Tektronix 2230 Service Manual

Performance Check Procedure—2230 Service
j. Press in the C1/C2 button to activate the second
cursor.
k. Set the second cursor on the trailing edge of the
10th time marker at the same voltage level as on the 2nd
time marker.
l. CHECK—The AT readout is between 0.798 ms and
0.802 ms.
m. Set the SAVE/CONTINUE switch to CONTINUE
(button out).
n. Set the A SEC/DIV switch to 0.5 ms.
o. Select 0.5 ms time markers from the time-mark
generator.
p. Align the 2nd time marker with the 2nd vertical grati
cule line using the Horizontal POSITION control.
NOTE
Allow the points to accumulate for a few seconds
before saving the display.
q. Repeat parts h through k.
NOTE
Pulses with fast rise and fall times have only a few
sample points and it may not be possible to place
the cursors at exactly the same voltage levels.
d. Set:
Channel 1 AC-GND-DC GND
SEC/DIV Variable CAL detent
HORIZONTAL MODE BOTH
e. Use the Channel 1 POSITION control to set the A
Sweep at the center horizontal graticule line.
f. CHECK~The B Sweep can be positioned more than
3.5 divisions above and below the A Sweep when the A/B
SWP SEP control is rotated fully clockwise and counter
clockwise respectively.
4. Check Delay Time Differential Accuracy
a. Use the Horizontal POSITION control to align the
start of the A Sweep with the 1 st vertical graticule line.
b. Set the B DELAY TIME POSITION control fully
counterclockwise.
c. CHECK—Intensified portion of the trace starts
within 0.5 division of the start.of the sweep.
d. Rotate the B DELAY TIME POSITION control fully
clockwise.
e. CHECK—Intensified portion of the trace is past the
11th vertical graticule line.
f. Set the A and B SEC/DIV switch to 0.5 ms.
r. CHECK—The AT readout is between 3.948 ms and g. Repeat parts a through e.
4.052 its.
3. Check Variable Range and Sweep Separation
a. Set:
A and B SEC/DIV 0.2 ms
SEC/DIV Variable Fully counterclockwise
STORE/NON STORE NON STORE (button out)
h. Set:
Channel 1 AC-GND-DC DC
B SEC/DIV 0.05 ms
B DELAY TIME POSITION Fully counterclockwise
I. Select 0.5 ms time markers from the time-mark
generator.
b. Select 0.5 ms time markers from the time-mark
generator.
c. CHECK—Time markers are 1 division or less apart.
J. Rotate the B DELAY TIME POSITION control so
that the top of the 2nd time marker on the B Sweep is
aligned with a selected reference vertical line. Record the |
DLY> readout for part I.
4-14
REV DEC 1986

Tektronix 2230 Specifications

General

Brand	Tektronix
Model	2230
Category	Test Equipment
Language	English