Fluke 93 Service Manual page 87

4-18
PERFORMANCE
VERIFICATION
PROCEDURE
Settings/procodure/requ Irements:
A
Apply a 50
MHz
$lne
wave
signal of
1
00
mV
peak-lo-peak
to
channel
A.
Use
a
500
termination.
B
Switch
on
the Scope Meter
and
press the
SCOPE
key
to get
into
SCOPE
mode.
Now
press
me
ALfTO
SET
key.
Check
that
the
display
Is
stable
and
well triggered. Minimal
2 and maximal 20
signal periods
must be
displayed,
over 8
divisions.
The
signal
amplitude
must
be approximately
5
divisions.
The
NOTRIG
indication
on
the display must not
flash.
C
Repeat
settings/p roced ure
for
ch
an
n
el
B.
2.
Vertical
dynamic
range and
position
range (move
control)
All
models
•••
This
test
checks
the
vertical
dynamic
range, together with the position range
(move
control).
A
certain
overdrive
of the
ScopeMeter must be
allowed.
Test equipment:
Tektronix
SG
503
Constant Amplitude Sine
wave
Generator
Test setup:
ScoMMeier
Settings/procedu re/requirements
for
channel
A:
Vertical
dynamic range
check:
A
Switch on
the
ScopeMeter and
press the
SCOPE
key
to
get
Into
SCOPE
mode.
6
Apply a 50 kHz
sine
wave
signal of
950
mV
peak-to-peak
to
channel
A.
Use
a
50Q
termination.
C
Press the
AUTO SET
key.
Set channel
A
to
1
00 mV/dIv.
and
set
the
tlmebas©
speed
to
lOps/div.
D
Use
the
vertical
MOVE
key to
shift the
bottom
of the sine
wave
vertically
over
the screen
in
the
lower
division.
Shin
the
top
of the sine
wave
in
the upper
division. Verify that
the top
and bottom
of the sine
wave
signal of
9.5
divisions can be
displayed
distortion free.
E
Apply
a 50
MHz
sine
wave
signal of approximately
500
mV
peak-
to-
peak
(4
divisions
on
the
screen)
to
channel
A.
Use a 50Q
termination.
F
Set the time
base speed
to
10
ns/dtv.
G
Now
a
sine
wave
with
an
amplitude
of
4
divisions
must be
displa/ed
distortion Iree.
Move
control check:
A
Adjust the signal amplitude to
6
divisions
on
the screen.
B
Check
that
the trace
can be
moved
over
4
divisions up
(
+ 4 d
I
v.)
a nd over
4
d visions
down
(-
4
d
iv.
)
Settlngs/procedure/requlrements
for
channel
6:
Repeat
the
total
procedure
for
channel
A.