Keysight Technologies N5290/1A PNA Series Service Manual page 64

System Tests and Adjustments
N5292A Functional Verification Procedure
Millimeter-wave (mmW) Heads Sense Voltage (Head Detect)
This section assumes you have already downloaded the Launch Test
application to your PC. If not, refer to
Loading the N5292A Test Set Functional Verification Software (Launch
Test)" on page
This test verifies the test set mother board (TSMB) is generating the correct
voltages to drive the millimeter-wave (mmW) heads. Refer to
page 3-30.
Equipment:
— 26.5 GHz PNA-8 with Option 020
— Adjustment screw (SV 081-90-009)
— Adjustment tool.
— PC with Launch Test application loaded (
1. Verify the PNA is positioned bottom-side up.
2. Power up the N5292A test set.
3. Power up the PNA and If the Launch Test application is not open, open it
or to learn how, refer
N5292A Test Set Functional Verification Software (Launch Test)" on
page
4. Press Head Detect
5. In the Head Detection window, click on the port you want to verify.
6. Using the screwdriver adjustment tool, insert a test screw (SV 081-
80-009), into the test set connector hole (right side of connector), starting
at the zero-point (no threads screwed in), and follow the screen prompts.
LED Port 1–4 reference designators:
— Port 1: DS28
— Port 2: DS30
— Port 3: DS29
— Port 4: DS31
IMPORTANT! Do not rotate the jack screw adjustment tool greater than ~5
clockwise (cw) rotations, because the detection circuit can become
damaged.
If the port LED turns on with fewer than two turns, the fail-safe circuit is
too sensitive. And, the connector needs to be replaced. Refer to
"Repair and Replacement Procedures."
3-28
3-22.
to"PNA Calibration (Pna Cal) and Loading the
3-22.
"PNA Calibration (Pna Cal) and
Figure 3-18 on
)
Keysight N5290/1A Service Guide
Chapter 7,