A3 Analog Daughter Board Replacement; Tools Required; Removal Procedure; Replacement Procedure - Keysight E4980A Service Manual

Replacement Procedure

A3 Analog Daughter Board Replacement

A3 Analog Daughter Board Replacement

Tools Required

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Removal Procedure

Refer to
Step 1. Remove the 3/4 rack module top as described in
Replacement" on page
Step 2. Disconnect the front USB cable (item 1) from the front panel assembly.
Step 3. Disconnect the LCD cable (item 2) from the A1 Mother Board.
Step 4. Disconnect the power supply cable (item 3) from the A3 Analog Daughter
Board.
Pull out the power supply cable straight without touching the hook on the
cable connector.
Step 5. Disconnect the two SMB cables (item 4) from the A3 Analog Daughter Board.
Step 6. Disconnect the Analog Source Cable (item 5) from the A3 Analog Daughter
Board.
Step 7. Remove the four TORX T10 screws (item 6) fastening the A3 Analog Daughter
Board.
Step 8. Remove the A3 Analog Daughter Board.
Replacement Procedure
Step 1. Reverse the order of the removal procedure.
When you replace the A3 Analog Daughter Board, stick the Foot Bumper
(item 7) to the backside of the board as location of sub-figure in
When you fasten the A3 Analog Daughter Board with the four TORX T10
screws, set screwdriver's torque to 8.7 in-lb.
When you connect the LCD Cable to the A1 Mother Board, make sure the
LCD Cable lies beneath the Analog Source Cable.
Keysight E4980A/E4980AL Precision LCR Meter
Torque screwdriver, TORX T10
Torque screwdriver, TORX T20
Figure 6-4 and for this procedure.
73.
"3/4 Rack Module Top
Figure 6-4.
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