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Agilent Technologies
54621D, 54624A, 54622D, 54622A, 54621A
manual
General Information
Models:
54621A
54622A
54622D
54621D
54624A
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111 pages
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Troubleshooting
Performance Characteristics
Signals Ground
Warranty
Accessories available
Setting up the Oscilloscope
Location of the Fan Connector
Removing the keyboard assembly
To adjust the handle
Cleaning the oscilloscope
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General Information
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Contents
Agilent 54621D/22D Mixed-Signal Oscilloscope
Softkeys extend the functionality of command keys
Display shows current input signals
Horizontal Controls select sweep speed and delay parameters
Utilities
This Book
Contents
Solving General Problems with the Oscilloscopes
Troubleshooting the Oscilloscope
Contents
General Information
General Information
To inspect package contents
General Information
Package contents for 54620-Series Oscilloscopes
To inspect options and accessories
Option Description
Accessories available
Model Description
Power Cords
Plug Type Cable Part Number
Performance Characteristics
Acquisition Analog Channels
Acquisition Digital Channels on 54621D and 54622D only
Vertical System Analog Channels
Probe ID Agilent/HP Auto probe sense Tek Compatible
Vertical System Digital Channels 54621D and 54622D only
Accuracy = ±2.0%80 mV + 0.4%80 mV = ±1.92 mV
Horizontal
Sample rate of 200/400 MSa/s
Trigger System
Can
Analog Channel Triggering
Digital D15 D0 Channel Triggering 54621D and 5462 2D
External EXT Triggering
Measurement Features
Display System
FFT
Storage
General Characteristics
Power Requirements
Preparing the Oscilloscope for Use
Preparing the Oscilloscope for Use
Setting up the Oscilloscope
To adjust the handle
To adjust the handle
To power-on the oscilloscope
Press the power switch
To power-on the oscilloscope
To adjust the display intensity
To adjust the display intensity
Intensity control
To connect the oscilloscope probes
To connect the oscilloscope probes
To compensate your probe
Press Autoscale
To use the digital probes mixed-signal oscilloscope only
To use the digital probes mixed-signal oscilloscope only
Grabber
Signal Lead Ground Lead Grabber
Signals Ground
To connect a printer
To connect an RS-232 cable
To connect a printer
To verify basic oscilloscope operation
To verify basic oscilloscope operation
Press the Autoscale key on the front panel
Verifying Basic Oscilloscope Operation
Getting started using the oscilloscope interface
To verify basic oscilloscope operation
Using Quick Help
Preparing the Oscilloscope for Use
Loading a language from floppy disk
Loading a language from floppy disk
Cleaning the oscilloscope
Disconnect power from the instrument
Testing Performance
Testing Performance
If a performance test fails
List of Test Equipment
Equipment Critical Specifications
List of Test Equipment
Part Number
Materials Required to Construct the Test Connectors
To construct the test connector
To construct the test connector
Constructing the 8-by-2 Connector
To test the 54621D/22D Oscilloscope digital channels
Press the Autoscale key
To test the 54621D/22D Oscilloscope digital channels
To verify digital channel threshold accuracy
To verify digital channel threshold accuracy
Method 1 Using the Test Connector
Method 2 Using the Test Fixture
Threshold Accuracy Voltage Test Settings
Threshold voltage setting DC offset voltage setting Limits
To verify voltage measurement accuracy
Set up the oscilloscope
Equipment Critical Specifications Recommended Model/Part
To verify voltage measurement accuracy
Settings Used to Verify Voltage Measurement Accuracy
MV/Div 616 mV 384 mV
Using a Blocking Capacitor to Reduce Noise
Use a Blocking Capacitor to Reduce Noise
To verify bandwidth
To verify bandwidth
Equipment Required to Verify Bandwidth
Change the time base to 5 ns/div
Calculate the response using this formula
Signal Generator Frequency Setting
Selected Channel 54621A/21D 54622A/22D 54624A
To verify horizontal ∆t and 1/∆t accuracy
To verify horizontal Dt and 1/Dt accuracy
Measure the following
54622A/22D/24A only
54621A and 54621D only
To verify trigger sensitivity
To verify trigger sensitivity
Equipment Required to Verify Trigger Sensitivity
Test Internal Trigger Sensitivity
Test External Trigger Sensitivity
Agilent 54622A/22D/24A Performance Test Record
Agilent 54621A/21D Performance Test Record
Agilent 54621A/54621D
Calibrating and Adjusting
Calibrating and Adjusting
Hazardous Voltages
To adjust the power supply
To adjust the power supply
Prepare the oscilloscope for the voltage adjustment
Digital multimeter
Power Supply Voltage Tolerances
Supply Voltage Tolerance
+3.3V Adjustment
To perform User Cal
To perform User Cal
When to Adjust the Oscilloscope Display
To adjust the oscilloscope display
To adjust the oscilloscope display
Do not adjust Sub Bri or Cont controls
96,=
Troubleshooting
Troubleshooting
Read All Cautions and Warnings
Solving General Problems with the Oscilloscopes
If there is no trace display
If the trace display is unusual or unexpected
If the trace display is unusual or unexpected
If you cannot see a channel
If you cannot see a channel
Troubleshooting the Oscilloscope
Equipment Required to Troubleshoot the Oscilloscope
To construct your own dummy load
Connector Load Amps Resistor Watts
Location of the Low Voltage Power Supply Connectors
To construct your own dummy load
Connect the power cord, then turn on the oscilloscope
To check out the oscilloscope
To check out the oscilloscope
Display Signals on the System Board All Oscilloscopes
Low Voltage Power Supply Tolerances
Signal Name Frequency Pulse Width Voltage
Location of the Fan Connector
Is the fan running?
To check the Low Voltage Power Supply
To check the Low Voltage Power Supply
Low Voltage Power Supply Test Points
If the Fuse is Blown
Beware of Hazardous Voltages
To run the internal self-tests
To run the internal self-tests
Replacing Assemblies
Replacing Assemblies
Avoid Electrical Shock
To remove the cabinet
To remove the cabinet
Removing the cabinet
To remove the fan
To remove the fan
Removing the fan
To remove the floppy drive
To remove the floppy drive
Removing the floppy drive
To remove the front panel
To remove the front panel
Removing the intensity shaft and front panel
To remove the display
To remove the display
Removing the display
Unhooking the power switch shaft
To remove the system board
To remove the system board
Preparing to remove the system board
Removing the system board
To remove the power supply
To remove the power supply
Disconnecting ground wire and ribbon cable
Unhooking the power switch shaft
Removing the power supply
To remove the keyboard assembly
To remove the keyboard assembly
Lift the keyboard assembly straight out
Removing the keyboard assembly
To remove the handle
To remove the handle
Replaceable Parts
Replaceable Parts
To order a replacement part
To order a replacement part
Exploded View of the 54621A/22A/24A/21D/22D Oscilloscope
To order a replacement part Replaceable Parts
Reference Agilent Part Qty Description Designator Number
MP1
Option Accessory pouch and front-panel cover
Probes
Input Cable 54621D/22D only
Product Name
Manufacturer’s Name
Manufacturer’s Address
Model Numbers
Sound Pressure Level
Safety
Product Regulations
Regulatory Information for Canada
Safety
Document Warranty
Agilent Technologies, Inc
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