Tektronix 2230 Service Manual

Adjustment Procedure—2230 Service
e. CHECK—READY LED goes out and a single sweep
occurs.
f. Press in the SGL SWP button several times.
g. CHECK—Single-sweep trace occurs, and the
READY LED illuminates briefly every time the SGL SWP
button is pressed in and released.
h. Disconnect the test equipment from the instrument.
9. Check Acquisition Window Trigger Point
a. Set:
A TRIGGER Mode P-P AUTO
1K/4K 4 K (button out)
PRETRIG/POST TRIG POST TRIG (button out)
WAVEFORM REFERENCE/ MENU SELECT
MENU SELECT (button out)
b. Use the Menu controls to select A TRIG POS.
c. CHECK—The A TRIG POS default number is 512.
d. Press in momentarily the PRETRIG/POST TRIG
switch to activate the trigger point display on the crt.
Return the PRETRIG/POST TRIG switch to POST TRIG
(button out).
e. CHECK—The trigger point (T) appears near the 2nd
vertical graticule line below the Menu.
f. Set the PRETRIG/POST TRIG switch to PRETRIG
(button in).
g. CHECK—The A TRIG POS default number is 3584
and the trigger point (T) appears near the 9th vertical grat
icule line below the Menu.
h. Set the 1K/4K switch to IK (button in).
i. CHECK—The A TRIG POS default number is 896
and the trigger point (T) appears near the 9th vertical grat
icule line below the Menu.
j. Set the PRETRIG/POST TRIG switch to POST TRIG
(button out).
k. CHECK—The A TRIG POS default number is 128
and the trigger point (T) appears near the 2nd vertical
graticule line below the Menu.
I. CHECK—The trigger point (T) can be moved
between the 1st and the center vertical graticule lines as
the CURSORS control is rotated.
m. Set the PRETRIG/POST TRIG switch to PRETRIG
(button in).
n. CHECK—The trigger point (T) can be moved
between the 10th and the center vertical graticule lines as
the CURSORS control is rotated.
o. Set the 1K/4K switch to 4K (button out).
p. Repeat part n for PRETRIG mode and part I for
POST TRIG mode.
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Tektronix 2230 Specifications

General

Brand	Tektronix
Model	2230
Category	Test Equipment
Language	English