Figure 6.7.6 Vco Free-Run Frequency Adjustment; Figure 6.7.7 Pre-Adjustment Of Servo Signal - Fujitsu M2361A Customer Engineering Manual

(2) Static Adjustment
d.
VCO free-run frequency adjustment (RV7)
CD
Trigger
by
itself at the positive-going edge.
Qj
Adjust the potentiometer RV6 so that the following Tvco is 102
ns±S ns.
L_~TVCO
_ - I
Tvco
=
l02ns!5ns
Figure 6.7.6 VCO Free-Run Frequency Adjustment
h. Pre-Adjustment of Servo Signal
(J)
Connect the CNB-34 to an oscilloscope.
CD
Trigger
by
itself and adjust the potentiometer RVI coarsely so
that the signal amplitude is 7.0V±O.SV (peak-to-peak). Refer to
Figure 6.7.7.
CNB-34 (CRAMP)
7V ±O.SV
pop
Figure 6.7.7 Pre-Adjustment of Servo Signal
c. Timer Gate Adjustment (RVS)
CD
Connect the CNB-32 to an oscilloscope.
CD
Trigger
by
itself at the negative-going edge.
CD
Adjust the potentiometer RVS so that the following TTC is
320nx±lOns.
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