W A R N I N G
Replacing Assemblies
To remove and replace the power supply
To remove and replace the power supply
Hazardous voltages exist on the power supply. To avoid electrical shock, disconnect the power from the instrument before performing the following procedures. After disconnecting the power, wait at least six minutes for the capacitors on the power supply board to discharge before servicing the instrument. However, if the AC LED on the power supply has any illumination, a significant charge remains on the capacitors.
HP 16500B
1Using previous procedures, remove the following assemblies:
•Top cover
•Flexible disk drive assembly
•Optional module card or filler panel in the top slot of the card cage
2Remove the power supply rear panel.
3Disconnect the color display to power supply cable from the power supply.
4Remove the four power supply mounting screws.
5Pull the power supply towards the rear panel of the mainframe until the power supply disconnects from the mother board connector.
6Lift the front end of the power supply and guide it out of the mainframe.
7Reverse this procedure to install the replacement power supply.
Before pushing the power supply into place, make sure that it is properly aligned with the front connector of the mother board and with the rail guides of the card cage.
HP 16501A
1Using previous procedures, remove the following assemblies:
•Top cover
•Optional module card or filler panel in the top slot of the card cage
2Remove the power supply rear panel.
3Remove the four power supply mounting screws.
4Pull the power supply towards the rear panel of the expansion frame until the power supply disconnects from the mother board connector.
5Lift the front end of the power supply and guide it out of the expansion frame.
6Reverse this procedure to install the replacement power supply.
Before pushing the power supply into place, make sure that it is properly aligned with the front connector of the mother board and with the rail guides of the card cage.
