I posted earlier about the LCD swap I did on my Revenge From Mars. Here are a few pics showing some of the details of how we did it.
The original CRT frame also holds the light for the translite but leaving it in place makes it difficult to close up the gaps around the monitor to keep light from bleeding around the edges and down to the playfield. I completely removed the original frame and light with the CRT and built a bezel out of 1/4” plywood and painted it black. I then attached the LCD to the bezel with some machine screws. I still had a tiny gap around the edge but it was easy enough to use electrical tape to close the gap completely. I then laid the monitor into the cabinet and turned the game on to align it and get the position the best I could, however the dimensions aren’t the same as the CRT so it’s not perfect, but close. Once positioned I ran screws through the bezel to hold it to the cabinet.
I used an adapter and splitter to run power to the monitor and new LED backlight from the power supply in the PC box overhead.
The monitor has CGA and VGA input and I found that you can run the VGA connection to the computer and it supports the CGA signal just fine and no converters are needed.
The LCD doesn’t have a true black like a CRT but you can get it looking ok if you dial the brightness back and turn the contrast up a little.
It was pretty straight forward but isn’t a direct fit so hopefully this will help someone else one day.
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