Tektronix 2230 Service Manual

Adjustment Procedure— 2230 Service
m. Set the generator to produce a 5-division display.
n. Set the top of the display to the center horizontal
graticule line using the Channel 2 POSITION control.
c. Use the Menu controls to call up SELECT MODE
Table on the screen and select AVERAGE with the
SELECT C1/C2 button. Reset the WAVEFORM
REFERENCE/MENU SELECT switch to WAVEFORM
REFERENCE (button out).
o. ADJUST—Ch 2 HF Comp (Cl 80) for 2% overshoot
(0.1 division) on the displayed signal.
d. Set the generator to produce a 5-division display.
p. Set the CH 2 VOLTS/DIV switch to 5 mV.
q. Repeat parts i through k for Channel 2.
e. Set the top of the display to the center horizontal
graticule line using the Channel 1 POSITION control.
20. Adjust 2-mV Peaking Compensation
(C76 and C26)
f. ADJUST—Ch 1 Acq HF Peak (C2103) and Acq HF
Peak (R2149) for best front corner.
a. Set both VOLTS/DIV switches to 2 mV.
g. Set the SAVE/CONTINUE switch to SAVE (button
in).
b. Set the generator to produce a 5-division display.
c. Set the top of the display to the center horizontal
graticule line using the Channel 2 POSITION control.
h. CHECK—Display aberrations are within 4% (0.2
division or less).
d. ADJUST—2mV Peak (C76) for 2% overshoot of the
displayed signal.
i. Move the cable from the CH 1 OR X input connector
to the CH 2 OR Y input connector. Set the VERTICAL
MODE switch to CH 2.
e. Move the cable from the CH 2 OR Y input connector
to the CH 1 OR X input connector. Set the VERTICAL
MODE switch to CH 1.
j. Set the SAVE/CONTINUE switch to CONTINUE (but
ton out).
f. ADJUST—2mV Peak (C26) for 2% overshoot of the
displayed signal.
k. Repeat part e using Channel 2 POSITION control.
1. ADJUST—Ch 2 Acq HF Peak (C2113) for best front
corner.
21. Adjust Acquisition High Frequency Peaking
(C2103, R2149, and C2113)
a. Set:
m. Repeat parts g and h for Channel 2.
VOLTS/DIV (both) 10 mV
STORE/NON STORE STORE (button in)
SAVE/CONTINUE CONTINUE (button out)
PRETRIG/POST TRIG POST TRIG (button out)
n. INTERACTION—It may be necessary to compro
mise the Ch 1 Acq HF Peak (C2103) and Acq HF Peak
(R2149) adjustments in part f and the Ch 2 Acq HF peak
(C2113) adjustment in parti, to obtain the best high-
frequency match between Channel 1 and Channel 2.
b. Set the WAVEFORM REFERENCE/MENU SELECT
switch to MENU SELECT (button out).
o. Disconnect the test equipment from the instrument.
5-14

Tektronix 2230 Specifications

General

Brand	Tektronix
Model	2230
Category	Test Equipment
Language	English