Tektronix T912 - Page 46

Adjustments—
T91
2
h. Compensate
probe
for
best
front
corner of
waveform.
i. Set CH 1 VOLTS/DIV
to 20 mV and set
generatorfora
5-division
display (remove 10X
attenuator if necessary).
j.
ADJUST—C41
13 for flat top on square wave.
d.
Remove
10X
attenuator and set CH
2 VOLTS/DIV
to
.2 V.
Set generator output for
a 5-division display.
e. ADJUST—
C4205
(see Fig. 4-4)
for
best square front
corner (see
Fig.
4-6
for
example). Disconnect
test
equip-
ment.
k. Set
CH
1 VOLTS/DIV to .2 V, and square-wave
generator
output for
a 5-division display (remove 10X
attenuator,
and also 50 Q termination if
necessary)
l.
ADJUST
—04104 for a flat
top on square
wave.
m. Disconnect test
equipment.
f.
Set CH 2
VOLTS/DIV
to 10
mVandXI-XIOtoXI
(fully
ccw).
g.
Connect
a
lOX
probe to the
CH 2
input.
Connect the
probe tip
to a
probe
tip-to-bnc
adapter,
the
adapter
to
a
50
Q bnc
termination, and
the
termination
to a 50 O bnc
10X
attenuator
attached to
the
square-wave
generator
high-amplitude
output
connector.
Set
generator
for a
5-
division,
1 kHz display.
6. CH 2 Attenuator
Compensation
a. Set: CH 2
VOLTS/DIV
CH 2 AC-GND-DC
Vertical
Mode
SEC/DIV
X1-X10
POSITION (all)
20 mV
DC
CH
2
1 ms
X10
(fully
cw)
As required
h.
Compensate
probe
for best
front
corner
of waveform.
i. Set CH 2
VOLTS/DIV
to 20 mV
and
set generatorfora
5-division
display (remove 10X
attenuator if
necessary).
j.
ADJUST
—
C4213
for flat top
on
square wave.
k. Set CH 2
VOLTS/DIV
to .2
V, and
square-wave
b.
ConnectaSOOcablefromthehigh-amplitudeoutput
generator
output for a
5-division display
(remove 10X
of the square-wave
generator,
through a 10X
attenuator,
attenuator,
and also 50 O termination
if
necessary),
and a
50
O
termination
to the
CH 2 input connector.
Set
generator to TkHz
and
adjust for
5-division
display.
l.
ADJUST
—C4204 for
a
flat
top
on
square wave.
c.
ADJUST
—
C4214 (see Fig.
4-4)
for
best square front
corner
(see Fig.
4-6
for
example).
m. Disconnect
test
equipment.
REV. A JUL 1977
4-11