Rockwell Automation 6189V-xxxx Non-display Industrial Computers User Manual - Manual (Page 46)

46 Rockwell Automation Publication 6177R-UM002D-EN-P - October 2014
Chapter 4 Component Replacement
Replace the Power Supply
Unit Follow these steps to replace the power supply unit (PSU).
1. Follow the steps for Pre-configuration on page 36 .
2. Remove the computer cover as detailed in Remove the Cover on page 38 .
3. For 750R computers, lay the computer on its side (components showing).
4. Remove the factory-installed chassis cross member or optional I/O card
retention bracket as detailed in Install I/O Card Retention Bracket on
page 98 .
5. Cut the cable ties with side cutters in the following locations.
IMPORTANT Use an antistatic wriststrap that is connected to the work surface, and properly
grounded tools and equipment when you handle internal computer components.
ATTENTION: The photo shows a 1450R computer, which has six cable
ties to cut. The circle with blue line is the cable tie to the PCI expansion
board, which does not apply to 750R computers.