Re: //c wanted, IIgs progress

[David Wilson <david@uow.edu.au>]

e_scissorhands@btconnect.corn (EdwardS) writes:
>So... wait. If I'm reading this right, then a //c is a //c is a //c, and
>the external PSU is the voltage critical bit, and the RF box was what
>made it a PAL device? Presumablly just with different ROMs for country
>specifications.

Yes.

Here are the differences between a PAL IIc and an NTSC IIe.

			international PAL	domestic NTSC
----------------------------------------------------------------
External PSU		220-240VAC to 12VDC	100-120VAC to 12VDC
Internal PSU		10-15VDC to 5/12/-12VDC	same
Main Oscillator		14.25MHz		14.31818MHz
IOU chip		50Hz version		60Hz version
Chargen ROM		2764 equiv (2 charsets)	2732 equiv US ASCII
Keyboard ROM		2716 US + foreign	2716 US + Dvorak
Color TV		PAL with external pod	NTSC

(the voltage ranges are from memory - they may be a little out)

>If that's the case, I'm more into getting one from the US, where they
>are much easier to find. I do have 110v convertors lying around. I'd
>just prefer not to have to use them. I have NTSC capable monitors anyway
>:)

That is a sensible idea. All you need to run it from 240VAC is a hefty 12V
plugpack and a DIN 5 or DIN 7 (prefered) plug. Solder the two wires from
the plug pack to the appropriate pins on the DIN plug and you have a IIc
power supply.
-- 
David Wilson  School of IT & CS, Uni of Wollongong, Australia