Here is an update on the progress of trying to get my LCD screen to work. I reset the screen according to your instructions, resoldered the TTL jumpers and reconnected the screen to the PIC chip. This seemed to fix the problem. The screen worked for approximately a day, was powered down multiple tim...

Hello, I am currently trying to communicate with my GLK 12232-25-SM Rev 1.4 LCD screen using a 18F2550 PIC chip using a C18 compiler (essentially programming in C). I am in TTL mode on the LCD screen (removed RS232 connections and created new solder connections on TTL pads in accordance with the man...