Inverter Replacement; Tools Required; Removal Procedure; Replacement Procedure - Agilent Technologies E4980A Service Manual

Replacement Procedure

Inverter Replacement

Inverter Replacement

Tools Required

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Removal Procedure

Refer to Figure 6-17 for this procedure.
Step 1. Remove the 3/4 Rack Module Top as described in "3/4 Rack Module Top Replacement" on
page 90.
Step 2. Remove the A3 Analog Daughter Board as described in "A3 Analog Daughter Board
Replacement" on page 94.
Step 3. Remove the A2 Analog Board as described in "A2 Analog Board Replacement" on
page 96.
Step 4. Remove the Front Panel Assembly as described in "Front Panel Assembly Removal" on
page 98.
Step 5. Disconnect the display cable (item 1) from the Inverter.
Step 6. Release the Cable Assy from the clip (item 2) on the Front Panel Assembly.
Step 7. Disconnect the Cable Assy (item 3) from the Front Panel Assembly.
Step 8. Remove the two TORX T6 screws (item 4) fastening the Inverter and the insulator.
Step 9. Remove the Inverter (item 5) with the insulator (item 6) from the Front Panel Assembly.
Then, remove the Inverter from the insulator.
Replacement Procedure
Step 1. Reverse the order of the removal procedure.
NOTE When you fasten the Inverter and the insulator with the two TORX T6 screws, set
screwdriver's torque to 3.05 in-lb.
120
Torque screwdriver, TORX T10
Torque screwdriver, TORX T20
Torque screwdriver, TORX T6
Box torque wrench, 7 mm
Box torque wrench, 5/8 inch
Chapter 6