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Hello

I have a system of Siemens step 5 include video card"monitor interface module": 6es5 250 1aa11..as in picture:



the signal from the card is connected to CRT green monochrome monitor,What type of connector is it? BNC, RCA or what?..can I replace the crt screen with LCD "VGA port"...?

thanks

yes
but you need find not standart lcd:
sorry not remember fully:
1.horizontal or vertical sinchronise from 5hz & not from 15hz
2.check sinchronise signal green or red