Tektronix 070-8462-03, Instruction Manual

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Operating Basics
2–16
1735 HD High Definition Waveform Monitor
Table 2–4: Initial settings for adjustment procedure (Cont.)
Front-Panel Control Setting
FLAT – FILTER FLAT
HORIZONTAL
ONE – TWO – THREE ONE
LINE – FIELD LINE
MAG – READOUT off
LINE SELECT off
MENU off
MENU SETTINGS OFFSETS DISABLED
FOCUS as desired
SCALE as desired
INTENS as desired
5. Obtain Display
a. Adjust the INTENS and FOCUS controls for the desired brightness and
a well-defined display.
b. Adjust the multi-turn VERTICAL POSITION control to place the
display blanking level on the graticule 300 mV line.
c. Center the display with the HORIZONTAL Position control. Figure 2–8
shows a two-line display; the SMPTE format color bar display will vary
somewhat from the illustration.
d. Adjust the SCALE illumination control for the desired graticule scale
brightness.
6. Check the Rotation of the Display
NOTE
. Variations in the earth’s magnetic field may make adjustment of the
TRACE ROTATION control necessary when the instrument is first installed and
when it is moved.
Check that the display blanking level is parallel to the horizontal axis. If
it is not, adjust the TRACE ROTATION screwdriver adjustment until
the sweep is parallel to the horizontal axis.