Acer AL922 AL922 Monitor Service Guide - Page 24
CN1 Digital Video input Connector: DVI-D
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3.6.4 J1 Pin NO. 1 2 3 4 5 6 7 8 9 10 Signal NC LED-Y LED-G GND KEY-POWER KEY-DOWN KEY-R KEY-L KEY-UP GND Comment NC Power saving mode Monitor is ON GND Power ON/OFF key Function select counter-clockwise key Adjust up key Adjust down key Function select counter-clockwise key GND 3.6.5 CN1 Digital Video input Connector: DVI-D Pin-Assignment of DVI-D(24 pin) connector 1 TX2- 9 TX1- 17 TX0- 2 TX2+ 10 TX1+ 18 TX0+ 3 Shield (TX2 / TX4) 11 Shield (TX1 / TX3) 19 Shield (TX0 / TX5) 4 NC 12 NC 20 NC 5 NC 13 NC 21 NC 6 DDC-Serial Clock 14 -5V Power *) 22 Shield (TXC) 7 DDC-Serial Data 15 Ground (+5V) 23 TXC- 8 No Connect 16 Hot plug detect 24 TXC+ *)In case, the power of the PC unit is switched off and the power the monitor is switched on, no voltage may occur at pin 14. 24