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PRC-Saltillo response to COVID-19:

We only use strictly necessary cookies for this website. Please see the privacy policy for more information.   


The PRC-Saltillo offices will be closed on Jul 04 in observance of the holiday. We apologize for any inconvenience this has caused.

How to turn the Display Light On/Off

Backlight = On/Off is an option in the User Feedback Options Menu - this lights the display for night time viewing

Note: using the backlight will reduce battery life

To change an option in the User Feedback Options Menu:

  • Choose MENU
  • Choose NEXT, until you see User Feedback Options
  • Choose SELECT
  • Choose NEXT, until you see the option of “Backlight = On/Off”
  • Choose SELECT (the current setting will be displayed)
  • Choose NEXT to change the setting
  • Choose MENU to exit the menu