R3765/67G Series Network Analyzer Operation Manual
8.1 Inspection and Simple Troubleshooting
8-1
8
IN ABNORMALITIES
Read this chapter when the R3765/67G series becomes abnormal.
8.1
Inspection and Simple Troubleshooting
If the R3765/67G series becomes abnormal, check the following items before asking for repair.
When the trouble cannot be resolved by the following countermeasures, contact a sales
representative. The addresses and the phone numbers are mentioned at the end of this manual.
The fare will be charged on the user even for a repair as shown in the table below.
Symptom
Assumed cause
Remedy
The power cannot
be turned on.
Power cable is not surely
inserted in the connector.
Turn the power switch OFF, and re-
connect the power cable.
Power fuse is blown.
Replace power fuse.
No trace appears
on the screen.
BACK LIGHT is set to OFF.
Press the BACK LIGHT to switch
ON.
Input cable or connector is loose.
Re-connect the input cable or
connector.
Does not sweep.
Setting of the trigger is SINGLE.
Set to CONTINUOUS.
The measured
result is incorrect.
The calibration was not
performed correctly.
Execute the calibration meeting the
measurement.
Key does not work.
In GPIB remote control mode.
When a program is being executed,
stop it and press LCL key.
Data cannot be
read (recalled) from
floppy disk.
Floppy disk defect.
Check operation with other floppy
disk.
FDD (Floppy disk drive) defect.
Ask ADVANTEST for repair.
Not set to A:drive.
Set it to A:drive
Data cannot be
recorded (saved) in
floppy disk.
The floppy disk is not initialized.
Initialize the floppy disk.
The write protect is enabled.
Release the write protect.
Not set to A:drive.
Set it to A:drive.