Tektronix 7B10 Instruction Manual page 54

Calibration
7B10
TABLE
5-1
(CONT.)
Performance Check
Summary
Characteristic
Performance Requirement Performance
Check
Procedure
Title
Adjustment and
Performance
Check
Procedure
Title
Sweep
Accuracy
(cont.)
0°
to
+50°
C
Derate
+1
5°
to
+35°
C
accuracy
by
additional
1%.
Customer
verification
normally not required.
Sweep
Length
At
least
10.2
div.
B2.
Check
Sweep
Length and
Position-
ing
Range.
B2.
Check
Sweep
Length
and
Position-
ing
Range
MAG
Registration
0
5 div or less
from
graticule
center
when
changing from
MAG
XI
0
to
MAG
XI.
B3.
Check
Magnifier
Gain and
Registration.
B3.
Check/Adjust
Magnifier
Gain and
Registration.
Position
Range
POSITION
Controls
fully
CW
Start of
sweep must
be
to right
of
graticule center
at
1
ms/div.
j
B2,
Check Sweep
Length and
Position-
ing
Range.
B2.
Check
Sweep
Length and
Position-
ing
Range.
POSITION
Controls
fully
CCW
End
of
sweep must
be
left
of
'
graticule center
at
1
ms/div.
TRIGGERING SYSTEM
Trigger Sensitivity
for
Repetitive
Signals
Triggering
Frequency
Range®
Minimum
Triggering
Signal
Required
Coupling
Internal External
AC
30
Hz
to
250
MHz
0.5 div
50
mV
250
MHz
to
1
GHz
1
.5
div
150
mV
AC
LF
REJ"*
50
kHz
to
250
MHz
0.5
div
50
mV
250
MHz
to
1
GHz
1
.5
div
150
mV
AC
HF REJ 30
Hz
to
30
kHz
0.5
div
50
mV
DC® Dc
to
250
MHz
0.5 div
50
mV
250
MHz
to
1
GHz
1
.5
div
150
mV
A4.
Check
External
Triggering
Sensitivity.
A5.
Check
Internal
Triggering
Sensitivity
A2. Adjust
External
Trigger
Compensation
(Cl
17).
A3. Adjust
Sensitivitiy
(R147).
'The
triggering
frequency ranges given here are limited to the -3
dB
frequency
of
the oscilloscope
vertical
system
when
operating
in
the
Internal
mode,
^ill
not
trigger
on
sine
waves
at or
below 60
Hz
when
amplitudes
are less
than 8
divisions Internal or 3 volts External.
^The Triggering Frequency for
DC COUPLING
applies to frequencies
above 30 Hz
when
operating
in
the
AUTO TRIGGERING MODE.
5-3