Tektronix WFM 601A, Service Manual

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Performance Verification
WFM 601A, WFM 601E, & WFM 601M Service Manual
4–7
3. Trace Rotation Range and Graticule Illumination
REQUIREMENT – Rotation of > 1
°
from the horizontal.
a. Set the serial component generator output to the 100% Color Bars signal:
Modules DVG1
Signal Sets 525–270
Test Signals Color Bars
Color Bars 100% Color Bars
b. Enter the CRT menu and select TRACE.
c. Position the trace to the graticule baseline.
d. CHECK – that the TRACE ROTATE control moves the trace > 1
°
from the graticule baseline.
e. Adjust the TRACE ROTATE control for a level trace across the graticule
baseline.
f. From the CRT menu, select DISPLAY.
g. CHECK – that the SCALE control changes the graticule illumination
from completely off to fully illuminated.
h. Adjust the SCALE control for the desired graticule illumination.
i. Exit the CRT menu.
NOTE
. Intensity, readout intensity, and focus are also controlled from the CRT
menu. If they need adjustment during this procedure, select the CRT menu and
adjust as necessary. The levels set will remain after the CLEAR MENU or CRT
menu button is pushed.
4. Horizontal Mag Registration and Position Range
REQUIREMENT – Any portion of the synchronized sweep can be
positioned on-screen in all sweep modes.
a. Set the serial component generator output to the 100% Color Bars signal:
Modules DVG1
Signal Sets 525–270
Test Signals Color Bars
Color Bars 100% Color Bars
b. Horizontally center the display, then press the MAG Line/Sweep button
to turn on horizontal magnification.
c. CHECK – that the center of the trace is displayed with MAG on.