Tektronix 2230 Service Manual

Adjustment Procedure—2230 Service
INDEX TO ADJUSTMENT
PROCEDURE STEPS
Power Supply and CRT Display Page
1. Check/Adjust Power Supply DC Levels .............. 5-4
2. Adjust CRT Grid Bias........................................... 5-4
3. Adjust Astigmatism.............................................. 5-5
4. Adjust Trace Alignment ........................................ 5-5
5. Adjust Geometry................................................... 5-5
Vertical
1. Adjust Step Attenuator Balance .......................... 5-6
2. Adjust 2/5 mV DC Balance .................................. 5-7
3. Adjust Channel 1 Variable Balance ..................... 5-7
4. Adjust Channel 2 Invert Balance ......................... 5-7
5. Adjust MF/LF Compensation and
Gain Balance ....................................................... 5-7
6. Adjust Vertical Gain.............................................. 5-8
7. Check Deflection Accuracy and
Variable Range..................................................... 5-8
8. Check Input Coupling..’ ....................................... 5-9
9. Check Position Range.......................................... 5-9
10. Adjust/Check Acquisition Position
Registration ......................................................... 5-9
11. Adjust Acquisition Gain........................................ 5-10
12. Check Store Deflection Accuracy ........ ............... 5-10
13. Adjust Store Y Offset and Gain ........... ............... 5-11
14. Adjust Acquisition Position Offset ........................ 5-11
15. Check Save Expansion and Compression .......... 5-11
16. Adjust Attenuator Compensation ......................... 5-12
17. Check Alternate Operation ................................... 5-13
18. Check Chop Operation......................................... 5-13
19. Adjust High-Frequency Compensation and
Channel 2 High-Frequency Compensation .......... 5-13
20. Adjust 2 mV Peaking Compensation ................... 5-14
21. Adjust Acquisition High-Frequency Peaking ........ 5-14
22. Check Store Mode Cross Talk ............................ 5-15
23. Check Store Pulse Width Amplitude .................... 5-15
24. Check Average Mode........................................... 5-16
25. Check Bandwidth Limit Operation ....................... 5-16
26. Check Bandwidth................................................. 5-16
27. Check Repetitive Store Mode .............................. 5-16
28. Check Single Sweep Sample Acquisition ............ 5-17
29. Check Non Store and Store Channel Isolation.... 5-17
30. Check Common-Mode Rejection Ratio ............... 5-18
31. Check Probe Encoding......................................... 5-18
Horizontal Page
1. Adjust Horizontal Amplifier Gain .......................... 5-19
2. Adjust X I0 Horizontal Amplifier Gain .................. 5-20
3. Adjust Magnifier Registration ............................... 5-20
4. Check Sweep Length ........................................... 5-20
5. Check Position Range .......................................... 5-20
6. Check Variable Range .......................................... 5-20
7. Adjust/Check 4K to IK Display Compress .......... 5-21
8. Adjust Delay Timing and Readout ....................... 5-21
9. Adjust High-Speed Timing ................................... 5-21
10. Adjust 5 ns Timing and Linearity ......................... 5-22
11. Check Timing Accuracy and Linearity ................. 5-22
12. Check Delay Time Differential Accuracy .............. 5-23
13. Check Delay Jitter............................................... 5-24
14. Adjust Vector Generator ..................................... 5-24
15. Adjust Store X Offset and Gain .......................... 5-24
16. Adjust Clock Delay Timer ..................................... 5-24
17. Check Store Differential and Cursor Time
Difference Accuracy .............................................. 5-24
18. Check Sitore Expansion Range ............................ 5-25
19. Check A/B Sweep Separation............................. 5-25
20. Adjust X Gain................................................... 5-25
21. Check X-Y Store ............... 5-26
22. Check X Bandwidth .............................................. 5-26
23. Check A-Sweep Holdoff ....................................... 5-26
Trigger
1. Adjust Channel 1 Trigger Offset........................ 5-27
2. Adjust A and B Trigger Sensitivity........................ 5-28
3. Adjust P-P Auto Level .......................................... 5-28
4. Check Internal A and B Triggering....................... 5-28
5. Check HI-Reject A Triggering ............................. 5-29
6. Check External Triggering .................................... 5-30
7. Check External Trigger Ranges ........................... 5-30
8. Check Single Sweep Operation............................ 5-30
9. Check Acquisition Window Trigger Point ............ 5-31
External Z-Axis, Probe Adjust, External Clock,
and X-Y Plotter
1. Check External Z-Axis Operation......................... 5-32
2. Check Probe Adjust Operation............................. 5-32
3. Check External Clock ........................................... 5-33
4. Check X-Y Plotter ................................................. 5-33
5-3

Tektronix 2230 Specifications

General

Brand	Tektronix
Model	2230
Category	Test Equipment
Language	English