if its same as gps76 just push and release power button 1 time after you have it on.then repeat this step for dimmer back light. the gps76 has bright orange & dimmer orange back light 2 settings.I'm thinking gps76s is similar to gps76.
Need to know how to activate the backlight on this unit. Hooker
if its same as gps76 just push and release power button 1 time after you have it on.then repeat this step for dimmer back light. the gps76 has bright orange & dimmer orange back light 2 settings.I'm thinking gps76s is similar to gps76.