Performance Check—2465B/2467B Service
w. Rotate the A control CW until the cursor stops
moving.
hh.
Move the Dual-Input Coupler to the CH 3 and CH 4
input connectors.
x. CHECK—Cursor is aligned with the top graticule line
within ±0.2 division. Push AV to turn off cursors.
ii.
CHECK—VOLTS/DIV and TRIGGER LEVEL Readout
accuracies for both setting-input level combinations listed
in Table 4-4 as in subparts 4 through 23 of part e.
y. Turn the INVERT function on, and obtain a 5-division
signal as explained in part g.
z. VERIFY—A down-arrow symbol appears to the left
of the CH 2 VOLTS/DIV readout.
aa.
CHECK—Display amplitude is between 4.9 divisions
and 5.1 divisions in amplitude (5 divisions ±2%). Turn the
INVERT function off when finished.
jj.
Set the Calibration Generator output level and VERT-
ICAL POSITION controls for a 2-division display vertically
centered on the graticule.
kk. Set the VERTICAL POSITION control to align the
top edge of the display with the top graticule line.
II.
CHECK—Signal display amplitude is 1.9 to 2.1
divisions.
bb.
Connect a 5 V standard-amplitude signal from the
Calibration Generator to the CH 1 OR X and CH 2 input
connectors via a 50 fi BNC cable and a Dual-Input
Coupler.
mm.
Set the VERTICAL POSITION control to align the
bottom edge of the signal display with the bottom graticule
line.
cc. Set:
VOLTS/DIV
CH 1 and CH 2
VERTICAL MODE
2 V
CH 1 and CH 2
ADD
VAR
Off
On
In Detent
dd.
CHECK—Vertical deflection amplitude is 4.9 to 5.1
divisions.
nn.
CHECK—Signal display amplitude is 1.9 to 2.1
divisions.
oo.
Set the VERTICAL MODE buttons to disable CH 3
and display CH 4.
pp.
Repeat parts jj through oo for CH 4.
qq.
Disconnect the test setup.
ee.
VERIFY—A + (plus) symbol appears to the left of
the CH 2 VOLTS/DIV readout.
ff. CHECK—Signal amplitude reduces to 0.2 division or
less when CH 2 INVERT is on.
gg.
Set:
VERTICAL MODE
CH3
CH 1, CH 2, CH 4
ADD,
and INVERT
On
Off
5. Check Channel 2 Delay.
a. Set:
CH 1, 2
VERTICAL MODE
CH 3 and CH 4
20 MHz BW LIMIT
CH 1 and CH 2
Input Coupling
CH 1 and CH 2
VOLTS/DIV
A SEC/DIV
TRIGGER SOURCE
On
Off
Off
50
SI
DC
10 mV
1 us (knob in)
CH 1
4-10
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