Fluke 93 Service Manual page 79

4
•
10
PERFORMANCE
VERJFJCATION
PROCEDURE
19.
Trigger
sensitivity
externai channei
This
test
checks
the
trigger sensitivity,
using
the
©jcternal
banana
connectors as
the
trigger
input.
Test
equipment:
Phiiips
PM
5134
Fur>clion Generator
Test setup:
Procedure/requ
iremants:
A
Apply
a
1
kHz
sine
wave
signal, that
has an
amplitude
of
1
.2
V
peak-to-peak, superimposed on
1
.4V
DC
to
channei
A
and
to
the
banana
input sockets.
U&e a
coaxial signal
spiitter
and
a
BNC*
tO'banana
converter (see
test setup).
Use
50Q
terminations.
G
Verify that the signal
is
well triggered.
CTirn
Figure 4.7
1.2V peak-to-peak
sine
wa
ve
superimposed on 1.4V
DC
20. Horizontai
deflection: x-deflection
TNs
test
checks
the correct working
of
the
X-Y
(A versus
B)
mode.
Test equipment:
Philips
PM
5134
Function Generator