Tektronix 2247A

Performance Check Procedure
15. CH 3 to CH 4 Signal Delay Match
a. Set:
Vertical MODE CH 3 and CH 4
(CH 1 off)
Trigger SOURCE CH 2
b.
Move
the
CH
3
signal
to
the
CH
2
Input
and
the
CH
1
trigger
signal
to
the CH 3 Input.
c.
Superlmpose
CH
3
and
CH
4
waveforms
at
the
center
graticule
line.
d.
CHECK—that
the
leading
edges
of
the
two
waveforms
have
less
than
0.1
horizontal
division
separation
at
the
center
graticule
line.
e. Disconnect the test setup.
16. CH 1 and CH 2 Vertical Bandwidth
a. Set:
X10 MAG Off
Vertical
MODE
CH
1
(CH
3
and
CH 4 off)
SEC/DIV 0.1 ms
CH 1 VOLTS/DIV 5S mV
CH 1 and CH 2 Input
COUPLING oc
Trigger
SOURCE
VERT
Horizontal
POSITION
12
o'clock
b.
Connect
leveled
sine-wave
generator
(SG
503)
output
to
the
CH
1
Input
via
a
50
Q
precision
BNC
coaxial
cable
and
a
50
2
BNC
termination,
c.
Set
the
leveled
sine-wave
generator
output
for
a
six-division
signal
amplitude at 50 kHz.
d.
Set
the
generator
Frequency
Range
and
Frequency
Variable
controls
for a 90 MHz output signal.
2247A
Operators
7-21