Tektronix 2205 Service Manual

Adjustment Procedure—2205 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 .......... r..... 5-5
5. Adjust Geometry ............................................ 5-5
Vertical
1. Adjust Channel 1 Variable Balance ........ 5-6
2. Adjust Channel 2 Variable Balance ............. 5-6
3. Adjust Channel 2 Invert Balance ................. 5-7
4. Adjust Vertical Gain........................................5-7
5. Check Deflect ion Accuracy and
VOLTS/DIV Variable Range ............ . . 5-7
6. Check Input Coupling . ..... ............. . 5-7
7. Check Position Range ..................... 5-8
8. Adjust Attenuator Compensation ......... 5-8
9. Check Vertical ALT and
CHOP Operation .......... . 5-9
10. Adjust CHOP Switch Balance ................... 5-9
11. Check ADD MODE Operation ....................... 5-9
12. Adjust High-Frequency Compensation ---- 5-9
13. Check Bandwidth ............................. 5-10
14. Check Channel Isolation ............................. 5-10
15. Check Common-Mode Rejection Ratio .. 5-10
Horizontal
1. Adjust 1-ms Timing.................................. 5-11
2. Adjust Magnifier Gain ......; ............... 5-11
3. Adjust Magnifier Registration ................... 5-11
4. Check Position Range ...... ...................... 5-12
5. Check Variable Range.............................. 5-12
6. Adjust 0.1-ms and 0.1 -ns Timing ......... 5-12
7. Adjust High-Speed Timing .................... 5-12
8. Check Timing Accuracy and Linearity ... 5-12
9. Adjust X-Y Gain and Offset ................... 5-13
10. Check X Bandwidth ................................. 5-14
11. Check Sweep Holdoff .............................. 5-14
Trigger
1. Adjust trigger Offset . ................................ 5-15
2. Adjust Trigger Sensitivity .................... 5-15
3. Adjust Slope Balance ............................... 5-16
4. Adjust Auto Level .................................... 5-16
5. Check Internal Triggering . ........................ 5-16
6. Check External Trigger Range ......... 5-16
7. Check External Trigger Range .............. 5-17
8. Check Single Sweep Operation ........ 5-17
External Z-Axis and Probe Adjust
1. Check External Z-Axis Operation ............ 5-18
2. Check Probe Adjust Operation................. £>-18
5-3

Tektronix 2205 Specifications

General

Brand	Tektronix
Model	2205
Category	Test Equipment
Language	English