HP LD4220tm and LD4720tm Digital Signage Touch Displays

Identifying display components
The components of the display and their functions are identified in the following sections.
Display components
Figure 3-15 HP LD4220tm—Display components
Figure 3-16 HP LD4720tm—Display components
Component Function
1 IR receiver Receives signals from the remote control
2 LED indicator light Light is blue when display is on, amber when display is in power saving mode
3 Display control buttons Power and OSD control buttons
4 Power cord receptacle Power cord receptacle to connect the display to an electrical outlet
5 Display signal ports RGB IN/OUT, HDMI/DVI, RS-232-C IN/OUT, Audio IN, DisplayPort IN/OUT, USB,
LAN
6 External speaker connections Connections for external speakers
7 Touch port Connects the monitor and PC with a USB cable
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