Tektronix T921 User Manual

f .
CHECK-No vertical deflection .

c . CHECK-Horizontal deflection is between 3 .5 and
6 .5 divisions (set horizontal POSITION as needed to view
g . Set Vertical Mode to CH 2 .

start andend of display) .
h . CHECK-Display amplitude is 4 .85 to 5 .15
divisions
.
i . Set CH
2
FRONT-REAR to FRONT .
j . CHECK-No vertical deflection .
4 . Rear EXT TRIG or X Input (T922R)
a . Disconnect BNC cable from dual input coupler and
connect it to rear-panel EXT TRIG orX input (see Fig . 3-2) .
b . Set :

EXT TRIG or
X FRONT-REAR

REAR
Trigger SOURCE

X-Y
c
.
Set Amplitude calibrator Amplitude to 5 volts .
d . CHECK-Display is two dots separated horizontally
by
about
5
divisions
.
Do notallowa bright spot to remain stationary on the
crt . This can burn the crt phosphor .

7 . CH 2Bandwidth (T922 and T922R Only)
e . Set EXT TRIG or
X
FRONT-REAR to
FRONT .
f . CHECK-No horizontal deflection .
g . Disconnect test equipment .
5 .
X Gain
a . Set :

CH 1 AC-GND-DC

GND
REV . B, DEC . 1976
SOURCE X-Y
Performance
Check-T921/T922/T922R
d . Disconnect test equipment .
e . Set SOURCE to
INT .
6 .
CH
1
Bandwidth
a . Connect
test
equipment
as shown in Fig . 3-3 .
c . Set generator frequency to 50 kHz (reference) and
adjust output amplitude for 5 division display .
d . Set generator frequency
to 15 MHz .
e .
CHECK-Display amplitude is at least 3 .5 divisions .
a . Set :

Vertical Mode

CH 2
b . Move the sine-wave generator output (through 50 0
cable and 50 i2 termination) from CH 1 input connectorto
CH 2 input connector .
C . Set generator frequency to 50 kHz (reference) and
adjust output amplitude for 5 division display .
d . Set generator frequency to 15 MHz .
INTENSITY

Foradim
display

e . CHECK-Display amplitude is at least 3 .5 divisions .
'

b . Connect test equipment as shown in Fig . 3-1 and set

f .

Disconnect
generator from CH 2 input connector
calibration generator output amplitude to 5 V .

and reduce INTENSITY setting for a dim display .
3- 5
b . Set : VOLTS/DIV (both) 2 mV
AC-GND-DC (both) DC
LEVEL Fully cw

Tektronix T921 Specifications

General

Brand	Tektronix
Model	T921
Category	Test Equipment
Language	English