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Doffo
Account closed
Registered: Jan 2005
Posts: 8 |
Convert NTSC C64 to PAL?
Is converting a C64 NTSC to PAL possible? I just figured that if most software is in PAL anyways, I may as well convert one of my C64s to PAL. I have a 1084S monitor which can display PAL, but it just looks stretched is all. Any information on this would be great. Thanks! :)
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64kb Ram, 1mhz CPU... Play ball!!! |
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Tao
Registered: Aug 2002
Posts: 115 |
Since there are a lot more PAL 64's than NTSC 64's (AFAIK), I suggest you get someone in Europe to send you a PAL 64 instead and keep your NTSC 64 too, that way you can do both =) |
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Mace
Registered: May 2002
Posts: 1799 |
Does that work?
I mean, in the USA the power is 120V/60Hz, while in Europe it's 220~230V/50Hz.
Will simply swapping PSUs work? Or will the frequency give problems? |
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Graham
Account closed
Registered: Dec 2002
Posts: 990 |
Basically you need to do the following:
- Replace the NTSC VIC-II with a compatible PAL VIC-II
- Replace 14.31818 MHz clock with a 17.734475 MHz clock
- Set the PAL/NTSC-bridge on the PCB to "PAL"
So you need atleast two parts from a PAL 64.
Concerning the VIC-II chips it's essential that you replace NMOS with NMOS and HMOS with HMOS. |
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Doffo
Account closed
Registered: Jan 2005
Posts: 8 |
Thanks for the replys.
Awhile ago I was told the PSU differences shouldnt matter much. The reason the PSU is there just so that it matches your power on your outlet, but I was told that as long as you have a sufficient monitor to display PAL, then it should be fine.
I may just talk to a few people and see if I can just be sent a PAL unit if I already need parts from one anyways and leave my spare c64 intact :)
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64kb Ram, 1mhz CPU... Play ball!!! |
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tlr
Registered: Sep 2003
Posts: 1787 |
Quote: Thanks for the replys.
Awhile ago I was told the PSU differences shouldnt matter much. The reason the PSU is there just so that it matches your power on your outlet, but I was told that as long as you have a sufficient monitor to display PAL, then it should be fine.
I may just talk to a few people and see if I can just be sent a PAL unit if I already need parts from one anyways and leave my spare c64 intact :)
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64kb Ram, 1mhz CPU... Play ball!!!
It mostly works fine on 110V/60Hz, but the TOD of the CIA's will run in the wrong speed as they use the mains frequency for reference.
The TODs are not much used though so you probably won't notice. |
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Devia
Registered: Oct 2004
Posts: 401 |
Quote: It mostly works fine on 110V/60Hz, but the TOD of the CIA's will run in the wrong speed as they use the mains frequency for reference.
The TODs are not much used though so you probably won't notice.
Interrestingly the PAL SX-64 all use a 60Hz TOD XTal module, the 9VAC is only passed through to the User Port and not used anywhere inside the SX-64. |
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Six
Registered: Apr 2002
Posts: 289 |
Having been down this road, I can say in all confidence that the best thing to do is to just buy a PAL C64, monitor, and a power converter.
FWIW, the NTSC 1702 will adjust and sync to a 50 hz signal, but you will need a color converter (~200USD) and what you wind up with is not the most desirable display.
The 1084S has a pot in the back that you can adjust for vertical size. I wired a resistor and switch to mine so I could use it easily between PAL and NTSC on my Amiga back in the day. (though I may be thinking of the 2002)
Of course, I was lucky. I bought my PAL rig when the Euro was weak against the US Dollar, and from a sympathetic scener who wanted to help me out. At this point given the weakness of the Dollar, it might be more cost-effective to try to find an Argentine scener who wants to sell a Drean C64.
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