Calibration Procedure; Introduction; Index To Calibration Procedure - Tektronix 7B92 Instruction Manual

Calibration-7B92 Service
CALIBRATION PROCEDURE
7B92 Serial No.
Calibration Date _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Calibrated By _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Introduction
The following procedure returns the 7B92 to correct
calibration. All limits and tolerances given in this procedure
are calibration guides, and should not be interpreted as
instrument specifications except when listed as a perform·
ance requirement in the Specification section in the
Operators Manual.
Index to Calibration Procedure
Trigger System Calibration
1. Preliminary Trigger Adjustments (R740,
R750, R940, R950, and R364)
2. Check/Adjust Main Trigger Level Sensi·
tivity (R730)
3. Check/Adjust Main Trigger Internal and
External DC Centering (R647, R602)
4. Check/Adjust Delayed Trigger Sensi·
tivity (R920)
5. Check/Adjust Delayed Triggering Inter-
nal and External DC Centering (R802)
6. Check Main and Delayed Low-
Frequency Triggering Operation
7. Check Delayed and Main Triggering
External Level Range
8. Check Main Triggering AC LF REJ
Operation
9. Check Line Triggering Operation
10. Check AUTO, NORM, and SINGLE
SWEEP Modes
11. Check/Adjust Main Triggering TO Bias
and Runs After Sensitivity (R740,
R750, and R959)
12. Check Adjust Delayed Triggering TO
Bias (R940, R950)
13. Check HF SYNC Operation
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14. Check Main and Delayed Trigger Jitter
15. Check 20 Megahertz Triggering
Horizontal System Calibration
16. Check/Adjust Delayed Sweep Baseline
(R452)
17. Check/Adjust SWP CAL (Front panel)
18. Check Display Modes
19. Check/Adjust Delay Start and Delay
Stop
(R40~,
R350)
20. Check/Adjust Position and Sweep Regis-
tration (R516, R560)
21. Check/Adjust Delaying Sweep Calibra-
tion (R511)
22. Check/Adjust Position Centering
(R523)
23. Check/Adjust Delaying and Delayed
Sweep Length (R340, R465)
24. Check/Adjust Delayed Sweep 20 Nano-
second Timing (C449)
25. Check/Adjust One-Microsecond Timing
(C414, C443)
26. Check/Adjust Delay Pickoff TO Bias
(R364)
27. Check/Adjust High-Frequency Linearity
(C557, C565, C572)
28. Check/Adjust High-Frequency Timing
(R244, R246, R567t
29. Check Delaying and Delayed Sweep
Timing Accuracy
30. Check Delaying and Delayed Sweep
Linearity
31. Check Delaying and Delayed Sweep
Variable Control Range
32. Check Differential Delay Time Accu-
racy
33. Check Absolute Delay Time Accuracy
34. Check Delay Time Jitter
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