Acer AL2021 Service Manual page 35

DVI-D Digital Receptacle Connector x 1
The PIN assignment of the 24 pin DVI-D connector / cable is as follows :
PIN Signal
1 TMDS data2- (RX2-)
2 TMDS data2+ (RX2+)
3 TMDS data2 shield (GND)
4 NC
5 NC
6 DDC clock
7 DDC data
8 Not connected
9 TMDS data1- (RX1-)
10 TMDS data1+ (RX1+)
11 TMDS data1 shield (GND)
12 NC
13 NC
14 +5V
15 Ground (return for +5 V and H/V sync)
16 Hot plug detect
17 TMDS data0-
18 TMDS data0+
19 TMDS data0 shield
20 NC
21 NC
22 TMDS clock shield (GND)
23 TMDS clock+
24 TMDS clock-
(SCL)
(SDA)
(RX0-)
(RX0+)
(GND)
(RXC+)
(RXC-)
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CN8
DVI-I