Would something along these lines work? http://www.ebay.com/itm/Brand-NEW-MDA-RGB-CGA-EGA-to-VGA-industrial-Converter-/250851103017?hash=item3a67e41129
On 9/22/2015 10:00 AM, Leonardo Marsaglia wrote: > Also note that VGA works with analog voltages for the RGB and the CRT on > your lathe sure has TTL for the video signal so it wouldn't work without > and adapter board. > > 2015-09-22 10:56 GMT-03:00 Leonardo Marsaglia <leonardomarsagli...@gmail.com >> : >> Hello Rick. >> >> Sounds like it has the same signals as our Mazak. Probably the working >> frequencies are the same as the CGA old monitors. In our case we replaced >> the old CRT with an old CGA monitor and connected the video signal to one >> of the colors. >> >> But in your case I guess the best would be to get an adapter card from CGA >> to VGA. If you have a scope the best you can do is to measure the frequency >> of both vertical and horizontal and you can be sure that you have the CGA >> values. >> >> Be careful with the adapter boards because I bought one that had problems >> with the input on the CGA port so It wouldn't work. Finally a really nice >> guy named Roy wich I can't remember his website sent to me a board that he >> manufactured for US 45 and worked fine, really well made I have to say. We >> are not using it at the moment because the CRT monitor that we installed is >> working ok but in case of a failure we have the board for replacement. >> >> >> 2015-09-22 10:42 GMT-03:00 Rick Lair <r...@superiorroll.com>: >> >>> Hello Guys, >>> >>> This is off topic for sure, but knew of no better place to ask with all >>> the electronics knowledge floating around here. >>> >>> On our big vertical lathe, it has an old 9" CRT that is starting to give >>> us troubles, and I would like to convert it to an LCD, the only problem >>> is, that I am having a hard time figuring out the signaling going to the >>> new monitor. It is a Fanuc control, so it has a Honda 20 pin male >>> connector going to the CRT unit, which I scavenged up the diagram for >>> the pin-out. I have 20 pin female connectors here already, so I can make >>> a patch cable to VGA to connect it to the new monitor, but the signals >>> are different from one to another. The current CRT has Hsync, Vsync, and >>> a single wire Video signal, along with three 0V wires in the harness, >>> and on a separate connector, the power for the monitor. But a standard >>> VGA has Red, Green, Blue, then Hsync, and Vsync, and a few GRD >>> connections. >>> >>> Maybe I need a signal converter, I have found quite a few of them on >>> eBay, or can I just make up a cable and run with it? >>> >>> -- >>> >>> Thanks >>> >>> >>> Rick Lair >>> Superior Roll & Turning LLC >>> 399 East Center Street >>> Petersburg MI, 49270 >>> PH: 734-279-1831 >>> FAX: 734-279-1166 >>> www.superiorroll.com >>> >>> >>> >>> ------------------------------------------------------------------------------ >>> _______________________________________________ >>> Emc-users mailing list >>> Emc-users@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/emc-users >>> >> >> >> -- >> *Leonardo Marsaglia*. >> > > -- Thanks Rick Lair Superior Roll & Turning LLC 399 East Center Street Petersburg MI, 49270 PH: 734-279-1831 FAX: 734-279-1166 www.superiorroll.com ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
