Tektronix 2247A

Performance Check Procedure
DISPLAY
Equipment Required (See Table 7-1)
Time-mark generator
50 1 BNC termination
50 © BNC coaxial cable
1. TRACE ROTATION
a. Set:
READOUT (Intensity)
A INTEN
For a viewable readout
For a viewable trace
Vertical MODE CH 1
CH 1 VOLTS/DIV 0.1V
CH 1 COUPLING AC
A/B SELECT A Trigger
Trigger
MODE AUTO LEVEL
Trigger SOURCE VERT
Trigger CPLG DC
Trigger SLOPE _/~ (positive-going)
Trigger HOLDOFF Min
Trigger LEVEL. 12 o'clock
Horizontal MODE A
Horizontal POSITION 12 o'clock
A SEC/DIV 2ys
Measurements All off (press CLEAR
DISPLAY three times)
FOCUS For best defined display
SCOPE BW Off
b. Position trace vertically to the center graticule line.
c. CHECK—trace rotation control range is adequate to align trace with
center graticule line using a small straight-bladed alignment tool.
d. ADJUST—trace parallel to center horizontal graticule line.
7-8
2247A Operators
Se
4
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a