Matrix Orbital LK202-25 Legacy - Manual (Page 7)

LK202-25 rev 3 7
1.7 To Reset the module
Manual override should only be required in one instance. If for some reason the module is set at a baud
rate which cannot be produced by the host system and all communication to the display is lost, then the
user should follow this simple procedure:
1. Turn off the display
2. Put a jumper on pins 5 and 6 of the keypad connector (C5 and R1).
3. Power up the display. The baud rate is now set to 19,200.
4. Remove the jumper and change the RS-232 port settings to the desired baud rate.
5. Turn off the display.
6. Power up the display.
Refer to the “Set RS-232 Port Speed” command (section 6.1.12) for acceptable baud rates.