The IIC will load PRODOS only until the welcome
> screen, then it will beep and go into assembler (* prompt). If I press CTRL+C
> and enter, it goes to Applesoft prompt and then I hit enter, I�ll get  13
> square blocks and a beep. ???? What is this??
> No, it will not process any commands, just the blocks after each hit of
> return.
>
> HELP...
> Jan/Finland
>
> Tony Cianfaglione wrote:
>
> > At the BASIC prompt ], type:  PRINT PEEK (64447)
> >
> > Hit return.   If it returns a 255, you have the original rom version, a 0
> > indicates the Unidisk version, a 3 indicates the memory expansion version,
> > a 4 indicates a bug fix version and a 5 is a IIc+.
> >
> > ----------------------------------
> >
> > On Tue, 25 Apr 2000, Jan wrote:
> >
> > > How can I tell which version I have? By serial number, firmware?