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Assembly Replacement
A4 Power Supply (Option 1EM)
8. Disconnect A4W1 from the motherboard (A14).
9. Remove the five screws (item 5) that attach the power supply shield (item 2) to the instrument chassis (item 6).
10
. Pull the power supply shield away from the instrument chassis.
11
. Remove the 12 screws (item 7) that attach the power supply to the power supply shield.
12
. Remove the power supply (A4) from the front end of the shield.
Replacement
1. Reverse the removal procedure and torque all T-10 TORX screws to 9 in-lbs.
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