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Post by Pyrofer on Sept 18, 2017 14:36:16 GMT
Hmm. It does sound like the cga2rgb part is fried, which isn't surprising if you reverse voltaged it several times. It might be worth getting hold of somebody who knows a bit more about electronics to test it for you, maybe somebody who has a working setup and could verify if it's dead. I am sure posting it off wouldn't cost much. Short of that you probably need to buy a new one. I can't hock my own product here as it's out of stock pending arrival of parts, but at least when it's back in stock it has the 5v line clearly marked as well as a removable chip should it get blown up. It might be worth looking for the cheap resistor based solutions. Maybe somebody could knock one up for you, it's no where near as good but at least you would have a picture.
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Post by mirkosoft on Sept 19, 2017 14:03:36 GMT
So, I leave it so as is, I have other solution, this was bonus with fixed dark yellow to orange.
So, I will have at home not working RGBI2RGBA - it was my fault
Miro
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Post by Pyrofer on Sept 19, 2017 17:50:44 GMT
Ok, so not sure if you are interested but I am making new boards.
I hope to have the original CGA 2 RGB adapter in stock, but I am also going to be doing a version with working S-Video out from the 80 col signals.
Are you PAL or NTSC? (Does that matter for S-Video?)
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Post by tokra on Sept 19, 2017 18:45:13 GMT
Even less TVs support S-Video than RGB. So what's the reason for converting the 80-column-video to S-Video? Converting 40-column FROM S-Video to RGB would make more sense, I think. Although, seriously, in the long run devices with analogue inputs will be gone altogether, so at some point we have to convert to HDMI.
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Post by Pyrofer on Sept 19, 2017 21:31:38 GMT
In Europe that is the case. It turns out most of the Americans have S-Video in and not RGB, so they have been calling for such an adapter.
I agree about HDMI however the chips to do that are horribad. I need to look at learning VHDL and making a small FPGA converter that can encode the HDMI directly from the CGA input. In theory it's not hard at all but in practice I know nothing about FPGA design.
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Post by mirkosoft on Sept 20, 2017 0:04:06 GMT
Really I'm not interest in... To Torsten: where to find adapter to use with your VDC VGA Mania?
Miro
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Post by tokra on Sept 21, 2017 9:50:10 GMT
For VDC VGA Mania you will basically just need a RGB Digital to RGB Analogue conversion like the RGBI2RGBA you mentioned or the BIT-C128.com-device (which I use), or the device Pyrofer is offering on Amibay. Then you just need to output this to a 15-pin-VGA-connector. For my BIT-C128-device I use the "6-Wire Signal Kit for VGA-to-BNC Cable" offered on the same site for $7.50. If you have a different RGB-Digital to RGB-Analogue-converter you may also use this cable: www.ambery.com/db9todbadca.html
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Post by mirkosoft on Sept 21, 2017 23:12:21 GMT
Hi Torsten!
This cable I have and whole adapter too. Problem of 15kHz CGA/RGB to VGA adapter is that dark yellow looks like name is - dark yellow, not as orange... this was reason to buy RGBI2RGBA... Ok, I'll contact Pyrofer.
Miro
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Post by tokra on Sept 22, 2017 17:57:02 GMT
I have the BIT-C128 and it does brown/orange perfectly. It does NOT show as dark yellow! If yours does it is defective.
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Post by mirkosoft on Sept 23, 2017 1:10:20 GMT
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