Tektronix TDS1001C-EDU, Service Manual

Page: 49 / 114

Performance Veri fi cation
The two attenuator settings operate identically, so veri fi cation of the attenuation
range from -1.8 V to 1.8 V also veri fi es the attenuation range of -45 V to 45 V.
1. Set up the oscilloscope as shown in the following table:
Push menu button Select menu option Select setting
Default Setup
— —
Channels 1 , 2 , 3 , 4 Probe 1X
Channels 1 , 2 , 3 , 4 Volts/Div 50 mV/div
Source Ext 1 Trig Menu
Mode Auto
Acquire
Sample
—
Source Channel under test
Measure
Type Mean
1 The test operates without a trigger. To maintain uniformity and to avoid false triggering on noise, the Ext trigger is
the recommended source.
2. Make a spreadsheet approximately as shown in the example in Appendix A.
You only need to enter the values for column A and the equations. The values
in columns B, C, D, E, F, and G are examples of the measured or calculated
values.
The PDF version of the service manual (which you can download from
www.tektronix.com/manuals), includes an empty spreadsheet for your
convenience. To access and save the test spreadsheet, see the instructions
in
Appendix A: Example of a Vertical Position Accuracy Test Spreadsheet
on page A-1.
3. Connect the oscilloscope, power supply, and voltmeter as shown in the
following
fi gure:
TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual 37