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Keysight E4980A Service Guide

Keysight E4980A
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Keysight E4980A/E4980AL Precision LCR Meter 91
Replacement Procedure
Base Plate Replacement
Base Plate Replacement
Tools Required
Torque screwdriver, TORX T20
Torque screwdriver, TORX T8
Torque screwdriver, TORX T10
Box torque wrench, 5/8 inch
Box torque wrench, 5.5 mm
Box torque wrench, 7 mm
Removal Procedure
Refer to Figure 6-10 for this procedure.
Step 1. Remove the Option Interface as described in “Option Interface Replacement”
on page 82.
Step 2. Remove the 3/4 Rack Module Top as described in “3/4 Rack Module Top
Replacement” on page 73.
Step 3. Remove the A3 Analog Daughter Board as described in “A3 Analog Daughter
Board Replacement” on page 77.
Step 4. Remove the A2 Analog Board as described in “A2 Analog Board Replacement”
on page 79.
Step 5. Remove the two TORX T10 screws (item 1) fastening the Shield Angle.
Step 6. Remove the Shield Angle (item 2) from the Base Plate.
Step 7. Remove the PPMC PCA as described in “PPMC PCA Replacement” on
page 84.
Step 8. Remove the A1 Mother Board as described in “A1 Mother Board
Replacement” on page 86.
Step 9. Remove the Power Supply Assembly as described in “Power Supply Assembly
Replacement” on page 88.
Step 10. Remove the seven TORX T20 screws (item 3) fastening the Base Plate.
Step 11. Remove the two TORX T20 screws (item 4) fastening the Base Plate and the
ground cables. Then, remove the ground cables (item 5).
Step 12. Remove the Rack Module Bottom from the Base Plate.
Step 13. Remove the Rear Panel as described from Step 9 to
Step 11 in “Rear Panel
Assembly Replacement” on page 94.
Step 14. Remove the Base Plate from the Rear Panel.

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Keysight E4980A Specifications

General IconGeneral
Frequency Range20 Hz to 2 MHz
Basic Accuracy0.05%
DC Bias Voltage0 V to ±40 V
Measurement FunctionsL, C, R, Z, D, Q
DC Bias Current0 A to 20 mA (using external DC bias source)
DisplayLCD
InterfaceLAN, USB, GPIB
Dimensions426 mm (W) x 177 mm (H)
Weight13.5 kg

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