Calibration-7D15
ADJUST FOR
EQUAL
DISTANCE
1433-8
Fig.5-2. Method foradjustingtriggerpreset.
h . Adjust R149 to center the aberrations about the~/4. ATTENUATORACCURACY(CHECK)
center of the sine wave (see Figure 5-2).
a. Set VerticalPlug-In sensitivitycontrol to 5 mV .
i. Disconnect the Sine-Wave Generator . Leave 10X
Probe connected for step 3.b .Inserttwo 10X attenuators between the output ofthe
Square-Wave Generator and the 7D15 input.
c. With the Channel P-P SENS control set to .1 V, set
the Square-Wave Generator amplitude to obtain a five-
3 . TRIGGERAMPLIFIERCOMPENSATIONdivisiondisplay.ONr-Csr Fb1rrr TP41Po2UJR
(CHECK/ADJUST)'fp1141FOP-CM6
a . Connect the Square-Wave Generator to the A Input
connector through 10X Attenuator and a Feed-Throughd . Remove one 10X attenuator and set the P-P SENS
Termination . Set the repetitionrate to approximatelycontrol to 1 V .
1 kHz .Set the HI AMPLITUDE-FASTRISE switch to HI
AMPLITUDE.
e .Check for a displayof fivedivisions,?0 .25 division.
b. Set the 7D15 A and B COUPLswitches to DC .
f. Remove the 10X attenuator and set the P-P SENS
c . SettheVertical Plug-in sensitivityto20 mV/divisioncontrol to 10 V .
and adjust the Square-Wave Generator output amplitude
to obtain a verticaldisplay of five divisions. Obtain a
triggered display with a sweep rate of approximately
0 .5ms .g .Check fora display offivedivisions,?0 .25 division.
d . Adjust R131 to obtain the best frontcorner .
h.Move the 10X Probe totestpoint 141 .Repeat steps b
through g.Seas
v5ik313
P-f"c,0"4 'I-
e .Move the 10X Probe totestpoint 41 (seeFigure 5-1).
MoveIns`~e~~v~2(.-to0CkZP.
i. Disconnect Square-WaveGenerator ; leave 10X
f. Adjust R31 for the best front corner .Probe connected for step 5.
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