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Contents
viii Assembly-Level Service Guide
To Calibrate the Offset for Channels 1 and 2 2-15
To Calibrate the Gain for Channels 1 and 2 2-18
To Calibrate Time Interval 2-19
CAL: TI QUIK? Calibration 2-20
Equipment 2-20
CAL: TI FINE? Calibration 2-21
Equipment 2-21
To Calibrate the Standard Timebase 2-23
To Calibrate the High Stability Timebase Option (Medium,
High, or Ultra-High) 2-24
About the HP 53181A Calibration Menu 2-25
Overview of the HP 53181A Calibration Menu 2-25
The HP 53181A Calibration Menu Tree 2-27
To View the Calibration Menu and Security Status 2-28
To Unsecure for Calibration 2-28
To Initiate the Calibration Routines 2-29
To Secure Against Calibration 2-29
To Change to New the Security Code 2-30
To View the Calibration Count 2-30
To Get Help with the Calibration Menu 2-30
The HP 53181A Calibration Procedures 2-31
First Determine the Counter Firmware Revision 2-31
To Calibrate the Offset for Channel 1 2-31
To Calibrate the Gain for Channel 1 2-33
To Calibrate the Standard Timebase 2-34
To Calibrate the High Stability Timebase Option (Medium,
High, or Ultra-High) 2-35
Pre-Troubleshooting Information 2-36
Safety Considerations 2-36
Recommended Test Equipment 2-37
Repair Considerations 2-38
Electrostatic Discharge 2-38