Out Att Test; Input Att Test - Agilent Technologies E4991A Service Manual

Out ATT Test

This test is to check if the Output Attenuator on A3 Board is changed normally.
Required Equipment
Description
Calibration Kit
Procedure
The following is the procedure to perform the Out ATT Test.
Step 1. Connect the Test Head to the instrument.
Step 2. Open the External Test dialog box as described in "To Execute the External Test" on
page 189.
Step 3. Click on External Test dialog box.
3.Out ATT
Step 4. Connect the 50ohm Termination of the 16195B to DUT Port on the Test Head. Then click
.
OK
Step 5. Click
OK & Next>>

Input ATT Test

This test is to check if the Input Attenuator on A4 Board is changed normally.
Required Equipment
Description
Calibration Kit
Procedure
The following is the procedure to perform the Input ATT Test.
Step 1. Connect the Test Head to the instrument.
Step 2. Open the External Test dialog box as described in "To Execute the External Test" on
page 189.
Step 3. Click on External Test dialog box.
4.Input ATT
Step 4. Connect the 50ohm Termination of the 16195B to DUT Port on the Test Head. Then click
.
OK
Step 5. Click
OK & Next>>
Chapter 4
External Tests Failure Troubleshooting
Recommended Model
16195B (50 ohm)
to go to the next test.
Recommended Model
16195B (50 ohm)
to go to the next test.
Troubleshooting
191