Operating Problems - Anritsu S412E Maintenance Manual

8-3 Operating Problems

Boot-up Self Test Fails
The unit boot-up self test fails with an error message:
1. Perform a Factory Defaults reset. This done by holding the Esc key down while pressing the On/Off key
to power on the unit. During boot up a message will be seen in the lower left hand corner "Applying
Factory Defaults".
2. The Main/VNA PCB may have failed. Replace the Main/VNA PCB Assembly for the S412E.
8-3 Operating Problems
Battery Pack Charging Problems
1. Refer to Chapter 6, "Battery Information and
Touchscreen Problems
Unit boots correctly, but the touchscreen is unresponsive.
1. The touchscreen may have lost its calibration data. Press Shift then 0 to enter the touchscreen calibration
procedure. Follow the on-screen directions.
2. Check the version of firmware installed on the unit and ensure it's version 1.04 or greater. If not, install
the latest version of firmware and redo the touchscreen calibration as described in step 1.
3. Replace the touchscreen.
Vector Network Analyzer Problems
Lock Error Message
1. VNA Port may have damaged or Main PCB Assembly may have failed.
2. Replace Main/VNA PCB Assembly.
Measurement Problems
1. Inspect VNA Port 1 and Port 2 connectors for damage.
2. Inspect the Open, Short, Load and cable(s) for damage. Verify their operation on a suitable test
instrument.
3. Main/VNA PCB Assembly may have failed or damaged. Replace Main/VNA PCB Assembly for the S412E.
Spectrum Analyzer Problems
Lock Error Message
1. Spectrum Analyzer PCB Assembly may have failed or damaged. Replace SPA PCB Assembly for the
S412E.
Measurement Problems
1. Inspect the Spectrum Analyzer RF In connector of damage.
2. Refer to the User Guide and Measurement Guide.
3. Spectrum Analyzer PCB Assembly may have failed or damaged. Replace SPA PCB Assembly.
Option 10, VNA Bias Tee Problems
1. Verify that the current load of the device attached does not exceed the current capability of the S412E.
2. Perform VNA Mode Bias Tee Operational Check, Option
3. Main/VNA PCB Assembly may have failed or damaged. Replace Main/VNA PCB Assembly for the S412E.
8-2
Replacement".
10.
PN: 10580-00324 Rev. N
Chapter 8 — Troubleshooting
S412E MM