Can a monitor have a hardware problem so it only work on single resolution?

I have an Apple MultipleScan 1705 connected to a PowerMac 7100. No matters what version of MacOS I use, no matters if I install updated Apple Displays SOftware, it will only work at 832x624 , any other resolution, lower or higher, will mess the image -it will be distorted an you will "see the refresh"-.
I'm starting to think it is a monitor problem, but not sure. Any ideas?

There is only one combination of Red, Green, Blue, HSync, and VSync that will run a high quality monitor.
When you change the switches on your adapter, most of what you are doing is changing the wiring of pins 4, 7, and 10. These pins, and their connections with wires and diodes, are read by the Mac at startup to tell what family of genuine Apple displays is attached. (The code is like a promise that a certain display is being used.)
The Mac uses this information, read at startup, to decide what resolutions and refresh rate are valid for the display you said is attached. No others are provided by your Mac, because they might damage your display.
You have been focusing on the display as the likely source of the problem. I doubt that the display is the problem. The display is a slave. It takes the rows of dots given by the computer and attempts to paint them on the screen, and adjusts the frequency to match what the computer is sending if it can, and otherwise goes blank.
If you take that same "adapter" and cable, and connect it to the Apple display, I expect you will get similar good results.

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