TB 9-6625-2024-35
(2) Adjust R513 (R525 for Tektronix 7603) (fig. 1) to midrange and adjust R531
(R535 for Tektronix 7603) (fig. 1) until vertical trace is aligned on center horizontal
graticule line (R).
(3) Repeat a(2), (4), and (5) for best compromise.
12. Timing and Linearity
a. Performance Check
(1) Install calibration adapter in left vertical compartment.
(2) Install dual time base in horizontal (right) compartment.
(3) Set calibration adapter TEST switch to VERT OR HORIZ AUX IN.
(4) Connect oscilloscope calibrator SOURCE/MEASURE CHAN 1 to calibration
adapter AUX IN input.
(5) Set oscilloscope calibrator MARKER output for 1 ms.
(6) Set dual time base TIME/DIV OR DLY TIME switches to 1 ms.
(7) Adjust dual time base POSITION control until second marker is aligned with
second vertical graticule line. Rotate oscilloscope calibrator knob located below EDIT
calibrator err display readout does not indicate within 3% when using TD-1085/U or
2% when using Tektronix 7B53A, 7B35AN, or TD-1159/U, adjust oscilloscope calibrator
for 0 percent on err display and adjust SWP CAL control (front panel) for 1 marker per
division.
(8) Set oscilloscope calibrator MARKER output to 10 ns .
(9) Set dual time base TIME/DIV OR DLY TIME switches to .1 s.
(10) Adjust calibration adapter POSITION and AMPLITUDE controls to center
display on TI crt horizontal graticule centerline.
(11)
Press and release dual time base MAG pushbutton to X10 (OUT) position.
(12) Adjust dual time base POSITION control to align the nearest marker on second
vertical graticule line. Rotate oscilloscope calibrator knob located below EDIT FIELD
calibrator err display readout does not indicate within 5% when using TD-1085/U or
3.5% when using Tektronix 7B53A, 7B55-AN, or TD-1159/U, perform b(1) and (2) below.
NOTE
Perform (13) through (14) below for Tektronix 7603.
(13) Set dual time base TIME/DIV OR DLY TIME switches to .05 s.
(14) Adjust dual time base POSITION control to align the nearest marker on
second vertical graticule line. Rotate oscilloscope calibrator knob located below EDIT
FIELD pushbutton to align one marker per two divisions. If oscilloscope calibrator err
display readout does not indicate within 3.5%, perform b(3) and (4) below.
