Nah, the typical IIgs monitor is a completely different interface from the standard DB-15 on the LC. Most LCs came with the Apple 12" RGB Monitor as standard.
Quite honestly it wouldn't be worth the effort to modify your IIGS monitor since there are other alternatives. I would suggest getting a Mac-VGA adapter and using a standard PC monitor.
Quite honestly it wouldn't be worth the effort to modify your IIGS monitor since there are other alternatives. I would suggest getting a Mac-VGA adapter and using a standard PC monitor.