Power Supply Replacement; Preliminary Requirements; Power Supply Removal - HP Model 745 - VME Workstation Handbook

Power Supply Replacement

Two power supplies are used in the Model 745 - a Cherokee and an Astek

Preliminary Requirements

1 Remove the top cover using the procedure earlier in this chapter.
2 Remove the front bezel using the procedure earlier in this chapter.
3 Remove the mid-tray using the procedure earlier in this chapter.

Power Supply Removal

1 Disconnect the four wire harness leads - three from the system backplane and one from
the ac switches. See Figure 5-29.
2 Slide the power supply out of the chassis.
3 If you are replacing the power supply with the same type supply, slide the new supply
into the chassis and reconnect the harnesses.
NOTE:
4 If you are replacing the supply with a different brand, you will need to move the screw
located in the system backplane cover plate (see Figure 5-30).
Power Supply Replacement
If you are installing an Astec power supply, make sure the long
cable from the far end of the supply is positioned in the slot under
the backplane cover (see Figure 5-30).
5-42