Tektronix T921 User Manual

Adjustments-T921
/T922/T922R
Equipment Required
1 . Digital Voltmeter
2 .
Time-Mark Generator
3 . 50 S2 BNC Cable
1 . Set the
Front Panel Controlsas Follows :
4-4
For
adjustment of the T921, use the
channel 1
control settings and
procedures .
INTENSITY
Vertical Mode
CH 1 VOLTS/DIV 2 1 V
VOLTS/DIV VAR
(both) detent
NOTE
Do not preset
internal controls .
NOTE
midrange
CH 1
A . DISPLAY AND POWER
SUPPLY
Set all
other controls as desired . The oscilloscope
should produce
a baseline trace with the controls set as
above . Adjust the INTENSITY
and FOCUS controls (on
'Unless otherwise stated,
use
the
1X probe window for
VOLTS/DIV settings throughout this procedure
.
4 . 50 0 Termination
5 . Screwdriver
6 . Low-Capacitance Screwdriver
front
panel), and ASTIG control (left side of cabinet) as
needed to maintain
a well-defined display .
2 . -8 V Power Supply
dc .
NOTE
Do not change the
setting of the -8 V adjustment
unless you intend to re-adjust the entire
instrument .
a . Connect digital voltmeter between the -8 V side
of
R775
and ground (see Fig . 4-2) . If meter does not read
between -7 .96 V and
-8 .04 V, proceed to part b .
b . ADJUST-R773, -8 V Adj (see Fig . 4-2) for-8 .00 V
c . Disconnect digital
voltmeter .
Fig . 4-2 .
Power supply adjustment location (bottom of T921 and
T922) .
REV . B APR 1977
AC-GND-DC (both)
GND
SEC/DIV
.1 ms
X1-X10 X1 (fully ccw)
SOURCE INT
MODE
AUTO
SLOPE +OUT
LEVEL
midrange
CH 1 POSITION
midrange
Horizontal POSITION midrange

Tektronix T921 Specifications

General

Brand	Tektronix
Model	T921
Category	Test Equipment
Language	English