Matrix Orbital VK204-25 Legacy - Manual (Page 13)

2.3 Manual Override
The Manual Override is provided to allow the LK204-25-USB to be reset to factory defaults. This can
be particularly helpful if the display module has been set to an unknown baud rate and you are no longer
able to communicate with it. If you wish to return the module to its default settings you must:
1. Power off the display module.
2. Place a Jumper on the Manual Override pins.
3. Power up the display module.
4. The display module is now set to its default values listed below in
table 1 .
5. Edit and save settings.
Figure 12: Manual Override Jumper
Table 1: Default Values
Brightness 255
Contrast 128
Baud Rate 19.2 kbps
NOTE The display module will revert back to the old settings once turned off, unless the
settings are saved.
2.4 USB Header
The USB Header provides USB connector for communication and power of the display. An alternate
power option for the display can be seen in figure 10.
Matrix Orbital VK204-25-USB 9