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Post by MadModder on Mar 24, 2007 8:40:33 GMT -5
I've always heard that there was no s-video on the very first brown/beige breadbin C64 model. But it is. I have two of those, and there's s-video on both.
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Post by David Murray on Mar 24, 2007 10:37:12 GMT -5
well, the question is... when you say this:
Are you generalizing the whole breadbin C64 as the "first model" or are you saying you have the first model of the breadbin C64.. It is a subtle difference in the English language, but the meaning is different.
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d0c
Junior Member
Posts: 57
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Post by d0c on Mar 24, 2007 13:09:02 GMT -5
there never was s-video, only composite with split chroma and luma....
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Post by tlr on Mar 24, 2007 13:31:24 GMT -5
there never was s-video, only composite with split chroma and luma.... What is the difference between composite with split chroma and luma from an S-Video signal? I thought this was basically the same except for the naming.
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Post by huckle on Mar 24, 2007 14:38:55 GMT -5
How can you have composite with split Luma/chroma? that's a contradiction in terms?!
I have a very early breadbox, with the orange 'F' keys, which has a 5-pin video port and no S-video.. just composite video.. all my others have an 8-pin video port with S-video support
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Post by tlr on Mar 24, 2007 14:59:37 GMT -5
How can you have composite with split Luma/chroma? that's a contradiction in terms?! Yes. In this case it is a sloppy way of refering to the luma and chroma parts of composite just before they are mixed together for the output.
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Post by David Murray on Mar 24, 2007 18:36:15 GMT -5
I believe Commodore referred to it as LCA video.. I'm not sure what the A stands form, but I imagine the L is Luma and C is chroma.
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Post by Ian Colquhoun on Mar 24, 2007 18:45:38 GMT -5
Could LCA have been a term to describe the cable - ie. Luma/Chroma/Audio? Not LCA video?
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Post by racob on Mar 24, 2007 22:32:33 GMT -5
I think I should second the LCA as Luma/Chroma/Audio since the cable was meant to be connected that way to the monitor (1701)
On the other hand, i maybe guessing...
Question: if there is way, can we mod the orignal C64 then to have S-Video?? can we use the same board as David did on the Amiga A1000??
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Post by David Murray on Mar 24, 2007 22:45:03 GMT -5
I would think it should be possible considering the VIC-II chip does not have those signals combined internally. However, the board I used on the Amiga uses an RGB input and the VIC-II chip does not generate that kind of signal as it was targeted at a television display which uses luma/chroma. However, I don't think the mod would be worthwhile considering you can buy a working Commodore 64 from ebay for under $10 most of the time that will already have the seperated video available. However, you cannot buy an Amiga 1000 with S-video anywhere, so that is why I hacked it.
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Post by Robin Harbron on Mar 24, 2007 23:48:29 GMT -5
However, I don't think the mod would be worthwhile considering you can buy a working Commodore 64 from ebay for under $10 most of the time that will already have the seperated video available. Early C64s without separated video are also the only ones to have the rare 64 cycles-per-scanline VIC. All NTSC C64s after it have 65 cycle VICs, and all PAL C64s have 63 cycle VICs. So buying another C64 wouldn't be exactly the same. I'd like to see better video from one of my old machines, though only one of mine is still working, so I probably wouldn't want to risk the mod.
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murple
Junior Member
Posts: 56
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Post by murple on Mar 25, 2007 2:56:46 GMT -5
I've seen schematics online to build a cable that plugs in to the C64 video port on one end, and a standard S-video jack on the other. Ive even seen these assmbled for on ebay, if I remember right. It seems a simple enough mod to do though so probably not worth the extra money to get it pre-built.
I'm happy with my plain old LCA/composite to my 1084S or TV, though.
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Post by Golan Klinger on Mar 25, 2007 3:48:02 GMT -5
I've seen schematics online to build a cable that plugs in to the C64 video port on one end, and a standard S-video jack on the other. Those cables will work only on 64s that have separated video. Remember, Commodore's separated video is simply luma and chroma signals being delivered over separate RCA plugs and Svideo is luma and chroma being delivered over a 4 or 7 pin mini DIN. The end plug is different while the delivered signals are otherwise identical. I have a friend that uses a Commodore 1702 monitor as a TV with a digital cable terminal. I noticed that they had it connected with a composite RCA cable so I made them a cable that was Svideo on one end (to connect to the terminal) and seperated luma and chroma on RCA plugs on the other end (to connect to the monitor). Then I connected the left and right audio from the terminal to their 'boom box' so they could enjoy stereo sound. She's not a video or audiophile but she is very pleased with how much better the image quality is with the new cable and she almost jumped out of her skin when the opening music to CSI came on. Everyone should remember: RF -> composite -> separated/Svideo -> component -> HDMI. The further you move to the right, the happier you'll be (unless you're a video pirate in which case you should stop at component or you'll run into a DRM wall).
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Post by MadModder on Mar 25, 2007 5:47:49 GMT -5
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Post by tlr on Mar 25, 2007 6:22:12 GMT -5
Ok, the PCB is from 1984. I'm not shure the C64 with orange F-keys ever was sold here in Sweden. 1984 is quite "recent". My first PAL C64 (bought in Stockholm/Sweden) has a 1983 (or was it 1982?) main board and a different logo sticker. (no rainbow colors) Looks exactly like: thisI'll check the year the next time I dig into the closet where it sits.
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