Advantech PCM-7130 Instrukcja Użytkownika Pobierz pdf (Strona 72)

PCM-7130 User’s Manual 60

Appendix B Passive Matrix LCD Display

B.1 Appendix B Passive Matrix LCD Display

As mentioned in Section 1.3 of Chapter 1, the PCM-7130 supports pas-

sive matrix LCD display such as STN/DSTN LCD panels. However,

there is a power input, the V

contrast

, varies according to different STN

LCD. Therefore every system having STN LCD display must provide dif-

ferent V

contrast

to its specific mating panel.

The PCM-7130 is verified to support Nan-ya 7.4” VGA DSTN LCD

(LCBLDT163M9T). However, it takes a piece of adapter board which

boosts the normal 3.3V on the PCM-7130 to higher level, and serve it to

the LCD as V

contrast

max = 26.8 V, min = 22.3 V, default = 24.4 V. This

voltage can be adjusted by system configurator utility.

This piece of adapter board is mounted on the PCM-7130 as shipped to

users. With it users can connect PCM-7130 to either TFT LCD or DSTN

LCD specified above.

Figure B.1: 6.4” LCD

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