Tektronix 2230 Service Manual

Adjustment Procedure— 2230 Service
b. Connect the standard-amplitude signal from the
Calibration Generator via a 50 Q cable to the CH 1 OR X
input connector.
b. Connect the leveled sine-wave generator output via
a 50 f] cable and a 50 £) termination to the CH 1 OR X
input connector.
c. Use the Channel 2 POSITION and Horizontal POSI
TION controls to center the display.
c. Set the generator to produce a 5-division horizontal
display at an output frequency of 50 kHz.
d. Set the generator to produce a 50 mV signal.
d. Increase the generator output frequency to 2.5 MHz.
e. ADJUST—X-Gain (R760) for exactly 5 divisions of
horizontal deflection.
e. CHECK—Display is at least 3.5 horizontal divisions.
f. Disconnect the test equipment from the instrument.
f. Disconnect the test equipment from the instrument.
21. Check X-Y Store
a. Set the STORE/NON STORE switch to STORE
(button in).
23. Check A-Sweep Holdoff
a. Set:
b. Set the generator to produce a 50 mV signal.
X-Y Off (button out)
HORIZONTAL MODE A
A SEC/DIV 1 ms
VAR HOLDOFF NORM
c. CHECK—The display can be move vertically and
horizontally with the Channel 2 POSITION and Horizontal
POSITION controls.
b. Connect the test oscilloscope and its 10X probe tip
to the front end of R707 (toward the front panel) which is
located on the Timing circuit board.
d. Set the SAVE/CONTINUE switch to SAVE (button
in).
c. CHECK—The A-Sweep holdoff is greater then 3 ms
but less than 7 ms.
e. Repeat part c.
f. Disconnect the test equipment from the instrument.
d. Rotate the VAR HOLDOFF control to the maximum
clockwise position (MAX).
22. Check X Bandwidth
a. Set:
e. CHECK—The A-Sweep holdoff has increased by a
factor of 10 or more.
CH 2 AC-GND-DC GND
STORE/NON STORE NON STORE (button out)
f. Disconnect the test oscilloscope 10X probe from
R707.
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Tektronix 2230 Specifications

General

Brand	Tektronix
Model	2230
Category	Test Equipment
Language	English