Join Date: May 2000
Location: Silver Spring, MD USA
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I don't know that I can answer your questions, but I will add what I know.
I recently had my Megatouch Vibe develop a bad touchscreen. (Luckily it was under warranty)
What kind of Megatouch is yours? XL? Emerald? (or other precious stone) Force (LCD or CRT based)? Ion?
I had to replace the touchscreen on mine when it went bad. Now the touch screen is different than the monitor as you mention. It is a thin piece of VERY fragile glass that goes over the monitor. It also has a controller which is separately purchased from the touchscreen (this looks like a black rectangular box and might be called a 3M microcontroller). The touchscreens can be a bit pricey.
I would go one step further by testing the touchscreen. Plug everything in except the vga. Plug in your working monitor. Test the touchscreen by "touching" the megatouch monitor to see if the original touchscreen works. If it works, I would look to just replace the monitor. Call Merit to see if their tech support will help you. I have found them to be very helpful. See what their tech person will tell you about replacing the monitor. They might be able to point you to a used model to look for. Also check with your local distibutor (Merit can tell you who they are) Call them to see if they have replacements. My distributor (Betson) carries the official Merit replacements and they also carry the same parts (touchscreens, Monitors, etc...) but not purchased from Merit which will be cheaper.
For example they carry the Merit touchscreen and they also carry the 3M touchscreen. The Merit touchscreen is the 3M touchscreen, but the 3M is cheaper since they buy it from 3M rather than Merit. (They usually use the Merit parts for warranty repairs)
If you are able to get a monitor and your touchscreen is good, you have to be VERY careful when removing the touchscreen. The Merit tech gave me a tip. Use dental floss at one corner to start "cutting" the old double sided tape off. Sorry to keep mentioning it but that touchscreen is very fragile.
I am going to guess that those eBay touchscreens won't work since the Megatouch won't have drivers for that particular touchscreen. It loads the drivers for the 3M touchscreens.