PeakTech 4120 Serie Bedienungsanleitung Seite 101

10. Troubleshooting
(1) The instrument is powered on but no Display

Check if the power is connected properly.

Check if the Power Switch is in the proper voltage scale.

Check if the fuse which is below the AC Power socket is used appropriately and
in good condition (the cover can be pried open with a straight screwdriver).

Restart the instrument after the steps above.

If the problem still exists, please contact your distributor for service.
(2) The measured value of output signal amplitude disaccords to the displayed value:

Check if the actual load matches the set one. Please refer to "To Set the Output
Load".
If you encounter other problems, try to reset the settings (refer to "To Return to Default
Setting") or restart the instrument. If it still cannot work properly, please contact your
distributor for service.
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