Figure 3-29A.Seven-segment LED display examples.
Figure 3-29B.Seven-segment LED display examples.
Seven-segment displays are also available in common-cathode form, in which all cathodes are at the
same potential. When replacing LED displays, you must ensure the replacement display is the same type
as the faulty display. Since both types look alike, you should always check the manufacturer's number.
LED seven-segment displays range from the very small, often not much larger than standard
typewritten numbers, to about an inch. Several displays may be combined in a package to show a series of
numbers, such as the one shown in figure 3-30.