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PRINTER NOTE: Page size 9” x 9.25”. Align this page to top, right hand corner. Back box bleeds off
top and right edge. Left side of page extends to 9.25 inches.
1 Use the Operator Control Panel to identify the failed
power supply, refer to the illustration below to
identify the components.
Select “Hardware Menu” from the Main Menu and
choose “Component Status.”
Power Supply #1
“DC Good” LED
Power Supply #2
Power Supply #3
2 Locate the failed component from the rear panel of
the DEU. The “DC Good” LED for the failed power
supply will be OFF.
3 Loosen the rear door panel access screw, using a
flat-blade screwdriver.
If you are replacing the #3 power supply, loosen the
two PSU Cover Plate screws. Remove the cover plate
and skip to step 4.
4 Open the panel to gain access to power supplies #1
and #2. The panel is hinged.