S.Battery MaintenanceWhen battery power decreases, thé whole display darkens.Battery should then be renewed.For battery spécifications, refer to page 25.( Replacement ctf Battery^1)Open thé back panel of thé unit by loosening thé screws witha ® screwdriver. Open thé battery cover by loosening théscrew with a © screwdriver.* Never touch thé inside of thé unit except thé batterycompartment.2)Remove dead battery.3)Insert new battery with thé plus terminal (fiât side) on top.4)Replace thé battery cover and back panel. Screw carefully.