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Tektronix ths3000 series, Техническое описание

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Performance Veri

fi

cation

16.

Press F4 TRIGGER OPTIONS to open the Trigger Options menu.

17.

Choose Video on 1 and then press Enter.

18.

Choose Polarity: Negative and then press Enter.

19.

Choose NTSC (or the standard that you want to test), then press Enter.

20.

Use the arrow buttons to select line number 310 for PAL or SECAM, or 262 for NTSC.

21.

Check to see that the oscilloscope triggers on line number 310 for PAL or SECAM, or 262 for NTSC.

Probe Calibration Generator Test

1.

Connect the test setup as shown. (See Figure 10.)

Figure 10: Probe calibration connections

2.

Press the Ch 1 button and then F3 to open the PROBE ON 1 menu.

3.

Set the Probe Type to Voltage and the Attenuation to 10:1.

4.

Press F1 - PROBE CAL and then press F4 - YES.

5.

Using the probe compensation adjustment on the probe, adjust the square wave response to a pure square wave
(pulse top must be straight).

6.

Press F4 - CONTINUE to start the DC calibration that is performed automatically.

7.

Repeat the test for the remaining channels on the oscilloscope.

The Probe Calibration Generator performance is veri

fi

ed when all of the on-screen functions

fi

nish successfully.

End of performance veri

fi

cation procedures.

Technical Reference

19

Содержание ths3000 series

Страница 1: ...x THS3000 Series Oscilloscopes Performance Verification and Adjustments ZZZ Technical Reference P077060600 077 0606 00...

Страница 2: ......

Страница 3: ...THS3000 Series Oscilloscopes Performance Verification and Adjustments ZZZ Technical Reference xx www tektronix com 077 0606 00...

Страница 4: ...and pending Information in this publication supersedes that in all previously published material Specifications and price change privileges reserved TEKTRONIX and TEK are registered trademarks of Tek...

Страница 5: ...es taxes and any other charges for products returned to any other locations This warranty shall not apply to any defect failure or damage caused by improper use or improper or inadequate maintenance a...

Страница 6: ......

Страница 7: ...AC Voltage Accuracy Test 8 AC Coupled Low Frequency Test 9 Peak Measurement Accuracy Test 10 Frequency Measurement Accuracy Test 11 Input Phase Measurement Test 12 Time Base Test 13 Trigger Sensitivit...

Страница 8: ...Table of Contents ii Technical Reference...

Страница 9: ...ing the probe from the measurement instrument Ground the product This product is grounded through the grounding conductor of the power cord To avoid electric shock the grounding conductor must be conn...

Страница 10: ...ctices that could result in damage to this product or other property Symbols and Terms on the Product These terms may appear on the product DANGER indicates an injury hazard immediately accessible as...

Страница 11: ...r person capable of rendering first aid and resuscitation is present Disconnect Power To avoid electric shock switch off the instrument power then disconnect the power cord from the mains power Use Ca...

Страница 12: ...cking the oscilloscope performance and for making adjustments to achieve the warranted specifications of the THS3000 Series Oscilloscopes WARNING The procedures included in this manual are for use by...

Страница 13: ...equipment Equipment Minimum requirements Recommended test equipment 1 Calibration generator Multiple signal outputs including television video signals 2 Fluke 5500A with SC300 or SC600 oscilloscope ca...

Страница 14: ...menu you can set the input on off input coupling probe type and attenuation polarity and bandwidth A menu item highlighted in white indicates the current setting A menu item highlighted in black indic...

Страница 15: ...and verify that the display shows no abnormalities as for example very light pixels or lines 9 Press F2 NEXT The oscilloscope displays Contrast CL 0100 10 Press F2 NEXT again to display Contrast CL 01...

Страница 16: ...easure Measurement on V dc Acquire Options Glitch Off Memory Short Average Off Waveform Normal Ground level centered vertically Horizontal scale 10 ms div 3 Set the oscilloscope to display Channel 1 4...

Страница 17: ...mV to 44 117 mV 50 mV div 106 06 mV 101 83 mV to 110 28 mV 100 mV div 212 13 mV 203 67 mV to 220 58 mV 200 mV div 424 26 mV 407 35 mV to 441 16 mV 500 mV div 1 0607 V 1 0184 V to 1 1030 V 1 V div 2 12...

Страница 18: ...dwidth 20 kHz HF Reject Measure Measurement on V dc Acquire Options Glitch Off Memory Short Average Off Waveform Normal Ground level centered vertically Horizontal scale 10 ms div 3 Set the oscillosco...

Страница 19: ...143 mV to 157 mV 300 mV 291 mV to 309 mV 100 mV div 300 mV 291 mV to 309 mV 600 mV 586 mV to 614 mV 200 mV div 600 mV 586 mV to 614 mV 1 50 V 1 43 V to 1 57 V 500 mV div 1 50 V 1 43 V to 1 57 V 3 00 V...

Страница 20: ...Channel 1 4 Set the oscilloscope vertical sensitivity to the first value in the table See Table 4 5 Set the calibration generator to the first value in the table 6 Enable the calibration generator ou...

Страница 21: ...oscope to Coupling AC Probe Type Voltage Attenuation 1 1 Input Options Polarity Normal Bandwidth 20 MHz Measure Measurement on V ac Acquire Options Glitch Off Memory Short Average Off Waveform Normal...

Страница 22: ...erage Off Waveform Normal Ground level centered vertically Horizontal scale 1 ms div 3 Set the oscilloscope to display Channel 1 4 Set the oscilloscope vertical sensitivity to 100 mV div 5 Set the cal...

Страница 23: ...nable the calibration generator output 7 Verify that the measured output voltage on the oscilloscope is within the range shown under the appropriate column 8 Continue through the test values remaining...

Страница 24: ...rator to the first value in the table See Table 6 Note Without a 50 termination installed the leveled sine wave output amplitude will be twice the set value 6 Enable the calibration generator output 7...

Страница 25: ...Polarity Normal Bandwidth 20 MHz Acquire Options Glitch Off Memory Short Average Off Waveform Normal Vertical sensitivity to 500 mV div Ground level centered vertically Horizontal scale 10 ms div 5 Po...

Страница 26: ...tal position to view the pulse edge Verify that the rising edge is at the second grid line from the left The allowed deviation is 3 pixels See Figure 7 on page 14 Figure 7 Allowable variance in time b...

Страница 27: ...0 8 ms time marker 14 Examine the rising edge of the time marker pulse at the height of the trigger level indicator top You may need to adjust the horizontal position to view the pulse edge Verify tha...

Страница 28: ...put 8 Adjust the calibration generator output voltage until the displayed waveform amplitude matches the value listed in the last column of the table See Table 7 9 Verify that the oscilloscope has tri...

Страница 29: ...t the calibration generator frequency to the first value in the table See Table 8 8 Enable the calibration generator output 9 Verify that the measured output voltage is within the range shown in the m...

Страница 30: ...ne number 9 Use the arrow buttons to select line number 622 for PAL PALplus or SECAM 525 for NTSC Note Hold down the arrow buttons to scroll through faster 10 Use the Vertical Scale button to set the...

Страница 31: ...as shown See Figure 10 Figure 10 Probe calibration connections 2 Press the Ch 1 button and then F3 to open the PROBE ON 1 menu 3 Set the Probe Type to Voltage and the Attenuation to 10 1 4 Press F1 PR...

Страница 32: ...st Minimum Incoming Outgoing Maximum Vertical Accuracy 2 mV div 3 951 mV 4 517 mV 5 mV div 10 183 mV 11 028 mV 10 mV div 20 368 mV 22 058 mV 20 mV div 40 735 mV 44 117 mV 50 mV div 101 83 mV 110 28 mV...

Страница 33: ...V 61 4 mV 143 mV 157 mV 50 mV div 143 mV 157 mV 291 mV 309 mV 100 mV div 291 mV 309 mV 586 mV 614 mV 200 mV div 586 mV 614 mV 1 43 V 1 57 V 500 mV div 1 43 V 1 57 V 2 91 V 3 09 V 1 V div 2 91 V 3 09 V...

Страница 34: ...10 ms div 877 mV 923 mV 500 mV div 20 s div 863 mV 937 mV 1 V div 1 80 V 2 20 V 2 V div 3 75 V 4 25 V 5 V div 8 63 V 9 37 V 10 V div 18 0 V 22 0 V 20 V div 37 5 V 42 5 V 50 V div 86 3 V 93 7 V 100 V d...

Страница 35: ...trigger 400 mVpp 100 MHz Stable trigger 800 mVpp 150 MHz Stable trigger 400 mVpp 200 MHz Stable trigger 800 mVpp 250 MHz Stable trigger AC Voltage Accuracy and Bandwidth 1 MHz 835 mV 965 mV 25 MHz 79...

Страница 36: ...cilloscope to settle Verify that the oscilloscope battery is charged sufficiently Power the oscilloscope with the Battery Charger Power Adapter Tektronix part number 119 7900 xx Calibration Procedure...

Страница 37: ...unless otherwise stated The calibration adjustment screen shows the actual calibration step name and number and its status Cal Name CL nnnn Status Table 10 Screen message and key function descriptions...

Страница 38: ...s to select maximum darkness calibration Contrast CL 0100 2 Press CALIBRATE The display shows a dark test pattern 3 Using the arrow keys adjust the display to the maximum darkness at which the test pa...

Страница 39: ...mode and start at CL 0200 4 Press F2 NEXT Error Messages If error message 1000 is displayed during WarmingUp or PreCalibration step CL0215 the Main PCA hardware version is not suitable for the install...

Страница 40: ...n points in the table 8 Move the generator signal cable to the next input channel on the instrument and repeat steps 3 through 7 9 When you are finished set the 5500A to Standby Table 11 Input channel...

Страница 41: ...calibrator is in standby mode before making any connection between the calibrator and the instrument 4 Set the 5500A to operate OPR 5 Press F3 to start the calibration 6 Wait until the display shows...

Страница 42: ...CL 0664 20 V CL 0608 10 V CL 0609 25 V CL 0610 50 V set 5500A to OPR 8 Set the 5500A to Standby Input Position Proceed as follows to do the Input Position calibration 1 Press F2 to select calibration...

Страница 43: ...erator to the oscilloscope as shown See Figure 13 Figure 13 Input to 5500A normal output test setup 2 Press F2 to select the first calibration step in the table See Table 13 Table 13 Input voltage gai...

Страница 44: ...ect the next calibration step set the 5500A to the next calibration point and start the calibration Continue through all calibration points in the table 8 Set the 5500A to Standby and continue to the...

Страница 45: ...justment and or the probe calibration is done If you press NO the instrument returns to the calibration mode You can either calibrate the instrument again or press EXIT YES to save and exit Error Mess...

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