Re: German IIe Question and ROM/JEDEC Link

["David Wilson" <mcs6502@gmail.com>]

heuser.marcus@freenet.de wrote:
> David Wilson wrote:
> > The US motherboard has the same sized keyboard ROM and has a Dvorak
> > layout in the 2nd half but no switch to select it (unlike the IIc).
>
> I guess that with a bit soldering and some keycap exchanging you could
> have a functioning Dvorak keyboard?

Yes, although it is not quite as easy as you might hope.

On a Rev A NTSC IIe, soldering X2 and cutting X1 allows AN2 to switch
between QWERTY and Dvorak. On the Rev B motherboard Apple made the
mistake of joining the keyboard select line with ENVID'. Soldering X3
will allow AN2 to select keyboard layout but it also disables the video
ROM when in Dvorak mode (the default after RESET due to AN2 being set
by the monitor)!

See page 7-37/38 of "Understanding the Apple IIe" for instructions for
adding a working keyboard switch to an NTSC motherboard.