Re: NTSC Apple //e mainboard: Connectors?

[heuser.marcus@freenet.de]

mdj schrieb:
>
> Yes - when fitting a US motherboard to an euro chassis the existing
> speaker cable will be way to short. I solved this problem by using the
> speaker from a spare IIGS rather than soldering.

Ha ha - actually I did this too - my third GS had a broken case anyway.
I bought it for spare parts and combined them wherever possible ;-)

> I had no problems there, but the keyboard cable on the platinum chassis
> is quite long, it might not be in pre-platinum machines.

I used a standard German PAL machine with the appropriate keyboard &
(very short) cable and a US NTSC board. Never seen a platinum IIe with
German keyboard, though.

> I did this change myself to my 'production' IIe so I could get back
> slot 3 and also drive RGB at 60Hz rather than 50. With RGB equipped
> RamWorks and a monitor capable of both RGB and composite outputs, you
> really can have the best of both worlds.

Understandable. I first changed boards simply for the picture ratio and
to get roughly the same picture quality of an early eighties gamer with
composite monitor. I don't think that many games were produced with
RGB monitors in mind.

Later I even changed an "International NTSC" board from 50 to 60 Hz
(replacing the crystal & IOU chip) to make it output "real" NTSC and
keep AUX and Slot 3 in line - for a French RGB card with 64KB aux
memory ("Le chat mauve - Eve")

It worked but 60 Hz were too much for the card and after two or three
days only the 64KB were still working - making it pretty much
useless...

I didn't like the card too much, anyway (wrong colors, no hires text
in double hires graphics), but it showed me that my old TV could
produce a fabulous RGB picture in 80 column mode.

Maybe I get my grubby hands on a RW3 board someday ;-)

bye
Marcus