Installation • Installation
Chapter 3 Installation
Panel PC 900 User's Manual V1.05
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1.3 Replacing the CPU board and system unit
1. Disconnect the power supply to the B&R industrial PC (unplug the power cable!). Isolate from all potential
sources of electrical power!
2. Touch the housing or ground connection in order to discharge any electrostatic charge from your body.
Information:
If a bus unit is mounted on the Panel PC it must first be removed.
3. Remove the 4 Torx screws (T20) and 2 Torx screws (T10) shown in the following image.
Figure 56: Removing the Torx screws on the system unit
4. Remove the system unit with the installed CPU board.
Figure 57: Removing the system unit and CPU board
5. A different system unit with a preinstalled CPU board can now be installed on the display unit. Installation
takes place in reverse order. The max. tightening torque is 0.5 Nm for the T10 Torx screws and 1.2 Nm for
the T20 Torx screws.
It is very important that the system unit is installed correctly. The connector for the display interface must be
carefully connected to the female connector on the display unit.