Tektronix 2215A User Manual

Adjustment Procedure—2215A Service
d. ADJUST— Delay Start (R646) so that the 2nd A- A SEC/DIV 0.05 ms
Sweep time marker is intensified and the B-Sweep time X I0 Magnifier On (knob out)
marker's rising edge starts at the beginning of the B Sweep.
b. Select 10-ns time markers from the time-mark
e. Set the B DELAY TIME POSITION dial to 9.00. generator.
f. ADJUST— Delay End (R652) so that the 10th A-
Sweep time marker is intensified and the B-Sweep time
marker's rising edge starts at the beginning of the B Sweep.
g. Set the B DELAY TIME POSITION dial to 1.00.
h. Repeat parts d through g until no further improvement
is noted.
7. Adjust High-Speed Timing (C703 and C713)
a. Set:
HORIZONTAL MODE A
A SEC/DIV 0.1 mS
c. Align the time markers with the vertical graticule lines
using the Horizontal POSITION control.
d. ADJUST—5-ns Timing (C775) for one time marker
every 2 divisions over the center 8 divisions of the magnified
sweep.
e. CHECK—Time markers between the 2nd and 4th ver
tical graticule lines should be aligned within 0.14 division. If
not, a slight compromise between timing and linearity
should be made by readjusting the 5-ns Timing capacitor
(C775).
b. Select 0.1-ms time markers from the time-mark
generator.
c. ADJUST—A High Speed Timing (C703) for 1 time
marker per division over the center 8 divisions.
d. Set:
HORIZONTAL MODE B
A SEC/DIV 0.2 ms
B SEC/DIV 0.1 ms
e. ADJUST— B High Speed Timing (C713) for 1 time
marker per division over the center 8 divisions.
8. Adjust 5-ns Timing and Linearity (C775)
a. Set:
CH 1 VOLTS/DIV 0.2 V
HORIZONTAL MODE A
9. Check Timing Accuracy and Linearity
a. Set:
CH 1 VOLTS/DIV
X I0 Magnifier
A TRIGGER Mode
0.5 V
Off (knob in)
NORM
b. Select 50-ns time markers from the time-mark
generator.
c. Adjust the A TRIGGER LEVEL control for a stable,
triggered display.
d. Use the Horizontal POSITION control to align the sec
ond time marker with the second vertical graticule line.
e. CHECK—Timing accuracy is within 3% (0.24 division
at the 10th vertical graticule line), and linearity is within 7%
(0.14 division over any 2 of the center 8 divisions).
5-15

Tektronix 2215A Specifications

General

Brand	Tektronix
Model	2215A
Category	Test Equipment
Language	English