14-28 Chapter 14
Assembly Replacement and Post-Repair Procedures
A15 Preregulator
A15 Preregulator
Tools Required
• T-10 TORX screwdriver
• T-15 TORX screwdriver
• ESD (electrostatic discharge) grounding wrist strap
Removal
1. Remove the rear panel (refer to “Rear Panel Assembly” on page 14-14).
2. Remove the two remaining screws from the top of the rear frame.
3. Refer to Figure 14-13. Disconnect the wire bundle (A15W1) from A8J2 and A17J3.
4. Remove the preregulator (A15) from the frame.
Replacement
1. Reverse the order of the removal procedure.
NOTE
• When reinstalling the preregulator (A15), make sure the three grommets
(item 1) on A15W1 are seated in the two slots (item 2) on the back side of
the preregulator and the slot (item 3) in the card cage wall.
• After reinstalling the preregulator (A15), be sure to set the line voltage
selector to the appropriate setting, 115 V or 230 V.
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