1730–Series Checks and Adjustments
5–27
Adjustment Procedure
The Adjustment Procedure covers only adjustments. Checks, other than those
that must be made to ensure a step is completed, are in the Performance Check
Procedure. There are actually two Adjustment Procedures, the short–form
version is provided for those familiar with the adjustments, while the longer
(more detailed) procedure is provided for those who need it.Allow 20 minutes of
warm–up time, at normal room temperature (approximately 25° C), before
making any adjustments to the instrument.
Short–form Procedure
The Short–Form Adjustment Procedure has the adjustment steps in the same
order as the longer form of the procedure. Adjustment circuit numbers are also
included with the step title. Note also that the Short-Form Procedure can be used
as an index for the long–form.
1. Adjust +5 V (R99)
2. Adjust CRT Bias (R58)
3. Adjust Geometry (R45), Focus (R11) and Astigmatism (R49)
4. Adjust Trace Rotation
5. Adjust On–Board Regulated Supplies (R167 and R168)
6. Adjust 2Line and 1 ms Sweep Calibration (R660 and R552)
7. Adjust 0.2 ms Sweep Calibration (R553)
8. Adjust Dual Filter Switching Phase (R636)
9. Adjust Magnifier Registration (R661)
10. Adjust RGB Offset (R856)
11. Adjust RGB Compensation (C953)
12. Adjust Output Bias (R489)
13. Adjust Calibration Signal Amplitude (R689)
14. Adjust Dual Input dc Level (R492)
15. Adjust X5 Magnifier Registration (R274)
16. Adjust Channel–A Input Compensation (C195) and Flat Response (L180 and
L190)