Tektronix 2205 Service Manual

Performance Check Procedure—2205 Service
2. Check External Triggering d. Set:
Trigger MODE NORM
Trigger SOURCE EXT, EXT
CH 1 VOLTS/DIV
20 mV
SEC/DIV 0.2 ms
Horizontal MODE
XI
Trigger MODE P-P AUTO
Trigger SOURCE
EXT, EXT
Connect the leveled sine-
-wave generator out-
put via a 50-fi coaxial cable, a 50-fl termination,
and a dual-input coupler to the CH 1 OR X input con
nector and EXT INPUT OR Z input connectors.
c. Set the generator to produce a 4-division
(80 mV) horizontal display at an output frequency of
5 MHz.
d. CHECK—Stable display can be obtained by
adjusting the Trigger LEVEL control for each switch
combination given in Table 4-4.
e. CHECK—Display is triggered along the entire
positive slope of the waveform as the Trigger LEVEL
control is rotated.
f. CHECK—Display is not triggered at either
extreme of rotation of the Trigger LEVEL control.
g. Set the Trigger SLOPE switch to negative
O -).
h. CHECK—Display is triggered along the entire
negative slope of the waveform as the Trigger
LEVEL control is rotated.
i. CHECK—Display is not triggered at either
extreme of rotation of the Trigger LEVEL control.
j. Disconnect the test equipment from the
instrument.
e. Set:.. ................
CH 1 VOLT/DIV 50 mV
SEC/DIV 0.05 ms
Horizontal MODE MAG
f. Set the generator to produce a 3-division
(150 mV) horizontal display at an output frequency
of 30 MHz.
4. Check Single Sweep Operation
a. Set:
CH 1 VOLTS/DIV 10 mV
SEC/DIV
0.5 ms
Trigger SOURCE
CH 1
Trigger SLOPE Positive
i-r )
g. Repeat part d.
h. Disconnect the test equipment from the
instrument.
3. Check External Trigger Range
b. Connect 50-mV, standard-amplitude signal
from the calibration generator via a 50-n coaxial
cable to the CH 1 or X input connector.
c. Adjust the Trigger LEVEL control to obtain a
stable display.
d. Set:
a. Set:
0.5 V
20 ms
Positive
(-O
b. Set the leveled sine-wave generator to
produce a 50-kHz, 6.4-division display.
c. Position the waveform equally about the
center horizontal graticule line.
Channel 1 AC-GND-DC GND
Trigger MODE SGL SWP
e. Press the SGL SWP RESET button. The
TRIG'D/READY LED illuminates and remains on.
f. Set the Channel 1 AC-GND-DC switch to DC.
NOTE
The INTENSITY control may require adjust
ment to observe the single-sweep trace.
CH 1 VOLTS/DIV
SEC/DIV
Trigger SLOPE
4-H )

Tektronix 2205 Specifications

General

Brand	Tektronix
Model	2205
Category	Test Equipment
Language	English