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*. > -- *Leonardo Marsaglia*. ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
