Index To Adjustment Procedure Steps - Tektronix 2205 Service Manual

INDEX TO ADJUSTMENT PROCEDURE
STEPS
Power Supply and CRT Display
1. Check/Adjust Power Supply DC Levels . . . . 5-4
2. Adjust CRT Grid Bias ______. ______
3. Adjust Astigmatism ______. . . . . . . . , . . . . . 5-5
4. Adjust Trace Alignment . . . . . . . . . . r . . . . . 5-5
5. Adjust G eom etry............................................ 5-5
Vertical
1. Adjust Channel 1 Variable Balance . . . . . . . . 5-6
2. Adjust Channel 2 Variable B a lan ce............. 5-6
3. Adjust Channel 2 Invert Balance ................. 5-7
4. Adjust Vertical G ain........................................5-7
5. Check Deflect ion Accuracy and
VOLTS/DIV Variable Range . . . . . . . . . . . . . . 5-7
6. Check Input Coupling . ..... ..............
7. Check Position Range.....................
8. Adjust Attenuator Compensation . . . . . . . . . 5-8
9. Check Vertical ALT and
CHOP Operation ..........
10. Adjust CHOP Switch B a la n ce ...................
11. Check ADD MODE O peration....................... 5-9
12. Adjust High-Frequency C om pensation---- 5-9
13. Check Bandwidth.............................
14. Check Channel Isolation............................. 5-10
Adjustment Procedure-2205 Service
15. Check Common-Mode Rejection Ratio .. 5-10
Horizontal
Page
1. Adjust 1-ms Tim ing.................................. 5-11
2. Adjust Magnifier Gain . . . . . . ; ............... 5-11
3. Adjust Magnifier Registration ................... 5-11
5-4
4. Check Position Range ...... ......................
5. Check Variable Range.............................. 5-12
6. Adjust 0.1-m s and 0.1 -ns T im ing ......... 5-12
7. Adjust High-Speed Timing ....................
8. Check Timing Accuracy and Linearity . . .
9. Adjust X-Y Gain and Offset ................... 5-13
10. Check X Bandwidth.................................
11. Check Sweep Holdoff .............................. 5-14
Trigger
trigger Offset ................................. 5-15
1. Adjust
2. Adjust Trigger Sensitivity....................
3. Adjust Slope Balance ............................... 5-16
5-7
4. Adjust Auto Level ....................................
5-8
5. Check Internal Triggering ......................... 5-16
6. Check External Trigger Range . . . . . . . . . 5-16
7. Check External Trigger Range ..............
. 5-9
8. Check Single Sweep Operation . . . . . . . .
5-9
External Z-Axis and Probe Adjust
5-10
1. Check External Z-Axis O peration............
2. Check Probe Adjust O peration................. £>-18
5-12
5-12
5-12
5-14
5-15
5-16
5-17
5-17
5-18
5-3