Tektronix T912 - Display

Performance
Check—T912
PERFORMANCE
CHECK PROCEDURE
1. CH 1 and CH 2 Deflection Accuracy
a. Connect test equipment as shown in Fig.
3-1
(use
appropriate POSITiON controi as needed
to
center the
display within the graticule area).
b. CHECK—Deflection
accuracy
for CH
1 according to
Table
3-2
within
3% (+20° C
to +30°
C).
C.
Set: CH 1
AC-GND-DC
GND
CH
2 AC-GND-DC
DC
Vertical Mode
CH 2
CH
2 POSITION
As needed
d.
CHECK—Deflection
accuracy
for CH 2
according
to
Table
3-2 within
3%
(+20° C to
+30°
C).
Table
3-2
Set
amplitude calibrator to
0.1 voit.
DEFLECTION
ACCURACY
VOLTS/DIV
(1X PROBE
WINDOW)
Amplitude
Calibrator
Output
Vertical
Deflection
(divisions)
±3%
2. CH
1 and
CH
2 VAR
(Variable)
Volts/Div
Range
Tolerance
^
^
2 VOLTS/DIV to 20
mV.
(divisions)
2
mV
10
mV
5 4.85 to
5.15
CHECK—
Display
amplitude reduces
from five
5 mV
20 mV
4
T QQ /I n
divisions to less
than
two divisions with CH 2
VAR control
0.00 to 1
^
.
...
turned
fully
counterclockwise.
10
mV
50 mV 5
4.85 to 5.15
20
mV
.1 V 5
4.85 to
5.15
Qg^.
V0 rtica|
Mode CH 1
.2
V 1 V
5 4.85 to
5.15
CH 1
AC-GND-DC
DC
2
V 10 V
5 4.85 to
5.15
CH
2 AC-GND-DC
GND
OSCILLOSCOPE
1982-02
Fig.
3-1.
Deflection
accuracy
check
test
setup.
REV.
A APR 1977
3-3