Troubleshooting
TDS 310, TDS 320 & TDS 350 Service Manual
6Ć35
8. Press the side menu button Display Log to display the diagnostics error
log. The error log contains summary data gathered over the life of the
oscilloscope and descriptions of the last 200 errors encountered (see
Figure 6Ć18). The last error in the list is the most recent and/or most
important; record this information and continue on to the TroubleshootĆ
ing Procedure in the next section to verify the failure and pinpoint the
faulty module.
Figure 6Ć18:ăThe Error Log
The Voltage, Timing, and External Trigger calibration menus are disabled at
the factory. To enable the calibration menus, perform the following steps.
NOTE
Early versions of the TDS 320 did not contain a cal jumper and did
not disable the calibration menus. Do not use this procedure on
those instruments.
1. Remove the Line Cord as described on page 6Ć9.
2. Remove the Rear Cover and Cabinet as described on page 6Ć13.
3. Set the oscilloscope so its top side is down on the work surface and its
front is facing you.
Enabling Calibration
Menus
