HP Engage One Retail System 143, Справочник по аппаратуре

Страница: 39 / 65

2. Press the head unit onto the VESA mount (1) if it is not already attached, and then install the security
screw (2) in the release button hole on the VESA mount.
Removing the display panel
You must remove the display panel from the computer head unit to access internal computer components.
1. Turn off the computer properly through the operating system, and turn off any external devices.
2. Disconnect the power cord from the computer.
IMPORTANT: Regardless of the power-on state, voltage is always present on the system board as long
as the system is plugged into an active AC outlet. You must disconnect the power cord and wait
approximately 30 seconds for the power to drain to avoid damage to the internal components of the
computer.
3. Remove the computer head unit from the stand. See Removing the Engage One head unit from the stand
on page 24 .
4. Loosen the three captive screws in the slot on the bottom of the computer head unit.
Removing the display panel 31