Tektronix 070-8462-03, Instruction Manual

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1735 HD High Definition Waveform Monitor
6–1
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. The Short Form Adjustment Procedure is provided for those familiar
with the adjustments, while the Standard Adjustment Procedure is provided for
those who need more detailed instructions. Both forms of the adjustment
procedure use the same step numbers, so the short form can be used as an index
to the standard form.
Allow 20 minutes of warm-up time, at normal room temperature (approximately
25
_
C), before making any adjustments to the instrument.
Short-Form Procedure
Components to be adjusted are listed in the title of each step. See Figures 6–1
and 6–2 for their locations.
1. 5 Volts Supply (A1R70).
2. Check Power Supplies.
3. Adjust Plate Average (A3R108).
4. Adjust CRT Bias (A1R52).
5. Adjust Trace Rotation (front panel).
6. Adjust Center Focus, Astigmatism, and Geometry (A1R10, A1R38, A1R43).
7. Adjust Horizontal Sync Timing (A4R93).
8. Adjust Blanking Width (A4R39).
9. Adjust Clamp Pulse Start and Width (A4R99, A4R104).
10. Adjust Return Loss (A3C257, A3C258, A3C259, A3C260, A3C261,
A3C262).
11. Adjust Low-Frequency Input Compensation (A3R447–A3C139,
A3R432–A3C126, A3R459–A3C119, A3R440–A3C103, A3R466–A3C135,
A3R468–A3C137).
12. Adjust DC Coupled Position (A3R330, A3R304, A3R308, A3R277,
A3R315, A3R326).
13. Adjust Clamped Position (A3R313, A3R354, A3R372, A3R358, A3R348,
A3R349).