Performance Check—2465B/2467B Service
COUNTER/TIMER/TRIGGER CHECKS
This section contains the portion of the Option 06 (Counter/Timer/Trigger) performance check procedure that directly
affects operation of the horizontal timing modes. If your instrument does not contain this option, continue with the Horizon-
tal checks.
Test equipment listed in Table 4-1 is required to perform this procedure. To assure accurate measurements, it is impor-
tant that test equipment used for making these checks meet or exceed the specifications described in Table 4-1 for
CTT checks.
Initial Control Settings.
Control settings not listed do not affect the procedure.
NOTE
Select channels to set VOLTS/DIV.
TRIGGER
HOLDOFF
A and B LEVEL
A and B SLOPE
A MODE
B MODE
A and B SOURCE
A and B COUPLING
Fully CCW
INIT@50%
+ (plus)
AUTO LVL
RUN AFT DLY
VERT
DC
VOLTS/DIV
CH 1 and CH 2
CH 1 and CH 2 VAR
CH 3 and CH 4
500 mV
In detent
0.1 V
CTT and WR Options
MENU Functions OFF
VERTICAL MODE
CH 1
CH 2, 3, 4
and INVERT
CHOP/ALT
20 MHz BW LIMIT
Input Coupling
CH 1 and CH 2
Horizontal
A SEC/DIV
SEC/DIV VAR
X10MAG
TRACE SEP
Delta
At and AV
TRACKING
ON
Off
ALT
Off
50 fi DC
10 ns (knob in)
In detent
Off
Fully CW
Off (press and release
until associated readout
is off)
Off
1.
Check Maximum Input Frequency at Minimum
Sensitivity
a. Connect the leveled sinewave generator's output via
a 50-ft cable to the CH 1 input connector.
b. Set generator to produce a 150-MHz, 4-division
display.
c. Press the MEASURE button to enter MENU mode.
d.
Select COUNTER ("4") from menu.
e. Select FREQ ("1") from menu.
f. Press the upper Trigger MODE button to reinitialize
the auto-trigger level.
g.
CHECK—Reading is between 149 MHz and 151
MHz and is stable.
4-29
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