41c vs 41cx display compatibility

[GreyUser]

Excellent find on the washers, I was not aware that McMaster Carr stocked them. Part number is 95630A239 for others reading the thread.

As for the keyboard cleaning, once the lcd display is out and the keyboard connector has been lifted off (VERY important!), immersion is the way to go. An ultrasonic cleaner is very helpful but not essential. Let it soak for 5 minutes or more, press all the keys while immersed, this will loosen any crud in the hinges. Rinse and repeat the key pressing while submerged. Once you’re okay with the cleaning level, shake as much of the water out as possible, press all the keys several times to force the water out of the domes and place in a warm area with small fan blowing over the pc board side for 24 hours minimum before re-assembly.

Really filthy 41’s clean up like new with a mild cleaner like dilute Simple Green and a toothbrush then the dunk treatment to flush it all away. Restoration hint: Polish any scratches out of the lcd window before immersion cleaning.