Lenovo L152 Technical Information, Signal connector pin assignment, Visual Inspection

Chapter 5

			Technical Information
5.1 Signal connector pin assignment
PIN	Signal (D-sub)	PIN	Signal (D-sub)
1	Red	9	+5V Input
2	Green	10	Ground
3	Blue	11	Ground
4	Ground	12	SDA (FOR DDC)
5	Self Test	13	H. Sync
6	Red Ground	14	V. Sync
7	Green Ground	15	SCL (FOR DDC)
8	Blue Ground

1	5
6	10
11	15

15-Pin mini D-Type male connector

5.2 Visual Inspection

Permanently unlit or lit pixels

The standard of production techniques today cannot guarantee an absolutely fault- free screen display. A few isolated constant lit or unlit pixels may be present. The maximum permitted number of pixels faults is stipulated in the stringent international standard ISO 13406-2 (Class II).

Example: a 17" flat-screen monitor with a resolution of 1280 x 1024 has 1280 x 1024

=1310720 pixels. Each pixel consists of three subpixels (red, green and blue), so there are about 4 million dots in total.

According to ISO 13406-2 (Class II), a maximum of 6 pixels and 7 subpixels may be defective, i. e. a total of 25 faulted dots. This corresponds to approx. 0.002 % of the entire screen surface.

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