Tektronix WFM 601A, Service Manual, Page: 81 / 368

Performance Verification
WFM 601A, WFM 601E, & WFM 601M Service Manual
4–17
14. Vector Mode Bandwidth Matching
REQUIREMENT – Horizontal-to-Vertical Bandwidth Matching: 2
°
loop
opening at 500 kHz or 2 MHz.
a. Set the serial component generator output to the 60% Multiburst signal:
Modules DVG1
Signal Sets 525–270
Test Signals Frequency Resp
Frequency Resp 60% Multiburst
b. Turn on the serial component generator R–Y signal.
c. CHECK – for 2
°
(less than a trace width) of loop opening.
15. Vector Registration
REQUIREMENT – 0.25 box width with the X1 color black dot centered
in box.
a. To load the factory preset, press the PRESET button, use the bezel knob
to pick the FACTORY setting, then press the RECALL bezel button.
b. 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
c. Select the VECTOR VIDEO DISPLAY.
d. CHECK – that the center dot (the color black dot) is centered in its box
within
1
/
4
of the box width.
e. Enter the GAIN menu and select X1.
f. CHECK – that every dot is within its target box.