14-1
IM 703155-01E
Troubleshooting, Maintenance, and Inspection
14
14.1 Troubleshooting
• If a message is displayed on the screen, read the following pages.
• If servicing is necessary, or if the instrument is not operating correctly after performing
the corrective actions, contact your nearest YOKOGAWA dealer.
Problem
Probable Cause
Corrective Action
Reference
Section
The power does not turn ON.
Using a power supply outside the ratings. Use a correct power supply.
3.3
Nothing is displayed.
The main power switch is OFF.
Turn the main power switch ON.
3.4
The display is turned OFF.
Turn the display ON.
12.4
The display is odd.
The system is abnormal.
Power-cycle the VB8300.
3.4
Keys do not work.
A message is displayed.
Press the ESC key to clear the message. –
The numeric keys are in a shifted condition
Press the SHIFT key to turn OFF the
3.8
(alphabet entry mode) even though you
SHIFT key indicator.
wish to enter numbers.
The VB8300 is in remote mode.
Clear the communication interface control. *
(The VB8300 is being controlled through
communication commands.)
Key lock is ON.
Turn the key lock OFF.
12.5
Other causes.
Perform a key test.
14.3
If an error occurs, servicing is required.
Output waveform is odd.
Insufficient warm-up.
Warm up the VB8300 for 30 minutes
3.4
after turning ON the power.
Not calibrated.
Perform calibration.
12.1
Waveform data is no loaded.
Load the waveform data.
Chapter 4,
7.2, 10.3
An offset voltage is added.
Check the offset voltage setting.
5.4
The start trigger is ON.
Check the start trigger settings.
6.1
Digital output is selected.
Set the analog/digital output setting to analog. 5.6
Other causes.
Perform calibration and initialization.
12.1, 12.3
If the output waveform is still odd,
servicing is required.
Cannot save to the
The medium is not formatted.
Format it on a Windows PC.
10.1
specified medium.
The medium is write-protected.
Clear the medium’s write-protect.
–
No more free space on the medium.
Delete unneeded files or use another
–
storage medium.
Unable to set or control the
Serial interface parameters are not
Set the same parameter settings on the
*
instrument using
matched.
VB8300 and the PC.
communication commands.
The electrical specifications are not met.
Use it in a way that conforms to the
*
specifications.
* See the
Communication Interface User’s Manual (IM703155-17E)
.
Chapter 14 Troubleshooting, Maintenance, and Inspection
