HP 512424-001 - Manual (Page 140)

Connector pin assignments
Maintenance and Service Guide 9–3
HDMI
Pin Signal
1 Transition minimized differential signal (TDMS) data 2+
2 TDMS data 2 shield
3 TDMS data 2-
4 TDMS data 1+
5 TDMS data 1 shield
6 TDMS data 1 shield
7 TDMS data 0+
8 TDMS data 0 shield
9 TDMS data 0-
10 TDMS clock +
11 TDMS data clock shield
12 TDMS data clock-
13 Consumer electronics control
14 Not connected
15 Display data channel (DDC) clock
16 DDC data
17 Ground
18 +5V Power
19 Hot plug detect