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

6-2
Replacing Assemblies
This chapter describes how to remove assemblies from the oscilloscope.
After you have removed an assembly, to install the replacement
assembly, follow the instructions in reverse order.
The removable assemblies include:
•Cabinet
•Fan
• Floppy Drive
•Front panel
•Display
•System board
• Power supply
•Keyboard
• Handle
Tools Used for Disassembly
Use these tools to remove and replace the oscilloscope assemblies:
• T8, T10, T15, and T20 TORX drivers
• 9/16-inch socket driver.
See how the Oscilloscope Parts Fit Together
An exploded view of the oscilloscope is included in the “Replaceable
Parts” chapter. It shows the individual part numbers used in the
assemblies, and shows you how the parts fit together.
Read All Warnings and Cautions
Read the following warnings and cautions before removing and replacing
any assemblies in the oscilloscope.
service.book Page 2 Wednesday, December 18, 2002 8:35 AM