Tektronix 2230 Service Manual

Adjustment Procedure— 2230 Service
h. Move the cable from the CH 1 OR X input connector
to the CH 2 OR Y input connector.
7. Check External Trigger Ranges
a. Set:
i. Repeat part f.
j. Disconnect the test equipment from the instrument.
CH 1 VOLTS/DIV
A SEC/DIV
XI0 Magnifier
A TRIGGER SLOPE
A TRIGGER Mode
0.5 V
20 /is
Off (knob in)
OUT
NORM
6. Check External Triggering
a. Set:
VERTICAL MODE
CH 1 VOLTS/DIV
HORIZONTAL MODE
A SEC/DIV
X I0 Magnifier
HF REJECT
A&B INT
A SOURCE
CH 1
5 mV
A
0.1 ms
Off (knob in)
OFF
CH 1
EXT
b. Set the generator to produce a 50 kHz, 6.4-division
display.
c. CHECK—Display is triggered along the entire posi
tive slope of the waveform as the A TRIGGER LEVEL
control is rotated.
d. CHECK—Display is not triggered (no trace) at either
extreme of rotation.
b. Connect the leveled sine-wave generator output via
a 50 0 cable, a 50 n termination, and a dual-input coupler
to both the CH 1 OR X and EXT INPUT connectors.
e. Set the A TRIGGER SLOPE button to IN.
f. CHECK—Display is triggered along the entire nega
tive slope of the waveform as the A TRIGGER LEVEL
control is rotated.
c. Set the leveled sine-wave generator output voltage
to 35 mV and the frequency to 10 MHz.
g. CHECK—Display is not triggered (no trace) at either
extreme of rotation.
d. CHECK—Stable display can be obtained by adjust
ing the A TRIGGER LEVEL control for each switch combi
nation given in Table 5-9.
e. Set CH 1 VOLTS/DIV switch to 50 mV.
f. Set the generator output voltage to 120 mV and the
frequency to 60 MHz. Set the X I0 Magnifier to On (knob
out).
g. Repeat part d.
h. Set the generator output voltage to 150 mV and the
frequency to 100 MHz.
i. Repeat part d.
8. Check Single Sweep Operation
a. Adjust the A TRIGGER LEVEL control to obtain a
stable display.
b. Set:
Channel 1 AC-GND-DC GND
A SOURCE INT
c. Press in the SGL SWP button. The READY LED
should illuminate and remain on.
d. Set the Channel 1 AC-GND-DC switch to DC.
NOTE
The A INTENSITY control may require adjustment to
observe the single-sweep trace.
5-30

Tektronix 2230 Specifications

General

Brand	Tektronix
Model	2230
Category	Test Equipment
Language	English