User`s guide

MP-70/50 Scoreboard Controller User’s Guide
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The electronic function of battery powered MP-70 is exactly the same as
its AC-powered cousin with only one notable exception - the addition of a
battery charge ‘gas gauge’ indicator. This indicator is located on the upper
half of the LCD readout just to the right of the two-character sport code.
The graphics below depict the appearance of the indicator at various
charge levels.
The battery charge level can also be presented as percentage on the dis-
play at any time by pressing SHIFT+BAT/RF.