Tektronix 2445A - Page 130

c. Use the ~ REF OR DL Y POS control to position one
cursor 3 divisions above graticule center. Use the
~ con-
trol to position the other cursor 3 divisions below graticule
center.
d. Connect a 1-kHz, fast-rise signal from the Calibration
Generator to the
CH 1 OR X input connector via a 50-0
BNC cable.
e. Set the generator output level for an 8-division
display.
Adjustment Procedure-2445A/2455A Service
f. Use the CH 1 Vertical and Horizontal POSITION con-
trols to center the
CH 1 display on the graticule.
g. ADJUST-Vertical Readout Jitter (R618) for
minimum vertical jitter of the readout characters
and
cursors.
h. Disconnect the test setup.
5-9