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giovedì 18 dicembre 2014

Asus eeePC 1005PE LVDS Cable pinout

I'm posting this pinout, because it can't be easily found, and using a multimeter it takes a lot to figure out, like it did for me


MB Connector Panel back connector Description
1 2 3.3VDD
2 4 EDID eeprom power ( 3.3V)
3 6 EDID eeprom CLK
4 7 EDID eeprom DATA
5 28 VDD_EN ( Active high, 3.3v)
6 30 VLED_EN (Active high, 3.3v)
7 22 GND
8 8 LVDS Channel 0 -
9 9 LVDS Channel 0 +
10 11 LVDS Channel 1 -
11 12 LVDS Channel 1 +
12 14 LVDS Channel 2 -
13 15 LVDS Channel 2 +
14 22 GND
15 17 LVDS Clock -
16 18 LVDS Clock +
17 1 GND
18 5 Backlight PWM ADJ
19 25 Led VCC ( 5V )
20 24 Led VCC ( 5V )


If you are planning to reuse the panel with an MT6820 board, set the panel voltage to 3.3volts , connect 3.3VDD and VDD_EN together, and connect all the gnd pins to gnd too.
About the backlight, for me it worked leaving VLED_EN open ( unconnected ) and ADJ connected to the BL pin of the mt6820 ( brightness , unless i've swapped for error the pins , does not seem to work )

The whole thing will draw about 1A @ 5V, so if you get an Y cable with a switch ( to prevent the mt6820 from powering on too early ), you can run it from two usb ports

The correct jumper configuration for the board is with only A closed , and all other open