User's Manual
Table Of Contents
- Title page
- Contents
- 1 General Information
- 2 Preparing the Oscilloscope for Use
- 3 Testing Performance
- List of Test Equipment
- To construct the test connector
- To test the 54621D/22D Oscilloscope digital channels
- To verify digital channel threshold accuracy
- To verify voltage measurement accuracy
- To verify bandwidth
- To verify horizontal Dt and 1/Dt accuracy
- To verify trigger sensitivity
- Agilent 54622A/22D/24A Performance Test Record
- Agilent 54621A/21D Performance Test Record
- 4 Calibrating and Adjusting
- 5 Troubleshooting
- 6 Replacing Assemblies
- 7 Replaceable Parts
- Declaration of Conformity
- Notices
4-9
Calibrating and Adjusting
To adjust the oscilloscope display
5
Adjust H.HOLD (horizontal hold) to center the display horizontally.
6 Adjust FOCUS to achieve the best focus.
7 Adjust V.LIN (vertical linearity) to position all four corners of the half-
bright borders equally.
8 Adjust V.SIZE (vertical size) to center the display vertically at the
maximum allowable size without losing the half-bright borders.
Because V.LIN and V.SIZE interact with each other, you may need to re-adjust
the sizing and vertical centering of the pattern on the display.
Figure 4-3
Oscilloscope Display Board Adjustments
service.book Page 9 Wednesday, December 18, 2002 8:35 AM