Posted By
TLC
on 2011-06-17
15:49:40
|  Re: Plus/4 - PAL/NTSC switchable mod
Vimfuego: I have actually done that hack once. The machine wasn't a Plus/4 but a C16. You can find a photo of that hack here: http://coroners.no-ip.hu/stuff/DSC00219.JPG . Well, the actual way that I did this hack might look pretty crude  , I also wouldn't make a bet if it'd comply with FCC's rules of EM interference emission ), but it certainly worked (and works to date...). You can recognize the extra 14.31818MHz crystal on the top of the original 17MHz one (this is obviously a PAL machine), and the extra trimmer cap beside it. The complex at the left is a simple 128k flash board that (amongst other things) has the extra NTSC kernal image. All in all: you can most probably just use simple wiring and SPDT switches, it'll most probably work (...I'd keep the wiring as short as possible, though).
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