Troubleshooting

Symptom

Solution

Turning ON (|) the standby switch does not start up the system.

• Confirm that the power cable is properly plugged in.

• Confirm that the line switch on the rear panel is turned ON.

The system starts up, but immediately shuts down automatically.

Execute the system recovery.

The system starts up, but enters the service mode (The instrument status bar in the lower right part of the screen displays SVC in red).

Execute the system recovery.

The measurement screen appears after startup, but the date and time displayed on the instrument status bar in the lower right part of the screen differs greatly from the previous settings.

Execute the system recovery.

The measurement screen appears after startup, but the power-on test fails, with Error Message 241 appearing against a red background in the instrument message/warning area in the lower left part of the screen.

Execute the system recovery.

Symptom

Solution

The Error Message "Port N receiver overload" (N denotes a port number) is displayed.

During the measurement of an amplifier, Error Messages 221 through 224 "Port N receiver overload" (N denotes a port number) are displayed.

This error occurs when the input to a test port exceeds the maximum input level in the measurement of an amplifier. The measurement value obtained in such a case is not correct. In the worst case, a failure (damage to the receiver) may occur.

• Disconnect any cables or adapters on test ports.

• Change the measurement condition so that the input to the test port does not exceed the maximum input level.

• When you measure the 3rd harmonics over 8.5 GHz, it is recommended to suppress the carrier signal using filter etc. before executing the measurement for accurate results.

A clearly abnormal measurement value

The measurement value is not reproducible, or clearly abnormal.

• Confirm that the DUT, connection cables, and other parts are connected correctly.

• Confirm that the connectors and cables used to connect the DUT are free from damage or poor contact.

• Confirm that the calibration has been executed correctly. If you have not acquired a correct error correction factor, you cannot obtain a correct measurement value.

• Confirm that the calibration kit was selected correctly.

• Confirm that the calibration kit is defined correctly.

• Confirm that if the stimulus signal output is turned ON.

The system cannot be operated manually (Front Panel Keys, Keyboard, Touch Screen and Mouse)

The keyboard or mouse becomes inoperable.

• Confirm that the keyboard or mouse is connected correctly. When it is connected correctly, turn OFF the power once, and restart the system.

The front panel key or keyboard becomes inoperable.

• Using the mouse, turn System > Key Lock > Front Panel & Keyboard Lock OFF.

The touch screen becomes inoperable.

• Using the front panel keys, press System > Key Lock > Touch Screen & Mouse Lock OFF to turn OFF the lock.

• Execute the calibration of the touch screen.

• After the System Recovery, touch screen may be inoperable. See the Reconfiguring Touch Panel Setting in the installation guide.

The mouse becomes inoperable.

• Using the front panel keys, press System >  Key Lock > Touch Screen & Mouse Lock to turn OFF the lock.

All of the front panel keys, keyboard, and mouse become inoperable.

• Confirm that the keyboard or mouse is connected correctly. When it is connected correctly, turn OFF the power once, and restart the system.

The keyboard and mouse are connected after power-ON.

• Turn OFF the power once, and restart the system. When all these measures do not recover operability, there is a possibility that device failure has occurred.

The screen freezes and all operations become impossible.

The measurement in progress or screen update is stalled and all of the front panel keys, keyboard, mouse, and touch screen are inoperable.

• Press the standby switch to turn OFF the power once, and restart the system.

The system freezes while in operation.

• Press the standby switch to turn OFF the power once, and restart the system.

The rear cooling fan does not operate.

• There is a possibility of a failure.

The sweep action stops during measurement or is notvexecuted. An error or warning message appears.

• There is a possibility of a failure.

An error or warning message is displayed on the instrument message/warning area in the lower part of the screen

• Refer to Error Messages and Warning Messages.

Symptom

Solution

Cannot output a measurement screen or data to a printer.

Attempting to output to a printer causes Error Messages 120 and 121 to appear.

• Confirm that the power to the printer is turned ON and that the line cable is connected correctly.

• Confirm that the connector cable of the printer is connected correctly.

• Confirm that the printer is online.

• Confirm that the printer has not run out of paper.

• Confirm that the printer has not run out of ink.

Does not respond to an external controller or fail to function correctly.

A GPIB device does not respond to the external controller  or fails to function correctly.

• Confirm that the GPIB address is defined correctly.

• Confirm that the GPIB cable is connected.

• Confirm that another instrument connected by the GPIB cable has the same GPIB address.

• Confirm that the GPIB cable connection forms a loop.