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Troubleshooting Symptom Charts/Video - 16
Video
Pixel is always white
or always black
PowerBook 180c: In general, no display should be replaced
because of subpixel irregularities. If the number of
irregularities on a display appears excessive, contact Apple for
more information.
Note: Each pixel on an active-matrix color display consists of
three subpixels (red, green, and blue). In turn, each subpixel
has a transistor that controls light transmission. A PowerBook
180c display, therefore, contains a total of 921,000 transistors
(640 x 480 x 3). Due to technology constraints, subpixel
transistor irregularities (red, green, blue, black, and white) are
allowed in this display.
PowerBook 165c: replace display.