Xref: utzoo comp.sys.amiga:61277 comp.sys.amiga.tech:13168 comp.sys.amiga.hardware:2422 Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!uwm.edu!zaphod.mps.ohio-state.edu!brutus.cs.uiuc.edu!psuvax1!rutgers!cbmvax!rsbx From: rsbx@cbmvax.commodore.com (Raymond S. Brand) Newsgroups: comp.sys.amiga,comp.sys.amiga.tech,comp.sys.amiga.hardware Subject: Re: A3000 Video Chips Message-ID: <13065@cbmvax.commodore.com> Date: 5 Jul 90 20:04:58 GMT References: <4741@munnari.oz.au> <13060@cbmvax.commodore.com> Followup-To: comp.sys.amiga Organization: Commodore-Amiga Inc, West Chester, PA Lines: 38 In article <13060@cbmvax.commodore.com>, peter@cbmvax.commodore.com (Peter Cherna) writes: > In article <4741@munnari.oz.au> krooglik@gondwana11.ecr.mu.oz (Alex KROOGLIK) writes: > > > > Everyone knows that in Australia we have PAL and in the U.S. you have > >NTSC. Now, I am going to import my 3000 from the U.S. to escape the > >phenomonal sales taxes over here in Oz and I am not looking forward to having > >to watch an NTSC screen. What I want to know is if the video chips in a 3000 > >would be replacable with PAL compatible ones once in Australia? > > The ECS chipset is capable of both NTSC and PAL. In the A3000, there is > a jumper to select the mode of the machine. On A2000's with ECS, I think > you have to cut a trace/add a wire to do the same thing. So to summarize, > you do not have to replace your video chips to convert an NTSC 3000 to > PAL or vice-versa. > > > If you can help me with the dilemma, please E-Mail me: > > > > krooglik@128.250.64.1 > > krooglik@gondwana20.ecr.mu.oz.OZ.AU > > Peter > Note: changing the jumper only gets you a PAL like machine if it was built to be an NTSC machine (same applies the other way around also). The video will be only slightly off spec but close enough; however, anything that is based on the master crystal will still be clocking at the NTSC rate. This includes things like the CIAs (used by timer.device), the audio hardware and the processor. rsbx ------------------------------------------------------------------------ Raymond S. Brand rsbx@cbmvax.commodore.com Commodore-Amiga Engineering ...!uunet!cbmvax!rsbx 1200 Wilson Drive (215)-431-9100 West Chester PA 19380 "Looking" ------------------------------------------------------------------------